si4704 Silicon Laboratories, si4704 Datasheet - Page 27

• Manufacturer Part Number: si4704
• Description: Broadcast Fm Radio Receiver For Consumer Electronics
• Manufacturer: Silicon Laboratories

6. Pin Descriptions: Si4704/05-GM
Pin Number(s)
12, GND PAD
1, 20
10
11
13
14
15
16
17
18
19
2
3
4
5
6
7
8
9
GPO3/DCLK
GPO2/INT
RFGND
ROUT
DOUT
GPO1
Name
RCLK
LOUT
SCLK
SDIO
GND
SEN
RST
DFS
V
FMI
V
NC
LPI
DD
IO
RFGND
RST
No connect. Leave floating.
FM RF input.
RF ground. Connect to ground plane on PCB.
Loop antenna RF input.
Device reset input (active low).
Serial enable input (active low).
Serial clock input.
Serial data input/output.
External reference or crystal oscillator input.
I/O supply voltage.
Supply voltage. May be connected directly to battery.
Ground. Connect to ground plane on PCB.
Right audio analog line output.
Left audio analog line output.
Digital audio output data.
Digital frame synchronization.
General purpose output/digital bit synchronous clock or crystal oscillator
input.
General purpose output/interrupt.
General purpose output.
FMI
LPI
NC
2
3
4
5
1
6
20
7
19
Rev. 1.0
8
GND
PAD
18
9
17
10
16
11
15 DOUT
14
13
12
Description
LOUT
ROUT
GND
VDD
Si4704/05-C40
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