RF6505 Datasheet, PDF (4/9 Pages) RF Micro Devices – 3.2V TO 4.2V, 2.4GHz FRONT END MODULE

RF6505
Pin
Function Description
1
RFN
Differential RF input for PA (TX_Mode) and output for LNA (RX_Mode) internally matched to 100Ω.
2
GND
Ground.
3
RFP
Differential RF input for PA (TX_Mode) and output for LNA (RX_Mode) internally matched to 100Ω.
4
VCC
Voltage supply for VCC Bias. An external 0.1uF capacitor might be needed for low frequency decoupling.
5
TX_EN
Enable voltage pin for the PA and switch. See logic table for operation.
6
PDET
Provides and output voltage proprtional to the output RF level.
7
GND
Ground.
8
VCC1/2
Voltage supply for the first and second stages of the PA. An external 1uF capacitor might be needed for low fre-
quency decoupling.
9
C/I
This pin is connected internally (C/I) to Pin 8 therfore this pin should not be grounded. This pin should be left
open.
10
VCC3
Voltage supply for the third stage of the PA. An external 1uF capacitor might be needed for low frequency decou-
pling
11
NC
No connect.
12
GND
Ground.
13
ANT1
This is a common port (antenna). It is matched to 50Ω and DC block is provided internally.
14
GND
Ground.
15
ANT2
This is a common port (antenna). It is matched to 50Ω and DC block is provided internally.
16
ANT2_EN ^{Control pin for antenna select. See logic table for operation.}
17
ANT1_EN ^{Control pin for antenna select. See logic table for operation.}
18
VCCLNA
Voltage supply. An external 1uF capacitor might be needed for low frequency decoupling.
19
LNA_EN ^{LNA enable pin for selecting between High gain mode and Bypass mode.}
20
RX_EN
Enable voltage pin for the Receive mode and switch. See logic table for operation.
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