SI4707-B20 Datasheet, PDF (21/30 Pages) Silicon Laboratories – WEATHER BAND AND SAME DATA RECEIVER

6. Pin Descriptions: Si4707-B20
Si4707-B20
NC 1 ^{20 19 18 17} 16
FMI 2
15 NP2
RFGND 3
NP1 4
GND
PAD
14 LOUT
13 ROUT
RST 5
12 GND
6 _{7 8 9 10} 11 VDD
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
NP1
RST
SEN
SCLK
SDIO
RCLK
VIO
V_DD
GND
ROUT
LOUT
NP2
NP3
GPO3
GPO2/INT
GPO1
Description
No connect. Leave floating.
WB RF input. FMI should be connected to the antenna trace.
RF ground. Connect to ground plane on PCB.
Unused. Recommend connect to ground.
Device reset (active low) input.
Serial enable input (active low).
Serial clock input.
Serial data input/output.
External reference oscillator input.
I/O supply voltage.
Supply voltage. May be connected directly to battery.
Ground. Connect to ground plane on PCB.
Right audio line output in analog.
Left audio line output in analog.
Unused. Recommend connect to ground.
Unused. Recommend connect to ground.
General purpose output or crystal oscillator.
General purpose output or interrupt pin.
General purpose output.
Rev. 0.8
21