RF2155 datasheet(4/8 Pages) RFMD

Part #	RF2155

Description	3V PROGRAMMABLE GAIN POWER AMPLIFIER

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Manufacturer	RFMD [RF Micro Devices]

Direct Link	http://www.rfmd.com

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4 / 8 page

2-182

RF2155

Rev B3 010417

2

Application Schematic

915 MHz

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

16 dB Ctrl

8 dB Ctrl

V

CC

39

Ω

W=20, L=180 mil

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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