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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8 - 1

WIDEBAND MMIC VCO w/ BUFFER

AMPLIFIER, 6 - 12 GHz

v00.0410

General Description

Features

Functional Diagram

The HMC732LC4B is a wideband GaAs InGaP HBT

MMIC Voltage Controlled Oscillator which incor-

porates the resonator, negative resistance device,

and varactor diode. Output power and phase noise

performance are excellent over temperature due to

the oscillator’s monolithic construction. The Vtune

port accepts an analog tuning voltage from 0 to +23V.

The HMC732LC4B VCO operates from a single +5V

supply, consumes only 57 mA of current, and is housed

in a RoHS compliant SMT package. This wideband

VCO uniquely combines the attributes of ultra small

size, low phase noise, low power consumption, and

wide tuning range.

Wide Tuning Bandwidth

Pout: +1 dBm

Low SSB Phase Noise: -95 dBc/Hz @100 kHz

No External Resonator Needed

Single Positive Supply: +5V @ 57 mA

24 Lead Ceramic 4x4 mm SMT Package: 16 mm²

Typical Applications

Low Noise wideband MMIC VCO is ideal for:

• Industrial/Medical Equipment

• Test & Measurement Equipment

• Military Radar, EW & ECM

Parameter

Min.

Typ.

Max.

Units

Frequency Range

6 - 12

GHz

Power Output

1

dBm

SSB Phase Noise @ 10 kHz Offset

-65

dBc/Hz

SSB Phase Noise @ 100 kHz Offset

-95

dBc/Hz

Tune Voltage (Vtune)

0

23

V

Supply Current (Icc) (Vcc = +5V)

57

mA

Tune Port Leakage Current (Vtune = +23V)

10

µA

Output Return Loss

15

dB

2nd Harmonic

-12

dBc

Pulling (into a 2.0:1 VSWR)

7

MHz pp

Pushing @ Vtune= +20V, F = 12 GHz

-85

MHz/V

Frequency Drift Rate @ 6 GHz

0.4

MHz/°C

Frequency Drift Rate @ 12 GHz

0.25

MHz/°C

HMC732LC4B