Specifications and information are subject to change without notice

WJ Communications, Inc

x Phone 1-800-WJ1-4401 x FAX: 408-577-6621 x e-mail: sales@wj.com x Web site: www.wj.com

Page 1 of 3 May 2007

HMJ8

High Dynamic Range FET Mixer

Product Features

Elements Required

Product Description

The HMJ8 is a high dynamic range GaAs FET mixer.

This active FET mixer realizes a typical third order

intercept point of +37 dBm at an LO drive level of +18

dBm. The HMJ8 comes in a low cost, 18-pin J-Lead

package. Typical applications include frequency up/down

conversion, modulation and demodulation for receivers

and transmitters used in communication systems.

Functional Diagram

Function

Pin No.

IF

2

LO

11

RF

17

+3V

8

Ground

All other pins

Specifications

(1)

Parameter

Units

Min

Typ

Max

Condition

RF Frequency Range

MHz

2200 – 2300

LO Frequency Range

MHz

2060 – 2160

IF Frequency Range

MHz

50 – 150

SSB Conversion Loss

dB

8.0

9.0

Noise Figure

dB

10.5

LO-RF Isolation

dB

22

27

LO-IF Isolation

dB

20

30

RF-IF Isolation

dB

15

Input IP3

dBm

32

37

RF Return Loss

dB

11

LO Return Loss

dB

8.5

IF Return Loss

dB

14

Input P1dB

dBm

+23

LO Drive Level

dBm

+18

DC Current at +3V Bias

mA

22

35

1. Test conditions unless otherwise noted: 25 ºC, RF = 2250 MHz @ -10 dBm, LO = 2110 MHz @ +18 dBm, IF = 140 MHz

Absolute Maximum Rating

Ordering Information

Parameters

Rating

Part No.

Description

Operating Case Temperature

-40 to +85

qC

Storage Temperature

-65 to +100

qC

HMJ8

High Dynamic Range FET Mixer

Maximum Input Power

+25 dBm

HMJ8-PCB

Fully Assembled Application Circuit

1. Operation of this device above any of these parameters may cause permanent damage.

2. Total sum of LO port and RF port power should not exceed 25 dBm