Custom MMIC

300 Apollo Drive Chelmsford, MA 01824 Phone (978) 467-4290 Fax (978) 467-4294

Visit us online at www.custommmic.com

The CMD203 is a broadband MMIC SP4T

switch in die form. The CMD203 covers DC

to 20 GHz and offers a low insertion loss of

2.4 dB and high isolation of 39 dB at 10

GHz. The switch also includes an on board

binary decoder circuit which reduces the

number of required logic control lines from

four to two.

The CMD203 operates using

complementary control voltage logic lines of

0/-5 V and consumes little DC current.

► Low loss broadband performance

► High isolation

► Non-reflective design

► Integrated 2:4 TTL decoder

► Small die size

Features

Description

Functional Block Diagram

Parameter

Min

Typ

Max

Units

Frequency Range

GHz

Insertion Loss

2.4

dB

Isolation

45

dB

Return Loss - On State

9

dB

Return Loss RF1, RF2, RF3, RF4 - Off State

11

dB

Input P1dB

21

dBm

Switching Characteristics

tRISE, tFALL (10/90% RF)

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

66

81/8

ns

ns

DC - 20

ver 1.6 0319

1

2

3

4

4

5

6

7

8

9

RFC

RF1

RF2

RF4

RF3

A

B

Vss

GB

CMD203

DC-20 GHz SP4T Non-reflective Switch