SI4311 Datasheet, PDF (13/20 Pages) Silicon Laboratories – 315/433.92 MHZ FSK RECEIVER

4. Pin Descriptions: Si4311-B10-GM
Si4311
VDD 1
RFGND 2
RX_IN 3
RST 4
AFC 5
6
20 19 18 17 ₁₆
15 BT0
GND
PAD
14 BT1
13 DOUT
12 GND
7 8 9 10 ^{11 VDD}
Pin Number(s)
1, 8, 11
2
3
4
5
6
7, 12, GND PAD
9
10
13
14, 15
16,17
18,19,20
Name
VDD
RFGND
RX_IN
RST
AFC
315/434
GND
XTL1
XTL2
DOUT
BT[1:0]
DEV[1:0]
NC
Description
Supply voltage, may connect to external battery.
RF ground. Connect to ground plane on PCB.
RF receiver input.
Device reset, active low input.
AFC selection input pin.
Selectable logic input for 315 or 433.92 MHz operation.
Ground. Connect to ground plane on PCB.
Crystal input.
Crystal input.
Data output.
Bit time selection input pins.
Frequency deviation input pins.
No connect. Leave floating.
Rev. 0.5
13