Si2493/57/34/15/04 Global ISOmodem-EVB

Si2493/57/34/15/04 Global ISOmodem-EVB
Si2493/57/34/15/04
Global ISOmodem-EVB
Evaluation Board for the Si2493/57/34/15/04
with a UART Interface
Description
The global Si2493/57/34/15/04-EVB evaluation board
provides the system designer an easy way of evaluating
the Si2493/57/34/15/04 ISOmodem®. The Si2493/57/
34/15/04-EVB consists of a motherboard with a power
supply, an RS-232 and USB interface, other ease-ofuse features, and a complete removable modem
module on a daughter card. (A functional block diagram
of the Si2493/57/34/15/04-EVB is shown below.) The
Si2493/57/34/15/04 ISOmodem is a complete
controller-based modem chipset with an integrated and
programmable direct access arrangement (DAA) that
meets global telephone line requirements. Available as
a combination of one 16-pin small line-side device and
one 24-pin or 16-pin system-side device, the Si2493/57/
34/15/04 ISOmodem eliminates the need for a separate
DSP data pump, modem controller, memories, codec,
isolation transformer, relays, opto-isolators, and a 2- to
4-wire hybrid. The Si2493/57/34/15/04 is ideal for
embedded modem applications due to its small board
area, controller-based architecture, low power
consumption, and global compliance. The Si2493/57/
34/15/04-EVB provides an RJ-11 jack (for interfacing
the Si2493/57/34/15/04-EVB to the phone line), and
USB and RS232 serial ports for interfacing to a PC or
data terminal. This allows the ISOmodem to operate as
a serial modem for straightforward evaluation of the
Si2493/57/34/15/04. To evaluate the Si2493/57/34/15/
04 ISOmodem in an embedded system, the daughter
card can be used independently of or with the
motherboard. A direct access header (JP3) is available
on the motherboard to bypass the RS-232 transceivers
and connect the Si2493/57/34/15/04 ISOmodem
directly to a target system.
An on-board rectifier, filter, and voltage regulator allow
the power input to be 7.5–13 V ac or dc (either polarity)
supplied through a screw terminal (J3) or a standard
2 mm power jack (J4). Alternatively, power can be
supplied through the USB interface (whether the USB or
RS232 interface is used). The evaluation board can
drive an external speaker for call monitoring or the
piezoelectric speaker mounted directly on the board.
Please note that the PCM interface, parallel interface,
and EEPROM are available on the FT only. See
"1.7.EVB Part Numbers" on page 5 for ISOmodem EVB
options.
Features
The Si2493/57/34/15/04-EVB includes the following:
Dual RJ-11 connection to phone line
RS-232 and USB interface to PC
Piezoelectric speaker for call monitoring
Direct access to Si2493/57/34/15/04 for embedded
application evaluation
Easy power connection to common 7.5 V–13.5 V
power supplies or USB port.
9 V ac adaptor
Support for daisy chain operation with Si3000 voice
codec (FT only)
Simple installation and operation
EEPROM (FT only)
Functional Block Diagram
PCM Data/
Control
9 V dc at 300 mA ac
Adaptor
7.5–13.5 V dc or
peak ac
Rectifier
Filter
Voltage
Regulator
3.3 V
Audio
Out
Audio
Amplifier
Direct
Access HDR
Daughter Board Boundary
5V
USB
Connector
UART
PCM
Interboard
Connector
USB I/F
DB9
RS-232
Transceivers
Interface
Selection
Jumpers
AOUT
Si2493/57/34/15/04
RESET
XTALO
Si3018*
Interface
Circuit
RJ-11
phone
line
XTALI
Push Button
Reset
Power-On
Reset
Rev. 0.6 2/05
*Si3010 for Si2404
Copyright © 2005 by Silicon Laboratories
Si2493/57/34/15/04-EVB
Si2493/57/34/15/04
Global ISOmodem-EVB
1. Si2493/57/34/15/04-EVB Setup and 1.2. Si2493/57/34/15/04-EVB Quick Start—
USB Interface
Evaluation
This section explains how to set up the Si2493/57/34/
15/04-EVB for evaluation as an RS-232 or USB
interface modem. Jumper settings, power connection,
PC/terminal connections, and terminal program
configuration settings are given. The initial modem
setup after power is applied as well as a basic tutorial
on modem operation are provided. Si2493/57/34/15/04EVB configurations for evaluating additional features
are discussed separately. See the Si2493/57/34/15 or
Si2404 data sheets and “AN93: Si2493/57/34/15/04/04
Modem Designer’s Guide” for complete details.
1.1. Si2493/57/34/15/04-EVB Quick Start—
RS-232 Interface
1. Set jumpers according to Figure 1 or Figure 2.
2. Connect:
DB-9 to PC COM 1 (with a pass-through cable).
RJ-11 to phone line or test box.
9 V ac adaptor (or USB cable).
3. Bring up:
Turn on power to modem.
Autobaud automatically adjusts modem DTE speed and
protocol.
4. Type “AT” followed by a carriage return.
Should echo “AT” and then an “OK”.
1. Set jumpers according to Figure 3 or Figure 4.
2. Connect:
USB cable to PC
RJ-11 to phone line or test box
3. Download USB driver for your operating system from the
CD supplied with the evaluation board.
4. Install driver.
5. Bring up.
Reset the modem.
Autobaud automatically adjusts modem DTE speed and
protocol.
6. Type “AT” followed by a carriage return.
Should echo “AT” and then an “OK”.
1.3. Jumper Settings
Check all jumper settings on the Si2493/57/34/15/04EVB before applying power. The standard factory
jumper settings for the FT package are shown in
Figure 1; the FS package is shown in Figure 2. These
settings configure the Si2493/57/34/15/04-EVB for RS232 serial operation with autobaud. Any standard
terminal program configured to communicate through a
PC COM port can be used to communicate with the
Si2493/57/34/15/04-EVB. The standard factory jumper
settings for USB operation with the FT package are
shown in Figure 3; the FS package is shown in Figure 4.
The only difference between RS-232 and USB jumper
settings is that JP5 must be installed to enable USB.
Figure 1. Standard Factory Jumper Settings—RS-232 Interface (Outlined in Gray) (FT Option)
2
Rev. 0.6
Si2493/57/34/15/04
Global ISOmodem-EVB
Figure 2. Standard Factory Jumper Settings—RS-232 Interface (Outlined in Gray) (FS Option)
Figure 3. Standard Factory Jumper Settings—USB Interface (Outlined in Gray) (FT Option)
Rev. 0.6
3
Si2493/57/34/15/04
Global ISOmodem-EVB
Figure 4. Standard Factory Jumper Settings—USB Interface (Outlined in Gray) (FS Option)
1.4. Power Requirements
The Si2493/57/34/15/04-EVB has an on-board diode
bridge, filter capacitor, and voltage regulator (U1).
Power can be supplied from any source capable of
providing 7.5 V–13 V dc or 7.5 V–13 V peak ac and at
least 100 mA. (Additional current may be required if a
speaker is connected for monitoring call progress
tones.) Power may be applied to the Si2493/57/34/15/
04-EVB through the screw terminals (J3), the 2 mm
power jack (J4), or the USB cable (even if the modem is
configured for RS-232 operation). The onboard fullwave rectifier and filter ensure the correct polarity is
applied to the Si2493/57/34/15/04-EVB. Daughter card
power is supplied through voltage regulator U2 by
connecting JP7, pins 1 and 2. Daughter card current
can be measured by connecting an ammeter between
JP7, pins 1 and 2. Failure to connect pins 1 and 2 of
JP7 through either a jumper or a low-impedance
ammeter may result in damage to the Si2493/57/34/15/
04-EVB.
