3

3 - 70

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

HMC521

GaAs MMIC I/Q MIXER

8.5 - 13.5 GHz

v01.1007

General Description

Features

Typical Applications

The HMC521 is a compact I/Q MMIC mixer which can

be used as either an Image Reject Mixer or a Single

Sideband Upconverter. The chip utilizes two standard

Hittite double balanced mixer cells and a 90 degree

hybrid fabricated in a GaAs MESFET process. All

data shown below is taken with the chip mounted in

a 50 Ohm test fixture and includes the effects of 1 mil

diameter x 20 mil length bond wires on each port. A

low frequency quadrature hybrid was used to produce

a 100 MHz USB IF output. This product is a much

smaller alternative to hybrid style Image Reject Mixers

and Single Sideband Upconverter assemblies.

Parameter

Min.

Typ.

Max.

Min.

Typ.

Max.

Units

Frequency Range, RF/LO

8.5 - 13.5

10.5 - 11.7

GHz

Frequency Range, IF

DC - 3.5

DC - 3.5

GHz

Conversion Loss (As IRM)

8

10

7.5

9.5

dB

Image Rejection

20

30

30

40

dB

1 dB Compression (Input)

+14

+15

dBm

LO to RF Isolation

35

45

40

50

dB

LO to IF Isolation

17

22

18

23

dB

IP3 (Input)

+23

+24

dBm

Amplitude Balance

0.3

0.1

dB

Phase Balance

4

4

Deg

* Unless otherwise noted, all measurements performed as downconverter.

Functional Diagram

The HMC521 is ideal for:

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

• Military Radar

Wide IF Bandwidth: DC - 3.5 GHz

Image Rejection: 40 dB

LO to RF Isolation: 45 dB

High Input IP3: +24 dBm

Die Size: 1.49 x 1.14 x 0.1 mm