null  null
IN Rochawell semiconductor Systems
RCV336ACF/SVD Integrated DSVD, AudioSpan
Speakerphone, Data/Fax Modem Device Set for Desktop Applications
Introduction
The Rockwell RCV336ACF/SVD Modem Device Set
supports high speed data high speed fax, DSVD,
AudioSpan, speakerphone, audio/voice, and VoiceView
operation. lt is intended for use with dial-up telephone
lines in the U.S. or world-wide and is offered in eight
device models (Table 1).
The RCV336ACF/SVD modem and an optional DSVD
Coprocessor device set allows design of a common PC
board providing data and fax modem, DSVD, AudioSpan,
speakerphone, and audio/voice operation with handset,
headset, or speakerphone (microphone and speaker).
DSVD operation can be defeatured by not installing the
DSVD Coprocessor device.
AudioSpan (analog simultaneous audio/voice and data)
operation supports data rates with audio of 4.8 kbps in
V.61 modulation, 4.8 to 9.6 kbps in ML144 modulation, or
4.8 to 14.4 kbps in ML288 modulation.
DSVD (digital simultaneous voice and data) operation
using the optional DSVD Coprocessor supports speech
coding plus data rate of 8.0 kbps in G.729A mode per
ITU-T V.70 or 8.5 kbps in DigiTalk™ mode per DSVD
Special Interest Group (SIG).
SVD models support position independent, full-duplex
speakerphone (FDSP).
As a data modem, the modem operates at line speeds to
33600 bps. Error correction (V.42/MNP 2-4) and data
compression (V.42 bis/MNP 5) maximize data transfer
integrity and boost average data throughput up to
115.2 kbps. Non-error-correcting mode is also supported.
The modem supports fax Group 3 send and receive rates
up to 14400 bps and supports T.30 protocol.
In voice/audio mode, enhanced ADPCM coding and
decoding supports efficient digital storage of voice/audio
using 2-bit or 4-bit per sample compression and
decompression with a 7200 Hz sample rate. This mode
supports digital telephone answering machine (DTAM),
voice annotation, and audio recording and playback
applications.
AccelerATor kits and reference designs are available to
minimize application design time and costs. PC-based
“ConfigurACETM II for Windows” software allows MCU
firmware to be customized to application and country
requirements.
IEEE
Features
e AudioSpan (simultaneous audio/voice and data)
— ITU-T V.61 modulation (4.8 kbps data plus audio)
- ML144 modulation (4.8 to 9.6 kbps data plus audio)
- ML288 modulation (4.8 to 14.4 kbps data plus audio)
— Audio/silence detection (ML144) and handset echo
cancellation
— Handset, headset, or half-duplex speakerphone
e DSVD (digital simuitaneous voice and data) (option)
— ITU V.70 (8.0 kbps speech coding plus data in
G.729A mode)
DigiTalk (8.5 kbps speech coding plus data)
Voice/silence detection and handset echo cancellation
— Robust DSVD timing recovery
Handset, headset, or half-duplex speakerphone
Full-duplex speakerphone (FDSP) mode (option)
Acoustic and line echo cancellation
Microphone gain and muting
Speaker volume control and muting
— Room monitor
e Data modem throughput up to 115.2 kbps
— 33.6 kbps, V.34, V.32 bis, V.32, V.22 bis, V.22A/B,
V.23, and V.21; Bell 212A and 103
— V.42 LAPM, MNP 2-4, and MNP 10 error correction
— V.42 bis and MNP 5 data compression
— MNP 10EC™ enhanced cellular performance
— Hayes AutoSync (option)
e Fax modem send and receive rates up to 14400 bps
— V.33, V.17, V.29, V.27 ter, and V.21 channel 2
e Voice/audio mode (option)
— Enhanced ADPCM compression/decompression
— Tone detection/generation and call discrimination
— Concurrent DTMF detection
— 8-bit monophonic audio data encoding at 11.025 kHz
or 7200 Hz
