RF2155PCBA View Datasheet(PDF) - RF Micro Devices
Part Name
Description
MFG CO.
'RF2155PCBA' PDF : 8 Pages View PDF
RF2155
Pin Function Description
Interface Schematic
16
G16
RF output power gain control 16dB bit (see specification table for
Same as pin 15.
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.
2
Application Schematic
915 MHz
VCC
1
W=20, L=180 mil
33 pF
2
39 Ω
3
Board Material: FR-4 (Er=4.7)
h=30 mil
33 pF
4
Impedances are critical at pin
5
2, 7, 11, and 14
6
33 pF 6.8 nH
RF In
7
Power Down
8
33 pF
33 pF 33 pF
16
16 dB Ctrl
15
VCC
W=20, L=570 mil
14
33 pF
13
8 dB Ctrl
12
W=55, L=330 mil
50 Ω
33 pF
11
RF Out
3.9 pF
10
9
2-182
Rev B3 010417
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