1.5. Terminal and Line Connections
The Si2493/57/34/15/04 can be tested as a standard
serial data modem by connecting the Si2493/57/34/15/
04-EVB to a personal computer or other data terminal
equipment (DTE), phone line, and power. Connect a PC
serial port to the DB9 connector on the Si2493/57/34/
15/04-EVB with a pass-through cable. The RS-232
transceivers on the EVB can communicate with the DTE
4
at rates up to 1 Mbps. Any standard terminal program,
such as HyperTerminal or ProComm, running on a PC
communicates with the Si2493/57/34/15/04-EVB. The
standard factory jumper configuration has autobaud
enabled. Autobaud detects the DTE speed, data length,
parity, and number of stop bits.
If JP9 is installed, autobaud is disabled. Configure the
terminal emulation program to 19200 bps, eight data
bits, no parity, one stop bit, and hardware (CTS)
handshaking. Connect the RJ-11 jack on the Si2493/57/
34/15/04-EVB to an analog phone line or telephone line
simulator, such as a Teltone TLS 5.
1.6. Making Connections
With the terminal program properly configured and
running, apply power to the Si2493/57/34/15/04-EVB.
Type “AT<cr>”, and the modem should return “OK”
indicating the modem is working in the command mode
and communicating with the terminal. If the “OK”
response is not received, try resetting the modem by
pressing the manual reset switch (S1); then, again type
“AT<cr>.” Next, type “ATI6<cr>.” The modem should
respond with “2493”, “2457”, “2434”, “2415”, or “2404”
indicating the terminal is communicating with an Si2493,
Si2457, Si2434, Si2415, or Si2404.
Type “ATS0=2<cr>” to configure the modem to answer
on the second ring.
To take the modem off-hook, type “ATH1<cr>.” The
modem should go to the off-hook state, draw loop
Rev. 0.6
Si2493/57/34/15/04
Global ISOmodem-EVB
current, and respond with an “OK.” Next, type
“ATH<cr>” or “ATH0<cr>”, and the modem should hang
up (go on-hook) and stop drawing loop current.
To make a modem connection, type “ATDT(called
modem phone number)<cr>.” Once the connection is
established, a “CONNECT” message appears indicating
the two modems are in the data mode and
communicating. Typing on one terminal should appear
on the other terminal. To return to the command mode
without interrupting the connection between the two
modems, type “+++.” Approximately two seconds later,
“OK” appears. The modem is now in command mode
and accepts “AT” commands.Type “ATH” (or “ATH0”) to
terminate the data connection, or type “ATO” to return to
the data mode. After the ATO command, the modem
resumes the data connection and no longer accepts AT
commands.
1.7. EVB Part Numbers
The ISOmodem evaluation boards are offered in
multiple speeds and packaging options. The first four
numbers indicate the system-side device. The next two
letters indicate the system-side package (FS–Lead-free,
16-pin SOIC; FT–Lead-free, 24-pin TSSOP). The final
two numbers indicate the line-side device. See Figure 5.
Si2457FS18-EVB
LS Part Number (Si30xx)
SS Package
SS Part Number
Figure 5. EVB Part Number Example
2. Si2493/57/34/15/04-EVB
Functional Description
voltages to power the board. RS-232 transceivers and a
DB9 connector allow the Si2493/57/34/15/04-EVB to be
easily connected to a PC or other terminal device.
Jumper options allow direct access to the LVCMOS/TTL
level serial inputs to the Si2493/57/34/15/04, bypassing
the RS-232 transceivers or USB interface. This is
particularly useful for directly connecting the Si2493/57/
34/15/04 to embedded systems.
The Si24xxURT-EVB motherboard connects to the
daughter card through two connectors, JP1 and JP2.
JP1 is an 8x2 socket providing connection to all Si2493/
57/34/15/04 digital signals and regulated 3.3 V power
for the Si2493/57/34/15/04. The Si2493/57/34/15/04
digital signals appearing at JP1 (daughter card
interface) are LVCMOS and TTL compatible. The
Si2493/57/34/15/04 daughter card must be powered by
3.3 V. The motherboard is factory configured for 3.3 V
with JP7. JP2 is a 4x1 socket providing connection
between the daughter card and the RJ-11 phone jack.
2.1.1. Voltage Regulator/Power Supply
The input voltage to either J3 or J4 must be between 7.5
and 13.5 V dc or 7.5 and 13.5 VPEAK ac. The
motherboard includes a diode bridge (D1–D4) to guard
against a polarity reversal of the dc voltage or to rectify
an ac voltage. The power source must be capable of
continuously supplying at least 100 mA. C6 serves as a
filter cap for an ac input. The voltage regulator, U1,
provides 5 V for the motherboard and the input for
voltage regulator U2, which outputs 3.3 V for use on the
motherboard and to power the daughter card. Si24xxDC
power consumption can be measured by placing a
meter between pins 1 and 2 of JP7. The connection
between JP7 pins 1 and 2 must be made at all times
when power is applied to the evaluation board either
through a jumper block or a low-impedance meter to
avoid damage to the daughter card. Power is supplied
to U2 through D5 from the USB.
2.1.2. Reset Circuitry
The Si2493/57/34/15/04-EVB is a multipurpose
evaluation system. The modem daughter card
illustrates the small size and few components required
to implement an entire controller-based modem with
global compatibility. The daughter card can be used
independently of, or in conjunction with, the
motherboard. The motherboard adds features that
enhance the ease of evaluating the many capabilities of
the Si2493/57/34/15/04 ISOmodem®.
2.1. Motherboard
The motherboard provides a convenient interface to the
Si2493/57/34/15/04 DC (daughter card). The versatile
power supply allows for a wide range of ac and dc
The Si2493/57/34/15/04 requires a reset pulse to
remain low for at least 5.0 ms after the power supply
has stabilized during the powerup sequence or for at
least 5.0 ms during a power-on reset. Most production
Si2493/57/34/15/04 modem chipset applications require
that RESET be controlled by the host processor. Certain
Si2493/57/34/15/04
operation
modes,
including
powerdown, require a hardware reset to recover.
The Si2493/57/34/15/04-EVB contains two reset
options, an automatic power-on reset device, U3
(DS1818) (default), and a manual reset switch (S1) to
permit resetting the chip without removing power. A
reset, regardless of the mechanism, causes all modem
settings to revert to factory default values. See
Rev. 0.6
5
Si2493/57/34/15/04
Global ISOmodem-EVB
Figure 13 on page 17 and Figure 15 on page 19 for the
reset circuit schematic.
Table 1. Interface Selection Jumpers
Jumper
2.1.3. DS1818
The DS1818 is a small, low-cost device that monitors
the voltage on VD and an external reset pushbutton. If
VD drops below 3.0 V, the DS1818 provides a 220 ms
active-low reset pulse. On powerup, the DS1818 also
outputs an active low reset pulse for 220 ms after VD
reaches 90% of the nominal 3.3 V value. The DS1818
outputs a 220 ms reset pulse any time the power supply
voltage exceeds the 3.3 V ±10% window.
2.1.4. Manual Reset
Function
JP1
Daughter Card Digital Connector.
JP2
Daughter Card Phone Line Connector.
JP3
Direct Access Header.
JP4
PCM Interface.
JP5
USB Enable (RS-232 Disable).
JP6
Options.
JP7
3.3 V Power for Daughter Card.
JP8
Disable both RS-232 and USB.
