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14

HMC344LP3

GaAs MMIC SP4T NON-REFLECTIVE

SWITCH, DC - 8.0 GHz

v04.0604

General Description

Features

Functional Diagram

The HMC344LP3 is a broadband non-reflective

GaAs MESFET SP4T switch in a low cost lead-

less surface mount package. Covering DC to 8

GHz, this switch offers high isolation and low

insertion loss and extends the frequency cover-

age of Hittite’s SP4T switch product line. This

switch also includes an on board binary decoder

circuit which reduces the required logic control

lines to two. The switch operates using a negative

control voltage of 0/-5V, and requires a fixed bias

of -5V.

Broadband Performance: DC - 8.0 GHz

High Isolation: 40 dB@ 6 GHz

Low Insertion Loss: 1.8 dB@ 6 GHz

Integrated 2:4 TTL Decoder

LP3 SMT Package

Typical Applications

This switch is suitable for usage in DC - 8.0 GHz

50-Ohm or 75-Ohm systems:

• Broadband

• Fiber Optics

• Switched Filter Banks

• Wireless below 8 GHz

Parameter

Frequency

Min.

Typ.

Max.

Units

Insertion Loss

DC - 2.0 GHz

DC - 6.0 GHz

DC - 8.0 GHz

1.6

1.8

2.1

2.0

2.2

2.5

dB

dB

dB

Isolation

DC - 2.0 GHz

DC - 4.0 GHz

DC - 6.0 GHz

DC - 8.0 GHz

43

36

34

31

48

41

40

36

dB

dB

dB

dB

Return Loss

“On State”

DC - 2.0 GHz

DC - 4.0 GHz

DC - 6.0 GHz

DC - 8.0 GHz

12

9

8

5

15

12

11

8

dB

dB

dB

dB

Return Loss

“Off State”

DC - 8.0 GHz

7

10

dB

Input Power for 1 dB Compression

0.5 - 8.0 GHz

17

21

dBm

Input Third Order Intercept

(Two-Tone Input Power = +7 dBm Each Tone)

0.5 - 8.0 GHz

37

40

dBm

Switching Characteristics

tRISE, tFALL (10/90% RF)

tON, tOFF (50% CTL to 10/90% RF)

DC - 8.0 GHz

35

150

ns

ns