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20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

Application Circuit

The value of capacitors C1 & C2 are critical for low frequency isolation performance below 500 MHz. 3300 pF 0402 size capacitors

are recommended for optimal isolation down to 5 MHz. If the frequency of operation is above 500 MHz then 100 pF to 300 pF 0402

capacitors will be sufficient.

Pin Descriptions

Pin Number

Function

Description

Interface Schematic

1

Vdd

Supply Voltage +5V ±10%

2, 4, 5, 6,

9, 12, 15,16

N/C

These pins should be connected to PCB RF ground

to maximize isolation.

3, 7, 14

RFC, RF1, RF2

These pins are DC coupled and matched to 75 Ohms.

Blocking capacitors are required.

8, 13

ACG1, ACG2

External capacitors to ground are required.

Select value for optimal isolation below 500 MHz.

10

B

See truth table and control voltage table.

11

A

See truth table and control voltage table.

GaAs MMIC SPDT NON-REFLECTIVE

CATV SWITCH, DC - 2.5 GHz

v05.0805