The manual reset switch (S1) performs a power-on
reset. This resets the Si2493/57/34/15/04 to factory
defaults without turning off power. If S1 is used in
conjunction with U3, pressing S1 activates the reset
monitor in the DS1818 and produces a 220 ms active
low reset pulse.
JP9
Autobaud disable.
JP10
EEPROM enable.
JP11
Enable 27 MHz Clock option.
JP12
Not used.
2.1.5. EEPROM Enable (FT Only)
JP13
On-board speaker enable.
Connecting JP10 enables the optional EEPROM, U9.
See “AN93: Si2457/Si2434/Si2415/Si2404 Modem
Designer’s Guide” for programming details.
2.1.6. Interface Selection
The serial interface of the Si2493/57/34/15/04-EVB can
be connected to a computer, terminal, embedded
system, or any other data terminal equipment (DTE) via
a standard RS-232 interface, USB interface, or through
a direct TTL serial interface.
The Si2493/57/34/15/04 can be tested as a standard
data modem by connecting the Si2493/57/34/15/04EVB to a personal computer or other DTE power supply
and a phone line. A PC can communicate with the
Si2493/57/34/15/04-EVB using a standard terminal
program, such as HyperTerm or ProComm.
Jumper settings determine how the Si2493/57/34/15/
04-EVB is connected to the DTE. Table 1 lists the
interface controlled by each motherboard jumper. See
Figure 14 on page 18 and Figure 24 on page 28.
6
2.1.7. RS-232 Interface
This operation mode uses the standard factory jumper
settings illustrated in Figure 1 on page 2. The Maxim
MAX3237 transceiver interfaces directly with the TTL
levels available at the serial interface of the Si2493/57/
34/15/04 and, using internal charge pumps, makes
these signals compatible with the RS-232 standard. The
RS-232 transceiver on the Si2493/57/34/15/04-EVB can
communicate at rates between 300 bps and 1 Mbps.
This simplifies the connection to PCs and other data
terminal equipment (DTE). The signals available on the
Si2493/57/34/15/04-EVB
serial
interface
(DB9
connector) are listed in Table 2.
2.1.8. USB Interface
The USB cable connects to J5 on the motherboard and
provides both data and power. Installing a jumper on
JP5 enables the USB interface and disables the RS-232
interface. The USB interface is provided by U5. A USB
driver for this chip is available for most PC and MAC
operating systems on the CD.
2.1.9. Direct Access Interface
The motherboard supplies power through J3, J4, or
USB, power-on reset, and an RJ-11 jack for the modem.
The direct access interface (JP3) is used to connect the
motherboard to an embedded system. JP3 provides
access to all Si2493/57/34/15/04 signals available on
the daughter card. It is necessary to install a jumper on
JP8 to disable both the RS-232 and USB interface and
prevent signal contention. Leave the jumper between
JP7 pins 1 and 2. Figures 6 and 7 illustrate the jumper
settings required for the direct access mode using the
motherboard.
Rev. 0.6
Si2493/57/34/15/04
Global ISOmodem-EVB
2.1.10. PCM Interface (FT Only)
The Si2493/57/34/15/04 PCM interface is available on JP4. Table 3 lists the pin connections for JP4 designed to
connect directly to the Si3000SSI-EVB JP6.
Table 2. DB9 Pin Connections
J1 Name
J1 Symbol
J1 Pin
Carrier Detect
CD
1*
See note
DCD/EESD
Received Data
RXD
2
9
RXD
Transmit Data
TXD
3
10
TXD
Data Terminal Ready
DTR
4*
See note
ESC/RI
Signal Ground
Si2493/57/34/15/04 Si2493/57/34/15/04
Pin
Name
SG
5
6
GND
Data Set Ready
DSR
6*
See note
INT/AOUT
Ready to Send
RTS
7*
See note
RTS/RXCLK
Clear to Send
CTS
8
11
CTS
Ring Indicator
RD
9*
17
RI
*Note: JP6 jumper option.
Table 3. JP 4 PCM Interface Pin Connections
JP 4 Pin
Board Signal
Si24xx Pin
Si24xx Signal
1
CLKOUT_H
3
CLKOUT
2
TXCLK_H
4
FSYNC
3
GND
6, 20
GND
4
GND
6, 20
GND
5
RXCLK_H
24
SDO
6
EESD_H
18
SDI
7
RESETb
12
RESET*
8
3.3 V
5, 21
VD3.3
9
GND
6, 20
GND
10
VCC (+5 V)
Rev. 0.6
7
Si2493/57/34/15/04
Global ISOmodem-EVB
Figure 6. Jumper Settings for Direct Access Interface (FT Option)
Figure 7. Jumper Settings for Direct Access Interface (FS Option)
8
Rev. 0.6
Si2493/57/34/15/04
Global ISOmodem-EVB
The block diagram in Figure 8 shows how the two evaluation boards are connected to demonstrate voice mode
operation.
Si3000SSI-EVB Motherboard
Si3000 Daughterboard
JP5
1
2
J
3
Speaker
SW2
Mic Line
In
Leave J3 unconnected.
Power is provided
through JP 6 connector.
J6 of Daughterboard
Line J
Out 6
12V
GND
JP4
JP4
SW3
2
Use telephone in off
hook position to emulate
600 Ω Handset. Not all
handsets are
implemented as 2 wire
anymore.
RJ11
1
JP6
Connect the telephone to RJ11
(right side) on the Si3000
Daughterboard, NOT to the
RJ11 on motherboard. Look for
silk screen marking "HDST".
Note M1 and M0
jumper settings.
Direct Connection
Si24xx-EVB
JP4
Power
Adapter
J4
RS232
External
+12V
Supply
Si24xx-DC
RJ11
WAN
COM 1
Telephone
Windows PC
Figure 8. Connection Block Diagram for Si3000SSI-EVB and Si24XXURT-EVB
2.1.11. Voice Mode
The Si3000 is used in conjunction with the Si2493/57/34/15/04 to transmit and receive 16-bit voice samples to and
from telephone lines as shown in Figure 9.
AT commands
HOST
Responses
Si2457 Modem
2- wire
DAA
FSYNC
SDO
SDI
CLKOUT
TDMA Interface
FSYNC
SDO
SDI
MCLK
Handset
Si3000 Voice Codec
Figure 9. Voice Mode Block Diagram
Rev. 0.6
9
Si2493/57/34/15/04
Global ISOmodem-EVB
Figure 10 shows the actual circuit connection between the Si2493/57/34/15/04 and the Si3000.
VDD
C52
5
21
C50
INTb
RIb
24
23
22
15
4
16
17
18
3
8
9
10
11
RESETb
12
CLKIN/XTALI
XTALO
1
XTALI
2
XTALO
INT/D0
RI/D1
EESD/D2
CLKOUT/EECS/A0
C1A
RTS/D7
RXD/RD
TXD/WR
CTS/CS
C2A
RESET
6
20
7
19
RTSb
RXD
TXD
CTSb
EECLK/D5
DCD/D4
ESC/D3
AOUT/INT
D6
14
C1A
13
C1B
GND
GND
VDA
VDB
DCDb
ESC
AOUT
U3
VD3.3
VD 3.3
N O T E : D6 (PIN 4) MUST NOT HAVE PULLDOWN RESISTOR
Si2493/57/34/15/04
C51
C53
VDD
C66
R61
0
C68
0.1 uF
SPKR_R
1
MIC_BIAS
2
HDST
3
4
VDD
R62
47 k
5
R63
47 k
6
7
8
SPKR_R
MIC_BIAS
HDST
SPKR_L
LINEO
GND
SDI
VA
SDO
VD
FSYNC
LINEI
MCLK
MIC_IN
SCLK
RESET
16
15
0 . 1 uF
SPKR_L
LINEO
14
13
12
11
LINEI
10
M I C _IN
9
Si3000
Figure 10. Circuit Connection between the Si2493/57/34/15/04 and the Si3000
To use voice mode register U71 and data memory location 0x0059 must be properly configured.
