Si4836 Demo Board Users Guide
Si4836-DEMO
Si4836 D EMO B OARD U SER ’ S G UIDE
1. Features
ATAD
(analog tune and analog display) AM/FM/SW radio
Worldwide FM band support from 64–109 MHz with 5 bands, see Table 1
Worldwide AM band support from 504–1750 kHz with 5 bands, see Table 1
Worldwide SW band support 2.3–28.5 MHz with 18 wide bands or 18 narrow bands, see Table 1
Twelve positions band switch for selecting different band according to the target market
Two AAA battery operations with working voltage down to 2.0 V
Economical potentiometer for frequency tuning replaces more expensive variable capacitor (PVC)
Potentiometer volume control
Push button Bass/Treble control
FM 50 µs or 75 µs de-emphasis
SW Wideband/Narrow-band selection via a slide switch
Table 1. Si4836 Band Sequence Definition
Band
Name
Band Frequency Range
De-emphasis (FM)
Channel Space (AM)
FM1
87–108 MHz
50 µs
FM2
87–108 MHz
50 µs
FM3
87–108 MHz
75 µs
FM4
87–108 MHz
75 µs
FM5
86.5–109 MHz
50 µs
FM6
86.5–109 MHz
50 µs
FM7
87.3–108.25 MHz
50 µs
FM8
87.3–108.25 MHz
50 µs
FM9
87.3–108.25 MHz
75 µs
FM10
87.3–108.25 MHz
75 µs
FM11
76–90 MHz
50 µs
FM12
76–90 MHz
50 µs
FM13
64–87 MHz
50 µs
FM14
64–87 MHz
50 µs
FM15
76–108 MHz
50 µs
FM16
76–108 MHz
50 µs
FM17
64–108 MHz
50 µs
FM18
64–108 MHz
50 µs
AM1
520–1710 kHz
10k
Rev. 0.1 3/13
Note
Demo Board Default
Demo Board Default
Demo Board Default
Copyright © 2013 by Silicon Laboratories
Si4836-DEMO
Si4836-DEMO
Table 1. Si4836 Band Sequence Definition
Band
Name
Band Frequency Range
De-emphasis (FM)
Channel Space (AM)
AM2
522–1620 kHz
9k
AM3
504–1665 kHz
9k
AM4
522–1728 kHz / 520–1730 kHz
9k / 10k
AM5
510–1750 kHz
10k
SW1
Note
Demo Board Default
SW Wide Band
SW Narrow Band
2.3–10.0 MHz
2.30–2.49 MHz
SW2
3.2–7.6 MHz
3.20–3.40 MHz
Demo Board Default
SW3
3.2–10.0 MHz
3.90–4.00 MHz
Demo Board Default
SW4
3.7–12.5 MHz
4.75–5.06 MHz
SW5
3.9–7.5 MHz
5.6–6.4 MHz
SW6
5.6–22 MHz
5.95–6.2 MHz
SW7
5.8–12.1 MHz
6.8–7.6 MHz
SW8
5.9–9.50 MHz
7.1–7.6 MHz
SW9
5.9–18.0 MHz
9.2–10 MHz
Demo Board Default
SW10
7.0–16.0 MHz
11.45–12.25 MHz
Demo Board Default
SW11
7.0–23.0 MHz
11.6 –12.2 MHz
Demo Board Default
SW12
9.0–16.0 MHz
13.4–14.2 MHz
SW13
9.0–22.0 MHz
13.57–13.87 MHz
Demo Board Default
SW14
9.5–18.0 MHz
15–15.9 MHz
Demo Board Default
SW15
10.0–16.0 MHz
17.1–18 MHz
SW16
10.0–22.0 MHz
17.48–17.9 MHz
SW17
13.0–18.0 MHz
21.2–22 MHz
SW18
18.0–28.5 MHz
21.45 –21.85 MHz
Demo Board Default
2. Overview
This user’s guide describes the operation of the Silicon Labs Si4836-DEMO board rev1.1, Nov 20, 2012. The
Silicon Laboratories Si4836-DEMO board is designed with the 16-pin SOIC packaged Si4836 chip, the
revolutionary single chip AM/FM/SW receiver that integrates everything from antenna input to audio output and
allows use of common and economical potentiometers to do the frequency tuning. It provides a complete portable
analog tune analog display AM/FM/SW radio design. The Si4836-DEMO is designed with 1-layer PCB, allowing
the lowest cost without sacrificing the RF performance. The demo board works with two AAA batteries and working
voltage down to 2.0 V.
2
Rev. 0.1
Si4836-DEMO
3. Description
Figure 1 and Figure 2 shows the physical layout of the board with key components indicated.
