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v01.0707

GaAs MMIC 40W FAILSAFE

SWITCH, 0.1 - 2.1 GHz

General Description

Features

Functional Diagram

High Input P0.1 dB: +46 dBm Tx

Low Insertion Loss: 0.4 dB

High IIP3: +74 dBm

Single Positive Control: 0/+3V to 0/+8V

Failsafe operation; Tx ‘On’ when unpowered

2x2mm DFN SMT Package

Typical Applications

The HMC646LP2(E) is ideal for:

• LNA Protection & T/R Switching

• TD-SCDMA / 3G Infrastructure

• Satellite Subscriber Terminals

• Private Mobile Radio & Public Safety Handsets

• Automotive Telematics

The HMC646LP2(E) is an SPDT switch in a leadless

DFN surface mount plastic package for use in trans-

mit / receive and LNA protection applications which

require very low distortion and high power handling

of up to 40 watts with less than 10% duty cycle. This

robust switch can control signals from 100 - 2100

MHz* and is ideal for TD-SCDMA / 3G repeaters,

PMR, automotive telematics, and satellite subscriber

terminal applications. The design provides excep-

tional P0.1 dB of +46 dBm and +74 dBm IIP3 on the

Transmit (Tx) port. The failsafe topology provides a

low loss path from Tx to RFC, when no DC power is

available.

Parameter

Min.

Typ.

Max.

Min.

Typ.

Max.

Min.

Typ.

Max

Units

Frequency Range

869 - 960

1525 - 1661

2010 - 2025

MHz

Insertion Loss

Tx - RFC

RFC - Rx

0.3

0.4

0.6

0.7

0.6

0.8

0.9

1.1

0.7

1.3

1.0

1.7

dB

dB

Isolation

Tx - RFC

RFC - Rx

20

28

27

38

15

20

22

30

12

25

17

32

dB

dB

Return Loss

Tx - RFC

RFC - Rx

17

25

27

20

25

12

dB

dB

Input Power for 0.1 dB

Compression

Tx - RFC

RFC - Rx

44

20

46

20

46

20

dBm

dBm

Input Third Order

Intercept (Two-tone input

power = +17 dBm each tone)

Tx - RFC

RFC - Rx

71

41

74

42

74

34

dBm

dBm

Switching Characteristics

tRISE, tFALL (10/90% RF)

tON, (50% CTL to 90% RF)

tOFF (50% CTL to 10% RF)

100

320

320

100

320

320

100

320

320

ns

ns

ns

* Specifications and data reflect HMC646LP2 measured using the respective application circuits for each

designated frequency band found herein