10

10 - 2

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

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

Order On-line at www.hittite.com

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HMC568LC5

GaAs MMIC I/Q DOWNCONVERTER

9 - 12 GHz

v05.1208

General Description

Features

Typical Applications

The HMC568LC5 is a compact GaAs MCM I/Q

downconverter

in

a

leadless

RoHS

compliant

SMT package. This device provides a small signal

conversion gain of 14 dB with a noise figure of 2 dB and

33 dB of image rejection. The HMC568LC5 utilizes an

LNA followed by an image reject mixer which is driven

by an LO buffer amplifier. The image reject mixer

eliminates the need for a filter following the LNA, and

removes thermal noise at the image frequency. I and

Q mixer outputs are provided and an external 90°

hybrid is needed to select the required sideband. The

HMC568LC5 is a much smaller alternative to hybrid

style image reject mixer downconverter assemblies,

and it eliminates the need for wire bonding by allowing

the use of surface mount manufacturing techniques.

IF = 100 MHz, LO = 0 dBm, VD3 = 5V, VD1, VD2 = 3V*

Parameter

Min.

Typ.

Max.

Units

Frequency Range, RF

9 - 12

GHz

Frequency Range, LO

5.5 - 15.5

GHz

Frequency Range, IF

DC - 3.5

GHz

Conversion Gain (As IRM)

10

14

dB

Noise Figure

2.0

dB

Image Rejection

20

33

dB

1 dB Compression (Input)

-7

dBm

LO to RF Isolation

40

55

dB

LO to IF Isolation

20

38

dB

IP3 (Input)

-1

dBm

Amplitude Balance

±1

dB

Phase Balance

±5

Deg

Total Supply Current

160

208

mA

*Data taken as IRM with external IF Hybrid

Functional Diagram

The HMC568LC5 is ideal for:

• Point-to-Point and Point-to-Multi-Point Radio

• Military Radar, EW & ELINT

• Satellite Communications

Conversion Gain: 14 dB

Image Rejection: 33 dB

LO to RF Isolation: 55 dB

Noise Figure: 2 dB

Input IP3: -1 dBm

32 Lead 5x5mm SMT Package: 25mm2