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 - 1

MMIC VCO w/ HALF FREQUENCY

OUTPUT 7.3 - 8.2 GHz

v04.0811

General Description

Features

Functional Diagram

The HMC508LP5 & HMC508LP5E are GaAs InGaP

Heterojunction Bipolar Transistor (HBT) MMIC

VCOs. The HMC508LP5 & HMC508LP5E integrate

resonators, negative resistance devices, varactor

diodes and feature a half frequency output. The VCO’s

phase noise performance is excellent over temper-

ature, shock, and process due to the oscillator’s

monolithic structure. Power output is +15 dBm typical

from a +5V supply. The voltage controlled oscillator

is packaged in a leadless QFN 5x5 mm surface

mount package, and requires no external matching

components.

Dual Output: Fo = 7.3 - 8.2 GHz

Fo/2 = 3.65 - 4.1 GHz

Pout: +15.0 dBm

Phase Noise: -116 dBc/Hz @100 kHz Typ.

No External Resonator Needed

32 Lead 5x5mm SMT Package: 25mm²

Typical Applications

Low noise MMIC VCO w/Half Frequency, for:

• VSAT Radio

• Point to Point/Multi-Point Radio

• Test Equipment & Industrial Controls

• Military End-Use

Parameter

Min.

Typ.

Max.

Units

Frequency Range

Fo

Fo/2

7.3 - 8.2

3.65 - 4.1

GHz

GHz

Power Output

RFOUT

RFOUT/2

+12

+4

+17

+10

dBm

dBm

SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RFOUT

-116

dBc/Hz

Tune Voltage

Vtune

2

13

V

Supply Current (Icc) (Vcc = +5.0V)

200

240

280

mA

Tune Port Leakage Current (Vtune= 13V)

10

µA

Output Return Loss

2

dB

Harmonics/Subharmonics

1/2

2nd

3rd

40

20

35

dBc

dBc

dBc

Pulling (into a 2.0:1 VSWR)

8

MHz pp

Pushing @ Vtune= 5V

10

MHz/V

Frequency Drift Rate

1.0

MHz/°C