MICROWAVE CORPORATION

14 - 170

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

12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order Online at www.hittite.com

14

HMC321LP4

GaAs MMIC SP8T NON-REFLECTIVE

POSITIVE CONTROL SWITCH, DC* - 8.0 GHz

v02.0604

General Description

Features

Functional Diagram

The HMC321LP4 is a broadband non-reflective

GaAs MESFET SP8T switch in a low cost lead-

less surface mount package. Covering DC to 8

GHz, this switch offers high isolation and low

insertion loss. This switch also includes an on

board binary decoder circuit which reduces the

required logic control lines to three. The switch

operates using a positive control voltage of 0/+5

volts, and requires a fixed bias of +5v. This switch

is suitable for usage in 50-Ohm or 75-Ohm sys-

tems.

Broadband Performance: DC - 8.0 GHz

High Isolation: >30 dB@ 6 GHz

Low Insertion Loss: 2.5 dB@ 6 GHz

Integrated Positve Supply 3:8 TTL Decoder

4 mm x 4 mm x 1 mm 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

* DC blocking capacitors are required at ports RFC and

RF1, 2, 3, 4, 5, 6, 7, 8. Their value will determine the

lowest transmission frequency.

Parameter

Frequency

Min.

Typ.

Max.

Units

Insertion Loss

DC - 2.0 GHz

DC - 4.0 GHz

DC - 8.0 GHz

2.3

2.5

2.7

2.7

2.9

3.1

dB

dB

dB

Isolation

DC - 2.0 GHz

DC - 4.0 GHz

DC - 6.0 GHz

DC - 8.0 GHz

35

30

25

20

40

35

30

25

dB

dB

dB

dB

Return Loss

“On State”

DC - 4.0 GHz

DC - 8.0 GHz

8

7

12

10

dB

dB

Return Loss (RF1 - RF8)

“Off State”

2.0 - 8.0 GHz

7

12

dB

Input Power for 1 dB Compression

0.5 - 8.0 GHz

19

23

dBm

Input Third Order Intercept

(Two-tone Input Power = +7 dBm Each Tone, 1 MHz Spacing)

0.5 - 8.0 GHz

33

40

dBm

Switching Characteristics

tRISE, tFALL (10/90% RF)

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

DC - 8.0 GHz

50

150

ns

ns