¢ VoiceView alternating voice and data (option)
« World-class operation (option)
— Call progress, blacklisting, multiple country support
e Communication software compatible AT command sets
« NVRAM directory and stored profiles
e Built-in DTE interfaces with speed up to 115.2 kbps
— Parallel 16550A UART-compatible interface
— Serial ITU-T V.24 (EIA/TIA-232-E)
e Supports Rockwell PnP ISA Bus Interface Device
e Supports Serial PnP interface per Plug and Play
External COM Device Specification, Rev 1.00
e Serial async data; parallel async data
e Caller ID and distinctive ring detect
* Packages:
— RCV336ACF/SVD Modem: 68-pin PLCC
— DSVD Coprocessor: 68-pin PLCC
e +5V operation
|
Data Sheet
Preliminary
Order No. MD 163
www .DataSheet.in
RCV336ACF/SVD
Integrated DSVD, AudioSpan, Speakerphone, Modem Device Set
Table 1. Modem Models and Functions
Devices Used Supported Functions
DSVD V.34 Data/
Modem Coprocessor | V.17 Fax/ Voice/Audio/
Model (R6759/R6760) (R6715) AudioSpan FDSP DSVD VoiceView W-Class
RCV336ACF/SVD Y Y S S S S --
RCV336ACF/SVD Y N S S - S --
RCV336ACFW/SVD Y Y S S S S S
RCV336ACFW/SVD Y N S ‚Ss - S S
RCV336ACF Y N S - -- 5 --
RCV336ACFW Y N S ~~ -- S S
RC336ACF Y N S -- -- -- -
RC336ACFW Y N S -- -- - S
Notes:
1. Legend:
Y = Device required.
N = Device not required.
S = Function supported.
O = Function supported with optional device (e.g., DSVD function requires optional DSVD Coprocessor).
-- = Function not supported.
2. Model options:
SVD Speakerphone and, with DSVD Coprocessor, DSVD.
V Voice, audio, and VoiceView.
W World-class (W-class).
3. Supported functions (S = Supported; — = Not supported):
AudioSpan Analog simultaneous audio/voice and data.
FDSP Full-duplex speakerphone.
DSVD Digital simultaneous voice and data.
Voice/Audio Voice and audio functions.
Voice View Voice View alternating voice and data.
W-Class World-class functions supporting multiple country requirements.
MNP 10EC, DigiTalk. and ConfigurACE are trademarks of Rockwell International.
MNP is a trademark of Microcom Systems, Inc.
VoiceView is a registered trademark of Radish Communications, inc.
Hayes is a trademark of Hayes Microcomputer Products, Inc.
www.DataSheet.in
Integrated DSVD, AudioSpan, Speakerphone, Modem Device Set
Description
General
The RCV336ACF/SVD device set provides the processing
core for a complete system design featuring data/fax
modem, DSVD, AudioSpan, speakerphone, voice/audio,
and VoiceView support depending on model (Table 1).
For modem/AudioSpan/speakerphone/voice/audio
operation, only the RCV336ACF/SVD modem device is
needed. The OEM adds a crystal, discrete components,
and a telephone line/telephone/audio interface circuit to
complete the system. The standard crystal frequency is
52.416 MHz (alternatively, a modem model may be
ordered for use with a 56.448 MHz crystal).
The modem is packaged in a 68-pin PLCC.
The modem is the full-featured, self-contained data
modem/fax modem/voice/audio/speakerphone solution
shown in Figure 1 (serial DTE interface) and Figure 2
(parallel host interface). Dialing, call progress, telephone
line interface, AudioSpan, DSVD (with the DSVD
Coprocessor), speakerphone, voice/audio, and VoiceView
functions are supported and controlled through the AT
command set. The audio signal interface is illustrated in
Figure 3.
The modem connects to the DTE via a V.24 (EIA/TIA-
232-E) serial interface or to a host via a parallel
microcomputer bus depending on modem model.
The DSVD Coprocessor is required for DSVD operation.
The OEM adds a 50.688 MHz crystal and a few discrete
components.
The DSVD Coprocessor is packaged in a 68-pin PLCC.