Setting data memory 0x0059 = 0x0001 enables the Si24XX TDMA interface. When U71 is set to the value 0x0011
a 16-bit voice sample will be transmitted from the Si3000 through the Si2493/57/34/15/04 and DAA to the remote
device. Likewise, an analog signal from the remote device will pass through the DAA where it is converted to a 16bit voice sample, the Si24XX and finally the Si3000 where it is converted back to the analog receive signal.
In this example, the Si3000 has its digital TDMA interface configured as the Slave Serial Mode by adding a 50 kΩ
pull-down resistor to SDO pin and a pull-up 50 kΩ resistor to SCLK pin. In this mode, the Si3000’s MCLK is driven
by the 2048 kHz clock from Si2493/57/34/15/04. The FSYNC has an 8 kHz pulse input. The bit clock is 2048/
8 = 256 bits per frame sync. Refer to the Si3000 documentation for further details.
To send control information to the Si3000, the Si2493/57/34/15/04 modem chip provides a PCM control port
0x004B that allows the user to send control words across by using the AT memory write command. See Table 4. for
details. Wait for the “OK” (approximately 300 ms after each command). When a connection is established, the “AT.”
command is used to generate the DTMF tone of a number; For example, AT.3<CR> will generate a number 3
DTMF tone without the need for an external DTMF generator. See “Voice Mode Example” for details.
10
Rev. 0.6
Si2493/57/34/15/04
Global ISOmodem-EVB
Table 4. Voice Commands
AT Commands
Purposes
AT:U71,11
Configure modem to send/receive data in linear mode to/from Si3000
interface
AT*Y254:W0059,7785
Enable Si2457 modem TDMA’s interface by setting LSBit of memory
0x0059
AT*Y254:W004B,011C
Write to Si3000 Control Reg1: Line Driver, Handset Driver, and Microphone Bias Normal Operations are enabled.
AT*Y254:W004B,0200
Write to Si3000 Control Reg2: HPF enabled, PLL divided by 5, Digital
Loopback Off
AT*Y254:W004B,0300
Write to Si3000 Control Reg3: PLL Divider N1
AT*Y254:W004B,0400
Write to Si3000 Control Reg4: PLL Divider M1
AT*Y254:W004B,055A
Write to Si3000 Control Reg5: Line-In, Mic-In, Handset-In, FIR are activated.
AT*Y254:W004B,067F
Write to Si3000 Control Reg6: Line-Out, Handset-Out are activated.
AT*Y254:W004B,075F
Write to Si3000 Control Reg7: SPKR_L, SPLR_R are activated.
ATH1
Off-hook command for calling
AT.1
Dial individual number 1
AT.0
Dial individual number 0
AT.4
Dial individual number 4 and wait for answer
Rev. 0.6
11
Si2493/57/34/15/04
Global ISOmodem-EVB
2.2. Voice Mode Example
Perform the following steps:
1. Connect hardware as shown in Figure 8 on page 9. Note that the Si3000 Evaluation Board requires an external 12 V supply
and derives 5 V power from the Si24xx-EVB. The Si24xx-EVB should be connected to the supplied power adapter or
powered through USB.
2. Enter the following AT commands to initialize the modem:
ATZ
reset modem
ATE0
disable echo
AT:U0071,11
enable voice routing firmware
AT*Y254:W0059,7785
enable Si3000 Hardware Interface
In actual application, this line
must be implemented as a read-modifywrite consisting of the following:
n = AT*Y254:Q0059
n |= 1
AT*Y254:W0059,n
AT*Y254:W004B,011C
Si3000 Reg 01 = 1C
This applies power to SPKRx,HDST,LINEO
AT*Y254:W004B,0545
Si3000 Reg 05 = 45
Enable HDST into ADC mixer
MIC input disabled
LINEI input disabled
AT*Y254:W004B,065D
Si3000 Reg 06 = 6D
Activate HDST as output
Keep LINEO muted
0 db Receive Gain Setting
AT*Y254:W004B,075C
Si3000 Reg 07 = 5C
0 dB Transmit Gain
Keep SPKRx muted
3. Type "ATDTnnn", where nnn represents the telephone number of the remote telephone.
4. The remote phone rings and should be picked up.
5. Also pick up the local phone connected to the Si3000 Evaluation Board.
6. At this point, a voice connection exists between the two telephones.
7. It is also possible to send a series of single digit DTMF tones to the remote phone using the "AT.N" command (dot character
is in-between "AT" and "N", where N is a DTMF digit 0-9,A-F).
Example:
AT.1 sends DTMF digit 1, return to voice mode.
12
Rev. 0.6
Si2493/57/34/15/04
Global ISOmodem-EVB
2.2.1. Audio Output
Audio output is provided from the Si2457/34/15 on the
AOUT pin. This signal allows the user to monitor call
progress signals, such as dial tone, DTMF dialing, ring,
busy signals, and modem negotiation. Control of this
signal is provided by AT commands and register
settings described in the introduction. The AOUT signal
can be connected to an amplifier, such as the LM386
(the default stuffing option on the Si2457/34/15URTEVB), for high-quality output. AOUT can also be
connected to a summing amplifier or multiplexer in an
embedded application as part of an integrated audio
system.
The daughter card requires a 3.3 V supply capable of
providing at least 35 mA and communicates with the
system via LVCMOS/TTL-compatible digital signals on
JP1. The RJ-11 jack (TIP and RING) is connected via
JP2. Be sure to provide the proper power-on reset pulse
to the daughter card if it is used in the stand-alone
mode.
2.3.1. Reset Requirements
The Si2457/34/15 ISOmodem® daughter card must be
properly reset at powerup. The reset pin (pin 8) of the
Si2457/34/15 (JP1, pin 13) must be held low for at least
5.0 ms after power is applied and stabilized to ensure
the device is properly reset.
2.2.2. Amplifier (LM386)
2.3.2. Crystal Requirements
The audio amplifier circuit consists of U10 (LM386),
C20, R3, R4, C21, C22, C23, R5, C24, and an optional
loudspeaker, LS1. The LM386 has an internally-set
voltage gain of 20. R3 and R4 provide a voltage divider
to reduce the AOUT signal to prevent overdriving the
LM386. C20 provides dc blocking for the input signal
and forms a high-pass filter with R3+R4 while R4 and
C21 form a low-pass filter. These four components limit
the bandwidth of the AOUT signal. C22 provides highfrequency power supply bypassing for the LM386 and
should be connected to a hard ground and located very
close to the amplifier’s power supply and ground pins.
C23 and R5 form a compensation circuit to prevent
oscillation of the high current PNP transistor in the
LM386 output stage on negative signal peaks. These
oscillations can occur between 2–5 MHz and can pose
a radiation compliance problem if C23 and R5 are
omitted. C24 provides dc blocking for the output of the
LM386, which is biased at approximately 2.5 V (VCC/2),
and forms a high-pass filter with the impedance of the
loudspeaker (LS1). The output from the LM386 amplifier
circuit is available on the RCA jack, J2 (not installed).
