10

10 - 208

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Pin Number

Function

Description

Interface Schematic

1P/S

See truth table, control voltage

table and timing diagram.

2CLK

3SERIN

4LE

5, 14

GND

These pins and package bottom

must be connected to RF/DC ground.

6, 13

ATTIN,

ATTOUT

These pins are DC coupled and matched to 50 Ohms.

Blocking capacitors are required. Select value based

on lowest frequency of operation.

7 - 12

ACG1 - ACG6

External capacitors to ground is required. Select value for

lowest frequency of operation. Place capacitor as close to

pins as possible.

15

SEROUT

Serial input data delayed by 6 clock cycles.

16, 17

19 - 24

PUP2, PUP1

D5, D4, D3,

D2, D1, D0

See truth table, control voltage

table and timing diagram.

18

Vdd

Supply voltage

Pin Descriptions

0.5 dB LSB GaAs MMIC 6-BIT

DIGITAL ATTENUATOR, DC - 6 GHz

v02.0807