Data/Fax Modes
In data modem modes, the modem can operate in 2-wire,
full-duplex, asynchronous modes at line rates up to 33600
bps. Data modem modes perform complete handshake
and data rate negotiations. Using V.34 modulation to
optimize modem configuration for line conditions, the
modem can connect at the highest data rate that the
channel can support from 33600 bps to 300 bps with
automatic fallback. Automode operation in V.34 is
provided in accordance with PN3320 and in V.32 bis in
accordance with PN2330. All tone and pattern detection
functions required by the applicable ITU or Bell standard
are supported.
In fax modem modes, the modem fully supports Group 3
facsimile send and receive speeds of 14400, 12000,
9600, 7200, 4800, or 2400 bps. Fax modem modes
support Group 3 fax requirements. Fax data transmission
and reception performed by the modem is controlled and
monitored through the fax ElA-578 Class 1 command
interface. Fuli HDLC formatting, zero insertion/deletion,
and CRC generation/checking is provided.
Both transmit and receive fax data are buffered within the
modem. Data transfer to and from the DTE is flow
controlled by XON/XOFF and RTS/CTS.
RCV336ACF/SVD
AudioSpan Modes
AudioSpan provides full-duplex analog simultaneous
audio/voice and data over a single telephone line.
AudioSpan can send any type of audio waveform,
including music. Data can be sent with or without error
correction. The audio/voice interface can be in the form of
a headset, handset, or a microphone and speaker (half-
duplex speakerphone).
V.61 Modulation. AudioSpan can operate in V.61
modulation at a data rate with audio of 4800 bps.
ML144 Modulation. AudioSpan can operate in ML144
(V.32) modulation at a 4.8 to 9,6 kbps data rate with
audio where lower data rates provide higher audio quality.
ML288 Modulation. AudioSpan can operate in ML288
(V.34 type) modulation at a 4.8 to 14.4 kbps data rate
with audio where lower data rates provide higher audio
quality.
DSVD Mode (SVD Models Only)
DSVD provides fuil-duplex digital simultaneous voice and
data over a single telephone line. DSVD uses a ITU-T
V.70 G.729A or DigiTalk voice codec to code (compress)
and decode (decompress) speech in the DSVD
Coprocessor. The voice interface can be in the form of a
headset, handset or a microphone and speaker (half-
duplex speakerphone).
DSVD modes include voice activated coding. The
decoder timing recovery algorithm compensates for clock
skew, asynchronous host-to-decoder data transfer delay,
intervening variable length data block transmission delay,
and loss of encoded speech data.
Handset echo cancellation supports handset use through
a hybrid.
G.729A Mode. DSVD can operate in G.729A mode at a
voice codec rate of 8.0 kbps.
DigiTalk Mode. DSVD can operate in DigiTalk mode at a
voice codec rate of 8.5 kbps.
Speakerphone Mode (SVD Models Only)
The speakerphone mode features an advanced
proprietary speakerphone algorithm which supports full-
duplex voice conversation with both acoustic and line
echo cancellation. Parameters are constantly adjusted to
maintain stability with automatic fallback from full-duplex
to pseudo-duplex operation. The speakerphone algorithm
allows position independent placement of microphone
and speaker.
The speakerphone mode provides hands-free fuli-duplex
telephone operation under host control. The host can
separately control volume, muting, and AGG in
microphone and speaker channels.
Modem Firmware
Modem firmware performs processing of general modem
control, command sets, fax Class 1, AudioSpan, DSVD,
speakerphone, voice/audio/TAM, error correction, data
compression, and DTE/host interface functions (see
Table 1).
www.DataSheet.in
RCV336ACF/SVD Integrated DSVD, AudioSpan, Speakerphone, Modem Device Set
Configurations of the modem firmware are provided to
support parallel host bus interface operation or serial DTE
interface operation.
The modem firmware is provided in object code form for
the OEM to program into external ROM. The modem
firmware may also be provided in source code form under
a source code addendum license agreement.
Hardware Interface Signals
The modem (R6759) pin assignments for the 68-pin
PLCC with serial interface are shown in Figure 4.
The modem {R6760) pin assignments for the 68-pin
PLCC with parallel interface are shown in Figure >.
The DSVD Coprocessor (R6715) pin assignments for the
68-pin PLCC are shown in Figure 6.