Install jumper JP13 to enable the on-board speaker,
LS1.
Clock accuracy and stability are important in modem
applications. To ensure reliable communication between
modems, the clock must remain within ±100 ppm of the
design value over the life of the modem. The crystal
selected for use in a modem application must have a
frequency tolerance of less than ±100 ppm for the
combination of initial frequency tolerance, drift over the
normal operating temperature range, and five year
aging. Other considerations, such as production
variations in PC board capacitance and the tolerance of
loading capacitors, must also be taken into account.
2.3. Modem Module Operation
The Si2457/34/15URT-EVB daughter card is a complete
modem solution perfectly suited for use in an embedded
system.
2.3.3. Protection
The Si2493/57/34/15/04-EVB meets or exceeds all FCC
and
international
PTT
requirements
and
recommendations for high-voltage surge and isolation
testing without any modification. The protection/isolation
circuitry includes C1, C2, C8, C9, FB1, FB2, and RV1.
The PCB layout is also a key “component” in the
protection circuitry. The Si2493/57/34/15/04-EVB
provides isolation to 3 kV. Contact Silicon Laboratories
for information about designing to higher levels of
isolation.
3. Design
The following sections contain the schematics, bill of
materials, and layout for the Si2493/57/34/15/04
including the daughter card and motherboard.
Rev. 0.6
13
+
Pin
1
3
5
7
9
11
13
2
4
8
10
12
14
16
1.3 k
R18
FB5
C55
Si2401
GPIO5/RIb/TXCLK
RXD
TXD
CTSb
RESETb
GPIO1/EOFR/RXCLK
GPIO2/DCDb
GPIO3/ESC
GPIO4/INTb/AOUT
JP1 Function
C54
VDD
C56
CLKOUT
TXCLK
RTSb
RXD
TXD
CTSb
RESETb
2
4
6
8
10
12
14
16
HEADER 8X2
1
3
5
7
9
11
13
15
JP1
ESC
EESD
RIb
INTb
AOUT
RXCLK
DC Db
5
6
7
8
RXD
TXD
CTSb
RESETb
16
17
18
INTb
RIb
EESD
Si2401
RESET
RXD
TXD
CTS
VDA
C2A
C1A
GPIO1/EOFR/RXCLK
GPIO2/CD
GPIO3/ESC
XTALO
GPIO4/INT/AOUT
GPIO5/RI/TXCLK
C51
9
10
2
1
12
RESETb
VDD
RESET
RTS/D7
RXD/RD
TXD/WR
CTS/CS/ALE
CLKOUT/A0/EECS
VDA
13
14
2
1
C53
C2A
C1A
EECLK/D5/RXCLK
DCD/D4
CLKIN/XTALI
ESC/D3
AOUT/INT
alt_RI/D6/TXCLK
XTALO
INT/D0
RI/D1
EEIO/D2
U3
C2A
C1A
Y1
C41
C40
These components
for internal
Silabs use only.
C2A
C1A
XTALO
XTALI
XTALO
XTALI
C52
1
Figure 11. Si2493/57/34/15/04 Schematic
8
9
10
11
RTSb
RXD
TXD
CTSb
3
24
23
22
15
4
RXCLK
DC Db
ESC
AOUT
TXCLK
CLKOUT
U1
CLKIN/XTALI
C50
Overlap the 16-pin SOIC and 24-pin TSSOP
16
15
14
11
3
RXCLK
DC Db
ESC
AOUT
TXCLK
VD3.3
4
VDD
VA
13
GND
12
5
21
VD3.3
VD 3.3
GND
GND
VDA
VDB
Rev. 0.6
6
20
7
19
14
2
"Si24xx2G-DC Rev. 1.0 ISOmodem TM"
JP2
INTb
EESD
AOUT
RIb
DC Db
R20
R21
R22
R23
R19
0
RING
TIP
C2A
C1A
These components
for internal
Silabs use only.
Si2493/57/34/15/04
Global ISOmodem-EVB
C2A
C1A
R13
R12
R9
Bias
C2
C1
C5
C6
10
7
4
6
5
VREG2
VREG
IB
C2B
C1B
U2
IGND
15
Rev. 0.6
RX
8
9
1
12
13
16
14
2
3
Si3010/18
RNG1
RNG2
QE
QE2
QB
DCT2
DCT3
DCT
SC
C4
R1
+
11
R2
R11
Q4
R4
R8
R7
R5
Q1
Q3
C10
R30, R31, R32, R33, C30 and C31
are an optional CID population
Z1
R3
Q2
Hookswitch
Figure 12. Si3018/10 DAA Schematic
Ring Detect/CID
Q5
DC Term
R10
C7
R6
No Ground Plane In DAA Section
+
D1
C3
-
FB1
FB2
C9
C8
R15
R16
TIP
RV1
R ING
Si2493/57/34/15/04
Global ISOmodem-EVB
15
Si2493/57/34/15/04
Global ISOmodem-EVB
4. Bill of Materials: Si24xx Daughter Card
Item
1
2
3
Quantity
2
C2,C1
1
C3
1
C4
Reference
Rating
Y2
250 V
50 V
Tolerance
±20%
±20%
±20%
Foot Print
1808
0805
Size A
16 V
50 V
Y3
16 V
16 V
16 V
10 V
400 V
±20%
±20%
±10%
±20%
±5%
±20%
±10%
0603
0603
1808
0603
0603
0603
Case A
Mini-DIP
0603
2x8 Surface Mount
Header, .1 space
CONN1X4-100SMT
SOT-23
SOT-23
SOT-23
SOD 6
1210
0402
1210
1210
0402
0805
0402
1206
1210
0603
24pin TSSOP
16pin SOIC
ATS-SM
4
5
6
7
8
9
10
11
12
13
3
1
2
1
2
1
1
1
2
1
C5,C6,C50
C7
C9,C8
C10
C41,C40
C51
C54
D1
FB1,FB2,FB5
JP1
0.1 uF
2.7 nF
680 pF
0.01 uF
33 pF
0.22 uF
1.0 uF
HD04
Ferrite Bead
HEADER 8X2
14
1
JP2
4X1 Header_0
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
2
1
2
1
1
1
1
1
2
2
1
1
1
4
1
1
1
Q3,Q1
Q2
Q4,Q5
RV1
R1
R2
R3
R4
R5,R6
R8,R7
R9
R10
R11
R12,R13,R15,R16
U3
U2
Y1
32
1
Z1
Non-installed Components
33
2
C31,C30
34
2
C55,C56
35
1
R18
36
5
R19,R20,R21,R22,R23
37
2
R32,R30
38
2
R33,R31
39
1
C52
40
1
C53
41
1
U1
16
Value
33 pF
10 nF
1.0 uF
NPN
PNP
NPN
SiDactor
1.07 K
150
3.65 K
2.49 K
100 K
20 M
1M
536
73.2
0
Si24xx
Si3018/10
4.9152Mhz
43 V
120pF
0.1 uF
1.3 k
0
15M
5.1M
0.1 uF
0.22 uF
Si2401
300 V
300 V
80 V
275 V
1/2 W
1/16 W
1/2 W
1/2 W
1/16 W
1/8 W
1/16 W
1/4 W
1/2 W
1/16 W
100 A
±1%
±5%
±1%
±1%
±5%
±5%
±1%
±1%
±1%
±1%
20pF load,
150 ESR
1/2 W
50 ppm
250 V
10 V
1/16 W
1/16W
1/8 W
1/8 W
16 V
16 V
±10%
±20%
±5%
±5%
±5%
±5%
±20%
±20%
Dielectric
X7R
X7R
Al
Electrolytic
X7R
X7R
X7R
X7R
NPO
X7R
Tant
SOD-123
Rev. 0.6
0805
C0603
RC0603
RC0603
0805
0805
0603
0603
16pin SOIC
X7R
X7R
X7R
X7R
Manufacturer Number
GA342D1XGF330JY02L
C0805X7R251-103MNE
NACE1R0M50V
Manufacturer
Murata
Venkel
NIC Components
C0603X7R160-104MNE
C0603X7R500-272MNE
GA342QR7GD681KW01L
C0603X7R160-103MNE
C0603NPO160-330JNE
C0603X7R160-104MNE
TA010TCM105-KAL
HD04-T
BLM18AG601S
TSM-108-01-T-DV
Venkel
Venkel
Murata
Venkel
Venkel
Venkel
Venkel
Diodes, Inc.
