Si4731-A-EVB Silicon Laboratories Inc, Si4731-A-EVB Datasheet - Page 14

• Manufacturer Part Number: Si4731-A-EVB
• Description: WiFi / 802.11 Modules & Development Tools Si4731 Eval Board
• Manufacturer: Silicon Laboratories Inc

Specifications of Si4731-A-EVB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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