13 - 21

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13

Pin Descriptions

Pin Number

Function

Description

Interface Schematic

1, 5, 9, 14, 16, 23,

24, 31

N/C

These pins may be connected to RF/DC ground.

Performance will not be affected.

2, 20

RFin1, RFin2

This pin is DC coupled. An off chip DC blocking capacitor is

required.

4, 22

RFout1, RFout2

RF output and DC bias (Vcc) for the output stage of the

amplifiers. Amplifier bias provided via external bias tee as

shown in application circuit.

3, 7, 18, 21

GND

These pins and package bottom

must be connected to RF/DC ground.

6, 19

ATTin,

ATTout

These pins are DC coupled and matched to 50 Ohms.

Blocking capacitors are required. Select value based

on lowest frequency of operation.

8, 10,

11, 12,

13, 15,

17

ACG1, ACG2,

ACG3, ACG4,

ACG5, ACG6,

ACG7

External capacitors to ground is required. Select value for

lowest frequency of operation. Place capacitor as close to

pins as possible.

25 - 30

V1 - V6

See truth table, control voltage

table and timing diagram.

32

Vdd

Supply voltage

HMC626LP5 / 626LP5E

v06.0709

0.5 dB LSB GaAs MMIC 6-BIT DIGITAL

VARIABLE GAIN AMPLIFIER, DC - 1 GHz