MuRata
Samtec
68000-403
Berg
MMBTA42LT1
MMBTA92LT1
MMBTA06LT1
P3100SB
CR1210-2W-1071FT
CR0402-16W-150JT
CR1210-2W-3651FT
CR1210-2W-2491FT
CR0402-16W-104JT
CR0805-8W-206JT
CR0402-16W-1004FT
CR1206-4W-5360FT
CR1210-2W-73R2FT
CR0603-16W-000F
Si3018/10-FS
559-FOXSD049-20
OnSemi
OnSemi
OnSemi
Teccor
Venkel
Venkel
Venkel
Venkel
Venkel
Venkel
Venkel
Venkel
Venkel
Venkel
Silicon Laboratories
Silicon Laboratories
CTS Reeves
MMSZ43T1
OnSemi
C0805X7R251-121KNE
C0603C124K
CR0603-16W-132JT
CR0603-16W-000J
CR0805-8W-156JT
CR0805-8W-515JT
C0603X7R160-104MNE
C0603X7R160-104MNE
Si2401-KS
Venkel
Kemet
Venkel
Venkel
Venkel
Venkel
Venkel
Venkel
Silicon Laboratories
Rev. 0.6
1
2
2.1 mm Power jack
J4
1
2
1
2
3
4
Power Connector
"7-12V AC or DC"
J3
M2
M1
SG
DTR(i)
TXD(i)
RXD(o)
CD(o)
J5
USB Type B
5
9
8
7
6
B3
DB9-RS232_1
J1
RD(o)
CTS(o)
RTS(i)
DSR(o)
RS-232
USB
11
10
5
4
3
2
1
V2
V1
USB_+5
SW PUSHBUTTON
S1
"RESET"
RESETb
PowerBlock
R1
NI
0
B2
JP7
VCC
"Mux off"
OE
"USB"
VD
EESD_H
"AUTOBAUD"
JP9
R10
10k
1
3
5
7
9
11
13
15
JP3
"EEPROM"
R11
10k
TXCLK_H
for JP6
Si2400 only
nc or GPIO2
GPIO3 or nc
GPIO1 or GPIO3
CLKOUT or nc
GPIO4 or AOUT
Si2456/57
DCD or EEIO
RI or TXCLK
ESC or X
RTS or RXCLK
INT or AOUT
14
13
11
10
8
7
5
4
DC D_H
R12
10k
"27MHz CLK"
JP11
JP6
15
12
9
6
3
Si2401
GPIO2 or nc
nc or GPIO5
GPIO3 or nc
nc or GPIO1
nc or GPIO4
Place White Dot
Silkscreen Near
Pin 1
AOUT_H
"ESC"
"EESD"
"RIb"
"INT"
"AOUT"
2
DC D_H
"RXCLK"
"DCDb"
1
2
4
6
8
10
HEADER 5X2
"PCM"
R28
10k
"Si2401 27MHz CLK"
JP12
AOUT_H
Si2401 Reset Options
"JP6: recommended settings"
"Si2400: 2-3, 4-5, 8-9, 11-12, 13-14"
"Si24xx: 1-2, 4-5, 7-8, 10-11, 13-14"
"Si2401: 1-2, 5-6, 7-8, 11-12, 14-15"
"Si24xx alt: 1-2, 5-6, 7-8, 11-12, 14-15"
Table on silkscreen
RS-232 Function
Info
CD
Info
RI
Ctrl
DTR
Ctrl
RTS
Info
DSR
JP10
2
4
6
8
10
12
14
16
R2
HEADER 8X2
Place White Dot
Silkscreen Near
Pin 1
"CLKOUT"
TXCLK_H "TXCLK"
"RTSb"
"RXD"
"TXD"
"CTSb"
"RESETb"
RESETb
Si24xx Reset Options
JP5
DSR_M
RTS_M
DTR_M
RI_M
CD_M
RXD_M
TXD_M
CTS_M
UART Mux
RESETb
1
3
5
7
9
R6
R7
B5
AOUT
+3.3V
Speaker
B6
ESC_H
EESD_H
RI_H
INT_H
AOUT_H
RXCLK_H
DCD_H
CLKOUT_H
TXCLK_H
RTS_H
RXD_H
TXD_H
CTS_H
RESET_H
0
0
+3.3V VCC
SPEAKER
C32
0
SDO
JP13
J2
VCC
"EEPROM"
HOLD
WP
CS
SCLK
SDI
RCA JACK
NI
8
7
3
1
6
5
U9
R27
RING
TIP
Daughter Card Socket
EESD_H
EECS_H
EECLK_H
EESD_H
RESET
Right angle connector on board edge
JP4
Figure 13. Motherboard Top-level Schematic
JP7 for measuring
current to modem (i.e.
VD goes to modem only)
R8
1.3k
JP8
RI_U
RI_U
DTR_U
DTR_U
CD_U
DSR_U
CD_U
RTS_U
DSR_U
CTS_U
CTS_U
RTS_R
TXD_U
TXD_U
RI_T
RI_T
RXD_U
CD_T
DTR_T
DSR_T
RTS_T
CTS_T
TXD_T
RXD_T
RXD_U
VD
+3.3V
USB
USBUSB+
B4
CD_T
DTR_T
DSR_T
RTS_T
CTS_T
TXD_T
RXD_T
RS-232
RD_R
CTS_R
RTS_R
DSR_R
B1
S
DTR_R
TXD_R
RXD_R
CD_R
2
R9
0
"TIP"
TP7 "RING"
TP8
1
2
3
4
5
6
7
8
9
10
11
12
Speaker
LS1
RJ11
Si2493/57/34/15/04
Global ISOmodem-EVB
17
18
C1
1.0 uF
VD
+
FB2
C2
C3
470 pF 1.0 uF
CLKOUT_H
TXCLK_H
RTS_H
RXD_H
TXD_H
CTS_H
RESET_H
EECS_H
R26
1.3k
2
4
6
8
10
12
14
16
C4
470 pF
SOCKET 8X2
1
3
5
7
9
11
13
15
JP1
Place White Dot
Silkscreen Near Pin 1
Rev. 0.6
Si2401
NC
GPIO1
GPIO5
GPIO2
NC
GND
TXD
GPIO3
RXD
NC
CTS
NC
RESET
NC
VD
GPIO4
JP2
RING
TIP
TIP and RING minimum 20 mils wide and as far as possible from ground.
Connectors for ISOModem module.