Figure 1. Si4836-DEMO Board Top Side
Figure 2. Si4836-DEMO Board Bottom Side
Rev. 0.1
3
Si4836-DEMO
Power:
BAT1: 2 cells AAA battery holder
S1: Power on / off
Audio Connectors:
J5: Stereo audio headphone output
Antenna Selections:
AM antenna: Ferrite stick antenna for AM
J1: BNC connector for FM/ SW conductive testing or FM whip antenna
J2: FM antenna selector
1
2
3
1-2: HP ANT (J5)
2-3: BNC (J1)
J6: SMA connector for AM conductive testing
J3: AM antenna selector
1
2
3
1-2: AM Ferrite Antenna
2-3: SMA (J6)
Audio Output Test Point:
For the general specification test, TP2 is the recommended audio signal test point. The audio test instrument
should be connected to TP2 to get more accurate test results. J5 can also be used as an audio test point, but the
test results may not be entirely accurate under some circumstances.
4
3
GND
2
Lout
1
Rout
Rev. 0.1
Si4836-DEMO
Tuner Output Test Point:
For the tuner specification test, TP1 is the recommended tuner output test point. The audio test instrument should
be connected to TP1 to get accurate test results.
3
2
1
GND
Lout
Rout
Main Components:
U1: Silicon Laboratories Si4836 AM/FM/SW ATAD receiver
U2: Audio amplifier
Frequency scale: The analog display for tuning frequency
Control Interface:
VR1: Frequency tuning wheel.
VR2: Volume control wheel
J9: SMA connector for external RCLK
S3: The push button for bass/treble control
J8: The bass/treble function enable/disable selector
1
2
3
1-2: Disable
2-3: Enable
J7: SW Wideband/Narrow-band selector
1
2
3
1-2: SW Wideband
2-3: SW Narrow-band
Rev. 0.1
5
Si4836-DEMO
J10: Tuner VDD connector (connect tuner Pin14 VDD to VBAT or VCC)
1
2
3
1-2: VBAT
2-3: VCC
S2: Band switch for FM, AM, and SW
1
2
3
4
5
6
7
8
9
10
11
12
1: FM3 (87–108 MHz)
2: FM17 (64–108 MHz)
3: AM1 (520–1710 kHz)
4: AM2 (522–1620 kHz)
5: SW2 (N 3.2–3.4 MHz) (W 3.2–7.6 MHz)
6: SW3 (N 3.9–4.0 MHz) (W 3.2–10.0 MHz)
7: SW9 (N 9.2–10.0 MHz) (W 5.9–18.0 MHz)
8: SW10 (N 11.45–12.25 MHz) (W 7.0–16.0 MHz)
9: SW11 (N 11.6 –12.2 MHz) (W 7.0–23.0 MHz)
10: SW13 (N 13.57–13.87 MHz) (W 9.0–22.0 MHz)
11: SW14 (N 15.0–15.9 MHz) (W 9.5–18.0 MHz)
12: SW16 (N 17.48 –17.9 MHz) (W 10.0–22.0 MHz)
Note: N = SW Narrow-band, W = SW Wideband
6
Rev. 0.1
Si4836-DEMO
4. Operation
S4836-DEMO board, a complete analog tune and analog display radio, is very easy to operate:
1. Switch the SW Wideband/Narrow-band selector J7 to the desired SW Wideband or Narrow-band.
2. Switch the tuner VDD connector J10 to the desired VABT or VCC.
3. Switch the bass/treble function enable/disable selector J8 to the desired Disable or Enable.
4. Put two AAA batteries into the battery compartment.
5. Switch the power switch S1 to the ON position. The board will power up to a radio band according to the
position of the band switch.
6. Change the band switch S2 to the desired band.
7. Rotate the tuning wheel VR1 and find the desired frequency.
8. Rotate the volume control wheel VR2 to get a comfortable volume.
Note: For FM listening, the earphone cable must be connected to the board when J2 is set to "HP ANT" or an external antenna
must be connected to the BNC connector when J2 is set to "BNC”.
For AM listening, the ferrite antenna must be connected to the board and the J3 is set to "Ferrite" before Turning on the
radio or band switching to AM.
