RFFM6901 Datasheet, PDF (6/13 Pages) RF Micro Devices – 2.8V TO 4.2V, 915MHZ ISM BAND TRANSMIT/ RECEIVE MODULE WITH DIVERSITY SWITCH

RFFM6901
Pin Descriptions
Pin
Name Description
1
GND
Ground.
2
RX
868MHz/900MHz Receive, Internally DC Blocked.
3
GND
Ground.
4
NC
Not Connected in FEM.
5
GND
Ground.
6
CTL1
ANT Select.
7
CTL2
TxRx Select.
8
CTL3
LNA Select.
9
CTL4
PD Select.
10
CTL5
PA_Low Bias.
11
VDIG
Digital V_CC.
12
LNA_Vcc ^{LNA V}CC^.
13
LNA_Bias ^{LNA linearity bias (Place SMD Resistor to GND to Lower LNA I}DD^).
14
LNA_IN ^{LNA Signal Input, Internally DC Blocked.}
15
GND
Ground.
16
ASW_RX ^{Antenna Switch Receive Output, Internally DC Blocked.}
17
GND
Ground.
18
GND
Ground.
19
ANT2
Antenna 2 Output/Input, Internally DC Blocked.
20
GND
Ground.
21
ANT1
Antenna 1 Output/Input, Internally DC Blocked.
22
GND
Ground.
23
PA VCC2 ^{PA Battery Bias for Second Stage.}
24
PA VCC1 ^{PA Battery Bias for First Stage.}
25
GND
Ground.
26
PA2_IN
Power Amplifier 2nd Stage Signal Input Port.
27
GND
Ground.
28
PA1_OUT ^{Power Amplifier 1st Stage Signal Output Port, Internally DC Blocked.}
29
GND
Ground.
30
PA1_IN
Power Amplifier 1st Stage Signal Input Port, Internally DC Blocked.
31
GND
Ground.
32
NC
Not connected in FEM.
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DS120803