ESC_H
EESD_H
RI_H
INT_H
AOUT_H
RXCLK_H
DCD_H
EECLK_H
Figure 14. Daughter Card Interface Schematic
Table NOT on silkscreen
JP1/3
Si2400
Si24xx
1
NC
CLKOUT/A0/EECS
2
NC
EECLK/D5/RXCLK
3
NC
alt_RIb/TXCLK/D6
NC
4
DCD/D4
CLKOUT
5
RTS/D7
GND
GND
6
TXD
TXD/WR
7
GPIO1
ESC/D3
8
RXD
RXD/RD
9
GPIO2
EESD/D2
10
CTS
CTS/CS
11
GPIO3
RI/D1
12
RESET
13
RESET
GPIO4
14
INT/D0
15
VD
VD
16
AOUT
AOUT/INT
Net names correspond to
Si24xx. See table for
Si2400 equivalents
+
R17
10k
VD
Si2493/57/34/15/04
Global ISOmodem-EVB
V2
V1
D2
D4
D1
D3
+
C6
470 uF
C7
0.1 uF
1
IN
U1
Rev. 0.6
TP6
TP5
TP4
TP3
Standoffs in each corner of board.
1.6
R13
USB_+5
1
2
7805
"GND"
"GND"
"GND"
C8
10 uF
D5
C9
0.1 uF
BAT54C
VCC
4
3
2
1
U2
FB/NC
OUT(2)
OUT(1)
TPS77601DR
IN(2)
IN(1)
EN
GND RESET/PG
TP16
"+5V"
5
6
7
8
R16
110k
R14
196k
C10
10 uF
TP17
"+3.3V"
Figure 15. Power Supply Schematic
TP18
TP2
TP1
3
FB1
OUT
10 nF
C5
GND
2
USB_VCC
+3.3V
VD
C11
470 pF
R15
3
2
RST
0
DS1818
GND
VCC
U3
OPTIONAL
1
RESET
Si2493/57/34/15/04
Global ISOmodem-EVB
19
Rev. 0.6
TXD_R
RTS_R
DTR_R
DSR_R
RD_R
CD_R
CTS_R
RXD_R
D6
MMBZ15VDC
D7
MMBZ15VDC
D8
MMBZ15VDC
D9
MMBZ15VDC
MMBZ15VDC
D10
MMBZ15VDC
D12
+
MMBZ15VDC
D13
C13
470 pF
C14
0.1 uF
R31
10k
NI
R30
10k
VCC
1.0 uF
+ C15
R33
10k
R32
10k
NI
Figure 16. RS-232 Interface Schematic
MMBZ15VDC
D11
C12
1.0 uF
FB3
C17
C16
14
15
11
9
8
12
10
7
6
5
4
27
SHDN
MBAUD
R3IN
R2IN
R1IN
T5OUT
T4OUT
T3OUT
T2OUT
T1OUT
V-
V+
26
VCC
GND
20
2
VCC
MAX3237
EN
R3OUT
R2OUT
R1OUT
R1OUTB
T5IN
T4IN
T3IN
T2IN
T1IN
C2-
C2+
C1-
C1+
U4
13
18
20
21
16
17
19
22
23
24
3
1
25
28
R29
10k
TP10
C19
C18
TP11
TXD_T
RTS_T
DTR_T
DSR_T
RI_T
CD_T
CTS_T
RXD_T
Si2493/57/34/15/04
Global ISOmodem-EVB
Si2493/57/34/15/04
Global ISOmodem-EVB
VCC
R3
3
7
2
AOUT
47 k
C21
R4
3k
820 pF
-
4
8
0.1 uF
+
C24
5
1
U10
LM386M-1
C23
+
C20
6
1
C22
0.1 uF
2
SPEAKER
100 uF
0.1 uF
R5
10
Figure 17. Audio Amplifier Schematic
"CTS_U"
TP12
"RXD_U"
TP13
U7
TXD_U
RXD_U
RTS_U
CTS_U
2
5
11
14
1B1
2B1
3B1
4B1
1A
2A
3A
4A
4
7
9
12
TXD_T
RXD_T
RTS_T
CTS_T
3
6
10
13
1B2
2B2
3B2
4B2
OE
S
15
1
TP15
"CTS_T"
VCC
R18
10k
74CBT3257/SO
TP14
"RXD_T"
TXD_M
RXD_M
RTS_M
CTS_M
S
O\E\
U8
DTR_U
DSR_U
CD_U
RI_U
2
5
11
14
1B1
2B1
3B1
4B1
1A
2A
3A
4A
4
7
9
12
DTR_T
DSR_T
CD_T
RI_T
3
6
10
13
1B2
2B2
3B2
4B2
OE
S
15
1
DTR_M
DSR_M
CD_M
RI_M
R19
10k
74CBT3257/SO
Figure 18. UART Mux Schematic
Rev. 0.6
21
Si2493/57/34/15/04
Global ISOmodem-EVB
USB_VCC
U5
C29
1.0 uF
+
C31
8
VBUS
7
REGIN
6
R20
4.7 k
RST
9
SUSPEND
12
SUSPEND
11
RI
DCD
DTR
DSR
TXD
RXD
RTS
CTS
2
1
28
27
26
25
24
23
VDD
TP19
RI_U
3
GND
U11
1
5
5
4
USB-
2
3
DD+
CD_U
DTR_U
DSR_U
TXD_U
RXD_U
4
CP2101/02
RTS_R
GMS05F
USB+
CTS_U
Figure 19. USB Interface Schematic
22
Rev. 0.6
Si2493/57/34/15/04
Global ISOmodem-EVB
5. Bill of Materials: Si24xx Motherboard
Value
1.0 uF
470 pF
10 nF
470 uF
0.1 uF
10 uF
0.1 uF
Rating
10 V
25V
16 V
25 V
25 V
16V
16 V
Tolerance
±10%
±5%
±10%
±20%
±10%
±10%
±20%
820 pF
100 uF
DIODE
BAT54C
MMBZ15VDC
50 V
16 V
30 V
±5%
±10%
0.5 A
Item
1
2
3
4
5
6
7
Quantity
5
4
1
1
2
2
10
8
9
10
11
12
1
1
4
1
8
13
14
15
16
17
3
1
1
1
1
18
8
19
20
21
1
1
1
JP5,JP7,JP8,JP9,JP10,JP
11,JP12,JP13
JP6
J1
J2
22
1
J3
23
1
J4
24
25
26
27
28
29
30
31
32
1
1
1
6
1
1
1
2
10
33
34
35
36
37
1
1
1
1
1
38
39
40
3
4
8
41
42
43
44
45
46
2
1
1
1
1
1
2.1 mm Power
jack
J5
USB Type B
LS1
Speaker
RJ11
MTJG-2-64-2-2-1
R2,R6,R7,R9,R15,R27
0
R3
47 k
R4
3k
R5
10
R26,R8
1.3k
R10,R11,R12,R17,R18,R1
10k
9,R28,R29,R30,R33
R13
1.6
R14
196k
R16
110k
R20
4.7 k
S1
SW
PUSHBUTTON
TP1,TP2,TP18
Black Test Point
TP3,TP4,TP5,TP6
Stand off
TP7,TP8,TP10,TP11,TP12, Blue Test Point
TP13,TP14,TP15
TP16,TP17
Red Test Point
TP19
Blue Test Point
U1
7805
U2
TPS77601DR
U3
DS1818
U4
MAX3237
47
48
49
50
51
1
2
1
1
1
U5
U8,U7
U9
U10
U11
Reference
C1,C3,C12,C15,C29
C2,C4,C11,C13
C5
C6
C7,C9
C10,C8
C14,C16,C17,C18,C19,C2
0,C22,C23,C31,C32
C21
C24
D1,D2,D3,D4
D5
D6,D7,D8,D9,D10,D11,D1
2,D13
FB1,FB2,FB3
JP1
JP2
JP3
JP4
Foot Print
3216_EIAA
CC0805
CC0603
C5X10MM-RAD
CC0805
CC1206
CC0603
Dielectric
Tant
X7R
X7R
Electrolytic
X7R
X7R
X7R
Manufacturer Number
TA010TCM105-KAL
C0805C471J5GACTU
C0603X7R160-103KNE
UVX1E471MPA
C0805X7R250-104KNE
C1206X7R100-106KNE
C0603X7R160-104MNE
Manufacturer
Venkel
TTI
Venkel
NIC Components
Venkel
Venkel
Venkel
CC0805
NPO
C2.5X6.3MM-RAD Electrolytic
SOD123
SOT-23
SOT-23
C0805COG500-821JNE
UVX1C101MEA1TD
MBR0530T1
BAT54C
MMBZ15VDC
Venkel
Nichicon
Motorola
Diodes Inc.
