Si4703-B17
34 Confidential Rev. 1.0
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7. Pin Descriptions: Si4703-GM
Pin Number(s) Name Description
1, 20 NC No Connect. Leave floating.
2 FMIP FM RF inputs.
3 RFGND RF ground. Connect to ground plane on PCB.
4, 12, 15, PAD GND Ground. Connect to ground plane on PCB.
5
RST
Device reset (active low) input.
6
SEN
Serial enable input (active low).
7 SCLK Serial clock input.
8 SDIO Serial data input/output.
9 RCLK External reference oscillator input.
10 V
IO
I/O supply voltage.
11 V
D
Digital supply voltage. May be connected directly to battery.
13 ROUT Right audio output.
14 LOUT Left audio output.
16 V
A
Analog supply voltage. May be connected directly to battery.
17, 18, 19 GPIO3, GPIO2,
GPIO1
General purpose input/output.
GND
PAD
1
GPIO1
RCLK
GND
LOUT
ROUT
RST
NC
GND
SDIO
SCLK
GND
FMIP
RFGND
GPIO2
VD
NC
GPIO3
VIO
SEN
VA
2
5
4
3
6
15
12
13
14
7 1098
11
17181920 16