Electrical and Environmental Specifications
The current and power requirements are listed in Table 2.
The absolute maximum ratings are listed in Table 3.
Additional Information
Additional information is described in the
RCV336ACF/SVD Designer's Guide (Order No. 1105)
and in the AT Command Reference Manual (Order No.
1048).
www.DataSheet.in
E NM A FU
integrated DSVD, AudioSpan, Speakerphone, Modem Device Set RCV336ACF/SVD
RCV336ACF/SVD DEVICE SET
SERIAL Co
DTE/ |+—— - ;
INTERFACE RCV336ACF/SVD _ TELEPHONE LINE
MODEM НЕ
16760] : TELEPHONE TEL HANDSET
(68-PIN PLCC) | DSVD HANDSET/
256 x B COPROCESSOR UDIO
SERIAL He {R6715] - INTERFACE
NVRAM — La : (68-PIN PLCC) CIRCUIT HEADPHONE/
(OPTIONAL) SPEAKER
; -—— MICROPHONE
32K x 8
RAM
128K x 8
| ROM
MD163F1 BD-Ser
Figure 1. Block Diagram - Serial DTE Interface
RCV336ACF/SVD DEVICE SET
PARALLEL N :
HOST - т TELEPHONE/
BUS — — TELEPHONE
INTERFACE RCV336ACF/SVD _ TELEPHONE! I= LINE
1R67591 a ‚ LINE/
675
(68-PIN PLCC) DSVD Rr TEL HANDSET
256 x 8 COPROCESSOR |
56 x AUDIO
SERIAL |} A INTERFACE
NVRAM 1 (68-PIN PLCC) ; CIRCUIT HEADPHONE/
(OPTIONAL) SPEAKER
: - —— MICROPHONE
A НД. J
32K x 8
RAM
- 128K x 8
ROM
MD163F2 BD-Ser
Figure 2. Block Diagram - Parallel Host interface
www .DataSheet.in
RCV336ACF/SVD Integrated DSVD, AudioSpan, Speakerphone, Modem Device Set
—- LCS
RINGD
„VOICE
-OH
vC
TXA1
| HYBRD
«а RIN XFRMR OH RELAY ROT TEL LINE
TELOUT N BC
"HANDSET yu
RCV336ACF/SVD | TELIN HYBRID y
MODEM ‘ De TEL HANDSET
DEVICE SET VOICE Го
RELAY es)
TELEPHONE LINE/TELEPHONE HANDSET
INTERFACE CIRCUIT
MICM 1
hl 1) |
SPKV/SPKM - SOUNDUCER = HEADPHONE
:. (OPTIONAL) |
AUDIO/HEADPHONE
INTERFACE CIRCUIT
MD163F3 ASF
Figure 3. Typical Audio Signal Interface
EN 7811073 0025321 497 NM мет?
Integrated DSVD, AudioSpan, Speakerphone, Modem Device Set
-RAMSEL =
~TMIND
“WRITE E
-READ OC
-DSR C
-CTS El
-RLSO CO
-DRSOUT C]
-AAIND C
“Rl C
-TM £
-ADL I
-DTRIND E
TELOUT OC
vc El
VREF CJ
TELIN OF
9 [1 -ROMSEL
8 [1 -VOICE
7 5 -0H
6 CI A16
5D) A15
4 FI Ai4
3 DJ A413
2 [3 А12
1 El A11
68 [1 A10
67 FJ A9
66 El] A8
65 1 A7
64 [1 AG
63 {J AS
62 [ A4
61 [1] A3
O
RIN £3 30
vDD OJ 31
TXAt L332
SVDIRQ 33
VDD [Cj 38
MICV £927
MICM C4 26
~RES [435
GND 0437
NVMDATA [139
-SVDCS [136
-TXD C}40
SPKV © 29
AGND С 34
~RXD O41
МУМС К О 42
Do 43
ООО
DUUVULUUO
MD163F04 L68-Ser
Figure 4. Modem Pin Signals - 68-Pin PLCC - Serial DTE Interface
-RAMSEL CL!
HINT CJ
~WRITE CO
“READ СС
HD0 OC
НО!