General Semiconductor
Ferrite Bead
SOCKET 8X2
4X1 Socket
HEADER 8X2
HEADER 5X2
RC0805
CONN2X8
CONN4[6238]
CONN2X8
CONN2X5[6238]RA
BLM21A601S
SSW-108-01-T-D
SSW-104-01-T-S
517-6121TN
TSW-105-25-T-D-RA
Murata
Samtec
Samtec
Samtec
Samtec
2X1 Header
CONN2[6040]
517-611TN
Berg
3x5 Header
DB9-RS232_1
RCA JACK
CONN3X5
CONN9[6543]DBF
CONN2[12090]RC
A
TB2[12065]TSA
K22-E9S-030
16PJ097
Kycon
Mouser
506-5ULD02
Mouser
Power Connector
CP2101/02
74CBT3257/SO
PDIP Socket
OP-AMP
GMS05F
1/10 W
1/10 W
1/10 W
1/10 W
1/16 W
1/16 W
±5%
±5%
±1%
±5%
±5%
1/8 W
-0.05
1/10 W
±5%
CONN3[175120]P
WR
CONN-USB-B
HCM12A[9052]
RJ11[6238]DUAL
RC0603
RC0805
RC0805
RC0805
RC0603
RC0603
ADC-002-1
Adam Tech
897-30-004-90-000000
HCM1206A
MTJG-2-64-2-2-1
CR0603-10W-000JT
NRC10J473TR
NRC10J302TR
NRC10F10R0TR
CR0603-16W-132JT
CR0603-16W-103JT
Mill-Max
JL World
Adam Tech
Venkel
NIC Components
NIC Components
NIC Components
Venkel
Venkel
RC1206
RC0805
RC0805
RC0805
SW4[6240]PB
CR1206-8W-1R6JT
MCHRIDEZHFX1963E
CR21-114J-T
NRC10J472TR
101-0161
Venkel
Classic Comp
Classic Comp
NIC Components
Mouser
CONN1[6040]
MH-125
CONN1[6040]
151-203
Mouser
151-205
Mouser
CONN1[6040]
CONN1[6040]
TO-220-LD
SO8
SOT-23
SOP65X780-28N
151-207
151-207
uA7805CKC
TPS77601DR
DS1818-10
MAX3237E (Sipex
SP3238E 2nd source)
CP2101/02
SN74CBT3257DBR
210-93-308-41-001000
LM386M-1
GMS05F
Mouser
Mouser
Texas Instruments
Texas Instruments
Dallas Semiconductor
Maxim
28-pin MLP
SOP65X780-16N
DIP8-SKT
SO8
SOT-23-5N
Rev. 0.6
Silicon Laboratories
Texas Instruments
Mill-Max
National Semi
Vishay
23
Figure 20. Daughter Card Component Side Silkscreen
Si2493/57/34/15/04
Global ISOmodem-EVB
24
Rev. 0.6
Figure 21. Daughter Card Solder Side Silkscreen
Si2493/57/34/15/04
Global ISOmodem-EVB
Rev. 0.6
25
Figure 22. Daughter Card Component Side Layout
Si2493/57/34/15/04
Global ISOmodem-EVB
26
Rev. 0.6
Figure 23. Daughter Card Solder Side Layout
Si2493/57/34/15/04
Global ISOmodem-EVB
Rev. 0.6
27
Figure 24. Motherboard Silkscreen
Si2493/57/34/15/04
Global ISOmodem-EVB
28
Rev. 0.6
Figure 25. Motherboard Silkscreen (Back Side)
Si2493/57/34/15/04
Global ISOmodem-EVB
Rev. 0.6
29
Figure 26. Motherboard Component Layout
Si2493/57/34/15/04
Global ISOmodem-EVB
30
Rev. 0.6
Figure 27. Motherboard Solder Side Layout
Si2493/57/34/15/04
Global ISOmodem-EVB
Rev. 0.6
31
Figure 28. Motherboard Ground Plane Layout
Si2493/57/34/15/04
Global ISOmodem-EVB
32
Rev. 0.6
Figure 29. Motherboard Power Plane Layout
Si2493/57/34/15/04
Global ISOmodem-EVB
Rev. 0.6
33
Si2493/57/34/15/04
Global ISOmodem-EVB
6. Complete Design Package on CD (See Sales Representative for Details)
Silicon Laboratories can provide a complete design package of the Si2493/57/34/15/04-EVB including the
following:
OrCad Schematics
Gerber Files
BOM
Documentation
Please contact your local sales representative or Silicon Laboratories headquarters sales for ordering information.
34
Rev. 0.6
Si2493/57/34/15/04
Global ISOmodem-EVB
DOCUMENT CHANGE LIST
Revision 0.2 to Revision 0.3
Updated Figure 21, “Daughter Card Solder Side
Silkscreen,” on page 25
Updated Figure 22, “Daughter Card Component
Side Layout,” on page 26
Updated Figure 23, “Daughter Card Solder Side
Layout,” on page 27
Updated “Bill of Materials: Si24xx Daughter Card”
Revision 0.3 to Revision 0.4
Changed from Rev.1.0 to Rev.1.1 Daughter Card
Revision 0.4 to Revision 0.5
Changed from Rev.3.1 to Rev.3.2 Motherboard
Revision 0.5 to Revision 0.6
Changed from Rev.1.1 to Rev.1.2 Daughter Card
Added FS (SOIC) Package Option
Rev. 0.6
35
Si2493/57/34/15/04
Global ISOmodem-EVB
CONTACT INFORMATION
Silicon Laboratories Inc.
4635 Boston Lane
Austin, TX 78735
Tel: 1+(512) 416-8500
Fax: 1+(512) 416-9669
Toll Free: 1+(877) 444-3032
Email: [email protected]
Internet: www.silabs.com
The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice.
Silicon Laboratories assumes no responsibility for errors and omissions, and disclaims responsibility for any consequences resulting from
the use of information included herein. Additionally, Silicon Laboratories assumes no responsibility for the functioning of undescribed features
or parameters. Silicon Laboratories reserves the right to make changes without further notice. Silicon Laboratories makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Silicon Laboratories assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Silicon Laboratories products are not designed, intended, or authorized for use in applications intended to
support or sustain life, or for any other application in which the failure of the Silicon Laboratories product could create a situation where personal injury or death may occur. Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized application, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages.
Silicon Laboratories, Silicon Labs, and ISOmodem are trademarks of Silicon Laboratories Inc.
Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders.
36
Rev. 0.6
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