MICROWAVE CORPORATION

9 - 84

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

HMC424G16

0.5dB LSB GaAs MMIC 6-BIT DIGITAL

ATTENUATOR, DC - 3 GHz

v01.0404

Suggested Driver Circuit

(One Circuit Required Per Bit Control Input)

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.

Pin Number

Function

Description

Interface Schematic

1, 12-16

V1-V6

See truth table and control voltage table.

2, 4-6, 8, 9, 11

GND

Package bottom must also be connected to RF/DC ground.

3, 10

RF1, RF2

These pins are DC coupled and matched to 50 Ohm.

Blocking capacitors are required if RF line is not equal to 0V.

7

Vee

Supply Voltage -5V ±10%

Pin Descriptions