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2-182
RF2155
Rev B3 010417
2
Application Schematic
915 MHz
Pin
Function
Description
Interface Schematic
16
G16
RF output power gain control 16dB bit (see specification table for
logic). The control voltage at this pin should never exceed 3.3V and a
logic high should be at least 2.7V. This pin should also have an external
UHF bypassing capacitor.
Same as pin 15.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
W=55, L=330 mil
3.9 pF
50
Ω
33 pF
RF Out
W=20, L=570 mil
33 pF
33 pF
33 pF
16 dB Ctrl
8 dB Ctrl
V
CC
39
Ω
W=20, L=180 mil
33 pF
33 pF
6.8 nH
33 pF
RF In
V
CC
33 pF
Power Down
Board Material: FR-4 (Er=4.7)
h=30 mil
Impedances are critical at pin
2, 7, 11, and 14
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