5

5 - 29

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Pad Number

Function

Description

Interface Schematic

1, 3, 4, 6

GND

These pads and die bottom

must be connected to RF/DC ground.

2

RFIN

This port is DC coupled and matched to 50 Ohms.

5

RFOUT

This port is DC coupled and matched to 50 Ohms.

7, 9,

11, 15

BIT6, BIT4

BIT3, BIT5

Inverted Control Input. See truth table

and control voltage tables.

8, 10, 12,

13, 14, 16

BIT6, BIT4, BIT3,

BIT2, BIT1, BIT5

Non-Inverted Control Input. See truth table

and control voltage tables.

Pad Descriptions

Application Circuit

GaAs MMIC 6-BIT DIGITAL

PHASE SHIFTER, 9 - 12 GHz

v01.0707

HMC643

Note:

This circuit converts a single line positive (0/+5V) control signal to complementary negative (0/-3V) control signals.