MICROWAVE CORPORATION

9 - 96

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

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9

HMC425LP3

v00.0202

Pin Descriptions

0.5 dB LSB GaAs MMIC 6-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, 2.4 - 8.0 GHz

Pin Number

Function

Description

Interface Schematic

1, 3, 10, 12

GND

Package bottom has an exposed metal paddle that must also

be connected to RF Ground.

2, 11

RFIN, RFOUT

This pin is DC coupled and matched to 50 Ohm.

Blocking capacitors are required.

4, 5, 6, 7, 8, 9

V1 - V6

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

Vdd

Supply Voltage.