SI4731-B-EVB Silicon Laboratories Inc, SI4731-B-EVB Datasheet - Page 14
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SI4731-B-EVB
Manufacturer Part Number
SI4731-B-EVB
Description
DEVELOPMENT KIT SI4731
Manufacturer
Silicon Laboratories Inc
Type
Receiverr
Datasheet
1.SI4731-B-EVB.pdf
(32 pages)
Specifications of SI4731-B-EVB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Si4730, Si4731
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Other names
Q3885405
Si4730/31-A10
2. Typical Application Schematic
Notes:
14
AM antenna
1. Place C1 close to V
2. All grounds connect directly to GND plane on PCB.
3. Pins 1 and 20 are no connects, leave floating.
4. To ensure proper operation and receiver performance, follow the guidelines in “AN384: Si4730/31 AM/FM Receiver
5. Pin 2 connects to the FM antenna interface, and pin 4 connects to the AM antenna interface.
6. RFGND should be locally isolated from GND.
7. Place Si4730/31 as close as possible to antenna jack and keep the FMI and AMI traces as short as possible.
Layout Guide.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
RCLK
SCLK
1.5 to 3.6 V
SDIO
RST
SEN
FMIP
VIO
L1
C5
DD
pin.
1
2
3
4
5
NC
FMI
RFGND
AMI
RST
Si4730/31-GM
U1
Rev. 1.0
ROUT
LOUT
GND
VDD
NC
GPO3
15
14
13
12
11
Optional: for crystal oscillator option
L2
Optional: AM air loop antenna
C1
LOUT
ROUT
C2
T1
C5
GPO1
GPO2/INT
GPO3
X1
VBATTERY
2.7 to 5.5 V
C3
RFGND
RCLK
AMI