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

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HMC712LP3CE

GaAs MMIC VOLTAGE-VARIABLE

ATTENUATOR, 5 - 26.5 GHz

v04.0410

General Description

Features

Functional Diagram

Wide Bandwidth: 5 - 26.5 GHz

excellent Linearity: +28 dBm Input P1dB

Wide Attenuation range: 28 dB

Absorptive topology

singe or Dual Control operation

16 Lead 3x3mm sMt Package: 9mm²

Typical Applications

the HMC712LP3Ce is ideal for:

• Point-to-Point radio

• VsAt radio

• test Instrumentation

• Microwave sensors

• Military, eCM & radar

the HMC712LP3Ce is an absorptive Voltage Var-

iable Attenuator (VVA) which operates from 5 - 26.5

GHz and is ideal in designs where an analog DC

control signal must be used to control rF signal

levels over a 28 dB amplitude range. It features two

shunt-type attenuators which are controlled by two

analog voltages, Vctrl1 and Vctrl2. optimum linearity

performance of the attenuator is achieved by first

varying Vctrl1 of the 1st attenuation stage from -3V

to 0V with Vctrl2 fixed at -3V. the control voltage of

the 2nd attenuation stage, Vctrl2, should then be

varied from -3V to 0V, with Vctrl1 fixed at 0V. the

HMC712LP3Ce is housed in a roHs compliant

3x3 mm QFn leadless package

However, if the Vctrl1 and Vctrl2 pins are connected

together it is possible to achieve the full analog

attenuation range with only a small degradation

in input IP3 performance. Applications include

AGC circuits and temperature compensation of

multiple gain stages in microwave point-to-point and

VsAt radios.

Parameter

Min.

typ.

Max.

units

Insertion Loss

5 - 16 GHz

16 - 24 GHz

24 - 26.5 GHz

3.5

4.5

5.5

dB

dB

dB

Attenuation range

28

dB

Input return Loss

12

dB

output return Loss

10

dB

Input Power for 1 dB Compression (any attenuation)

28

dBm

Input third order Intercept

(two-tone Input Power = 10 dBm each tone)

32

dBm