8

8 - 184

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

GaAs MMIC SP4T NON-REFLECTIVE

SWITCH, DC - 8.0 GHz

v05.0505

General Description

Features

Functional Diagram

The HMC344LP3 & HMC344LP3E are broadband

non-reflective GaAs MESFET SP4T switches in low

cost leadless surface mount packages. Covering DC

to 8 GHz, this switch offers high isolation and low

insertion loss and extends the frequency coverage

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