10

10 - 304

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GaAs MMIC T/R SWITCH,

DC - 4.0 GHz

v00.0206

Typical Application Circuit

Pin Descriptions

Notes:

1. Set logic gate Vdd = +3V to +5V and use HCT series logic to provide a TTL driver interface.

2. Control inputs A/B can be driven directly with CMOS logic (HC) with Vdd of +3V to +5V applied to the CMOS logic gates.

3. DC Blocking capacitors are required for each RF port as shown. Capacitor value determines lowest frequency of operation.

Pin Number

Function

Description

Interface Schematic

1, 3, 5

RF2, RF1, RFC

These pins are DC coupled and matched to 50 Ohms.

Blocking capacitors are required.

2

GND

This pin must be connected to RF/DC ground.

4

B

See truth and control voltage tables.

6

A

See truth and control voltage tables.