ног С.
HD3 CC
HD4 C]
HOS Cl
H06 C
НО” Cl
HAD DO
TELOUT OJ
vC O
VREF OD
TELIN C
x ~ROMSEL
3
2
1
8
67
8 5) -VOICE
7 4 -OH
6 CJ A16
36
37
VOD L1 38
RIN [14 30
NVMDATA CH 39
vDD Cd 31
TXA1 Cd 32
SVDIRQ © 33
HAZ CJ 40
HA1 [J 41
-RES 5 35
NVMCLK (] 42
AGND El 34
~SVDCS
МСУ } 27
MICM Ed 28
SPKv (] 29
GND
DO CH 43
UDUULDUU
UGOUOUVUUL
MD+63F05 Lé4-Par
Figure 5. Modem Pin Signals- 68-Pin PLCC - Parallel Host Interface
RCV336ACF/SVD
MD163
EN 7811073 0025322 306 IM
RCV336ACF/SVD Integrated DSVD, AudioSpan, Speakerphone, Modem Device Set
Lu
E
NT o-wotnN
ОЗ о-моч ооо
>7 ННОВа 2
goonnonnonononnonnn
7 DONONTAON- QRO TON \
IACLK EY 10 60 EJ NC
-cs À 41 O 59 Ej -ENS5 (GP17)
-READ CY 12 58 19 NC
VDD 1 13 57 E) SRAQUT
NC Cd 14 56 EJ SRIIO
NC (GP15) C 15 55 FJ SAICLK
NC (GP14) CE 16 54 1 IA1CLK
NC (GP13) EY 17 53 £1 VREF
NC (GP12) LI 18 52 1] VC
NC G 19 51 {0 VSS
VSS [3 20 509 [1 CTRLSIN
IRQ Cd 21 49 [1 SOUT
-SLEEPO {GP08) CG 22 48 [] SIN
~RESET Cd 23 47 D VDD
XTLI Cd 24 46 [3 VSS
XTLO Cd 25 45 FI MCLK
VSS Cl 26 44 [J ~IARESET
Г ©0 С) © += СЧ © <Е Ц) ©© Ве СО С) © = СЫ С)
N NANNCOOMMOEO MMMM Tr <tT /
OOOO CU OOOO
QZONZNZARZg TODOS
ORSSOÉLOdÉ=Ééd "5
- aC
MO163F0 RCOSVD-L68
Figure 6. DSVD Coprocessor Pin Signals- 68-Pin PLCC
me 7811073 0025323 262 mu MD163
Integrated DSVD, AudioSpan, Speakerphone, Modem Device Set
RCV336ACF/SVD
Table 2. Current and Power Requirements
Current Power
Typical Current Maximum Current Typical Power Maximum Power
Mode (mA) (mA) (mW) (mW) Notes
Normal Mode
Modem Device 170 205 850 1075
DSVD Coprocessor 110 124 550 650
Notes:
Test conditions: VCC = 5.0 VDC for typical values; VCC = 5.25 VDC for maximum values.
Table 3. Absolute Maximum Ratings
Parameter Symbol Limits Units
Supply Voltage YD -0.5 to +7.0 Vv
Input Voltage Yin -0.5 to (+5VD +0.5) V
Operating Temperature Range T A -0 to +70 °C
Storage Temperature Range Тетс -55 10 +125 °C
Analog Inputs Vin -0.3 to (+5VA + 0.3)
Voltage Applied to Outputs in High Impedance (Off) State Viz -0.5 to (+5VD + 0.5)
DC Input Clamp Current | K +20 mA
DC Qutput Clamp Current lok +20 mA
Static Discharge Voltage (25°C) Vegp +2500 \
Latch-up Current (25°C) RIG +200 mA
Information provided by Rockwell International Corporation is believed to be accurate and reliable. However, no responsibility is assumed by
Rockwell International for its use, nor any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent rights of Rockwell International other than for circuitry embodied in Rockwell products.
Rockwell International reserves the right to change circuitry at any time without notice. This document is subject to change without notice.
MD163
EN 7811073 00253204 1T9 MA:
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement