MICROWAVE CORPORATION

9 - 96

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

9

HMC424LP3

0.5dB LSB GaAs MMIC 6-BIT DIGITAL

ATTENUATOR, DC - 13 GHz

v04.0604

Pin Description

Simple driver using inexpensive standard logic ICs provides fast

switching using minimum DC current.

* Recommended value to suppress unwanted RF signals at V1 -

V6 control lines.

Pad Number

Function

Description

Interface Schematic

1, 3, 10, 12

GND

Package bottom has an exposed metal paddle that must also be

connected to RF grount

2, 11

RFIN, RFOUT

This pin is DC coupled and matched to 50 Ohm. Blocking capaci-

tors are required if RF line potential is not equal to 0V.

4, 5, 6, 7, 8, 9

V6 - V1

See truth table and control voltage table.

13, 14, 16

N/C

This pin should be connected to PCB RF ground to maximize

performance

15

VEE

Supply Voltage -5V