Rev. 0.1
7
Si4836-DEMO
5. Bill of Materials
ATAD
AM/FM/SW receiver IC Si4836 with external 32.768 kHz crystal oscillator support
LM4910 Audio amplifier IC
See Table 2 for details
Table 2. Si4836-DEMO Board rev1.1 Bill of Materials
8
Item
Qty
Reference
Description
1
6
C1 C6 C16 C19 C24 C39
CAP,SM,0603,X7R
0.1 µ
2
3
C23 C26 C27
CAP,SM,1210,X7R
220 µ
3
1
C13
CAP,SM,1210,X7R
47 µ
4
2
C14 C25
Electrolytic capacitor
5
2
C2 C3
CAP,SM,0603,X7R
22p
6
2
C30 C31
CAP,SM,0603,X7R
33n
7
1
C33
CAP,SM,0603,X7R
10p
8
1
C34
CAP,SM,0603,X7R
33p
9
4
C4 C7 C12 C21
CAP,SM,0603,X7R
10u
10
1
C15
CAP,SM,0603,X7R
4.7 µ
11
2
C5 C36
CAP,SM,0603,X7R
0.47 µ
12
2
C8 C10
CAP,SM,0603,X7R
100p
13
2
C11 C20
CAP,SM,0603,X7R
150p
14
2
C18 C22
CAP,SM,0603,X7R
330p
15
2
R25 R26
RES,SM,0603
0R
16
2
R17 R22
RES,SM,0603
12k
17
1
R27
RES,SM,0603
100R
18
1
R31
RES,SM,0603
1k
19
1
R32
RES,SM,0603
10R
20
1
R41
RES,SM,0603
120k
21
2
R3 R18
RES,SM,0603
2.2k
22
4
R5 R16 R21 R45
RES,SM,0603
200R
23
3
R6 R23 R34
RES,SM,0603
100k
24
2
R19 R20
RES,SM,0603
6.8k
25
4
R1 R2 R4 R13
RES,SM,0603
56k
26
1
R46
RES,SM,0603
4.7M
27
1
R36
RES,SM,0603,Tolerance ±1%
33k
28
1
R29
RES,SM,0603,Tolerance ±1%
140k
29
1
R43
RES,SM,0603,Tolerance ±1%
40k
Rev. 0.1
Value
100 µ/4 V
Si4836-DEMO
Table 2. Si4836-DEMO Board rev1.1 Bill of Materials (Continued)
Item
Qty
Reference
Description
30
1
R44
RES,SM,0603,Tolerance ±1%
47k
31
5
R7 R9 R11 R12 R15
RES,SM,0603,Tolerance ±1%
10k
32
1
R8
RES,SM,0603,Tolerance ±1%
50k
33
4
R10 R28 R33 R35
RES,SM,0603,Tolerance ±1%
20k
34
1
R14
RES,SM,0603,Tolerance ±1%
60k
35
1
L1
RES,SM,0603
0R
36
1
L2
Inductor 270nH
270 nH
37
4
B4 B5 B6 B7
FERRITE BEAD,SM,0603
2.5k/100M
38
1
B1
FERRITE BEAD,SM,0603
NP
39
1
VR1
100k,±10%,Variable resistor(POT)
100k
40
1
VR2
10k,±20%,Variable resistor(POT)
10k
41
1
U1
SI4836,SOIC16
Si4836
42
1
U2
LM4910MA,SO8
LM4910MA
43
3
D1 D3 D5
LED
44
2
D2 D4
DIODE,SM,ESD,SOT23
45
1
Q1
TRANSISTOR NPN SOT23
46
1
Y1
CRYSTAL
47
1
J1
BNC VERTICAL
48
2
J6 J9
SMA VERTICAL
49
5
J2 J3 J7 J8 J10
Single pole two throw switch
50
1
J5
earphone jack
51
1
S1
Two pole two throw switch
52
1
S2
Single pole twelve throw switch
53
1
S3
Push button
54
1
ANT1
AW ferrite stick antenna
55
1
BAT1
BATTERY BOX,AAA*2 SIZE
56
2
TP1 TP2
CONN,TH,1x3,HDR
Rev. 0.1
Value
LED
BAV99
2SC9018
32.768 kHz
BNC For FM/SW testing
220 µH
CONN,TH,1x3,HDR
9
Figure 3. Si4836-DEMO Board Rev 1.1 Schematic
Si4836-DEMO
6. Schematic and Gerber
10
Rev. 0.1
Si4836-DEMO
Figure 4. Si4836-DEMO Board Gerber Rev 1.1
Rev. 0.1
11
Smart.
Connected.
Energy-Friendly
Products
Quality
Support and Community
www.silabs.com/products
www.silabs.com/quality
community.silabs.com
Disclaimer
Silicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers
using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific
device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories
reserves the right to make changes without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy
or completeness of the included information. Silicon Laboratories shall have no liability for the consequences of use of the information supplied herein. This document does not imply
or express copyright licenses granted hereunder to design or fabricate any integrated circuits. The products must not be used within any Life Support System without the specific
written consent of Silicon Laboratories. A "Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected
to result in significant personal injury or death. Silicon Laboratories products are generally not intended for military applications. Silicon Laboratories products shall under no
circumstances be used in weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons.
Trademark Information
Silicon Laboratories Inc., Silicon Laboratories, Silicon Labs, SiLabs and the Silicon Labs logo, CMEMS®, EFM, EFM32, EFR, Energy Micro, Energy Micro logo and combinations
thereof, "the world’s most energy friendly microcontrollers", Ember®, EZLink®, EZMac®, EZRadio®, EZRadioPRO®, DSPLL®, ISOmodem ®, Precision32®, ProSLIC®, SiPHY®,
USBXpress® and others are trademarks or registered trademarks of Silicon Laboratories Inc. ARM, CORTEX, Cortex-M3 and THUMB are trademarks or registered trademarks of
ARM Holdings. Keil is a registered trademark of ARM Limited. All other products or brand names mentioned herein are trademarks of their respective holders.
Silicon Laboratories Inc.
400 West Cesar Chavez
Austin, TX 78701
USA
http://www.silabs.com
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