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M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

2

250 mW Linear Power Amplifier and T/R Switch

1.8—2.0 GHz

Rev. V2

AM55-0004

ADVANCED:

Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY:

Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

Absolute Maximum Ratings

1

Parameter

Absolute Maximum

+10 VDC

Operating Temperature

-40°C to +85°C

Storage Temperature

-65°C to +150°C

1. Exceeding any one or combination of these limits may cause

permanent damage to this device.

Functional Diagram and

Pin Configuration

Pin Configuration

Pin No.

Pin Name

Description

1

GND

RF and DC Ground

2

VSW

Complimentary T/R Switch Control,

-4 V Tx model/0 V Rx mode

3

GND

RF and DC Ground

4

Tx IN

Transmit side of T/R switch

5

GND

RD and DC Ground

6

GND

RF and DC Ground

7

ANT IN/OUT

Common port of T/R switch which

is connected to the antenna

8

GND

RF and DC Ground

9

Rx OUT

Receive side of T/R switch

10

GND

RF and DC Ground

11

GND

RF and DC Ground

12

Positive bias for the first stage of

PA, +2.7 to +6.0 volts

13

SAVE Tx

Sleep mode control of fist stage of

PA ONLY

0 V –first PA stage on

-4 V—first PA stage off

14

GND

RF and DC Ground

15

GND

RF and DC Ground

16

PA IN

RF input of the Power Amplifier

17

GND

RF and DC Ground

18

Negative bias control for the first

PA stage, voltage divider is on the

cent bias current, which is typically

30 mA. Input impedance : 10 k Ω

19

GND

RF and DC Ground

20

Negative bias control for the

second PA stage, adjusted to set

is typically 65 mA.

Input impedance : > 1 M Ω

21

GND

Second Stage RF and DC Ground

22

GND

Second Stage RF and DC Ground

23

GND

Second Stage RF and DC Ground

24

GND

Second Stage RF and DC Ground

25

PA OUT

RF output of the Power Amplifier

26

Positive bias for the second stage

of the PA, +2.7 to +6.0 volts

27

VSW

T/R Switch Control, 0 V Tx model/ -

4 V Rx mode

28

GND

RF and DC Ground

Operating

Mode

VSW

VSW

PA Tx

X

X

PA Sleep

X

X

SAVE Tx

0 V

-4.0 Volts

T/R Switch

TX

0 Volts

-4.0 Volts

X

T/R Switch

Rx

-4.0 Volts

0 Volts

X

Truth Table

X = Don’t Care