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Si4730/31-D50
5. Pin Descriptions: Si4730/31-GM
NC
1
20
19
18
17
16
FMI 2
15 DOUT
RFGND 3
AMI 4
RST 5
GND
PAD
14 LOUT
13 ROUT
12 GND
6
7
8
9
10
11 VA
Pin Number(s)
1, 20
2
3
4
5
6
7
8
9
10
11
12, GND PAD
13
14
15
16
17
18
19
Name
NC
FMI
RFGND
AMI
RST
SEN
SCLK
SDIO
RCLK
V D
V A
GND
ROUT
LOUT
DOUT
DFS
GPO3/DCLK
GPO2/INT
GPO1
Description
No connect. Leave floating.
FM RF inputs. FMI should be connected to the antenna trace.
RF ground. Connect to ground plane on PCB.
AM RF input. AMI should be connected to the AM antenna.
Device reset (active low) input.
Serial enable input (active low).
Serial clock input.
Serial data input/output.
External reference oscillator input.
Digital and I/O supply voltage.
Analog supply voltage. May be connected directly to battery.
Ground. Connect to ground plane on PCB.
Right audio line output in analog output mode.
Left audio line output in analog output mode.
Digital output data in digital output mode.
Digital frame synchronization input in digital output mode.
General purpose output, crystal oscillator, or digital bit synchronous clock input
in digital output mode.
General purpose output or interrupt pin.
General purpose output.
Rev. 1.0
25
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