For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

8

8 - 7

HMC712LP3CE

v04.0410

GaAs MMIC VOLTAGE-VARIABLE

ATTENUATOR, 5 - 26.5 GHz

Application Circuit

Pin number

Function

Description

Interface schematic

1, 2, 4, 9, 11, 12

Ground Paddle

GnD

Ground paddle must be connected to rF/DC ground.

3

rFIn

this pin is DC coupled and matched to 50 ohms.

A blocking capacitor is required if rF line potential

is not equal to 0V.

5, 8, 13 - 16

n/C

these pins should be connected to PCB rF ground to

maximize performance.

6

Vctrl1

Control Voltage 1

7

Vctrl2

Control Voltage 2

10

rFout

this pin is DC coupled and matched to 50 ohms.

A blocking capacitor is required if rF line potential

is not equal to 0V.

Pin Descriptions