WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-433-5649 • e-mail: sales@wj.com • Web site: www.wj.com

September 2000

HMJ8

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, J-lead package. Typical applica-

tions include frequency up/down conversion,

modulation and demodulation for receivers and

transmitters used in communication systems.

Product Features

Required

Package

Functional Diagram

18 17 16 15 14 13 12 11 10

123456

789

Function Pin No.

Ground

1

IF

2

Ground

3-7

+3V DC

8

Ground

9

Function Pin No.

Ground

10

LO

11

Ground

12-16

RF

17

Ground

18

High Dynamic Range FET Mixer

Absolute Maximum Ratings

Parameter

Rating

Operating Case Temperature

-40 to +85°C

Storage Temperature

-65 to +100°C

Maximum Input Power

25 dBm

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.

Ordering Information

Part No.

Description

HMJ8

High Dynamic Range FET Mixer

(Available in tape and reel)

HMJ8-PCB

Fully Assembled Application Circuit

Specifications

Parameter

Units

Minimum

Typical

Maximum

Condition

Frequency Range:

RF

MHz

2200

2300

LO

MHz

2060

2160

IF

MHz

50

150

SSB Conversion Loss

dB

8

9.0

Noise Figure

dB

10.5

Isolation:

LO-RF

dB

22

27

LO-IF

dB

22

30

RF-IF

dB

15

IIP3

dBm

32

37

Return Loss:

RF Port

dB

11

LO Port

dB

8.5

IF Port

dB

14

Input P1dB

dBm

23

LO Drive Level

dBm

18

DC Current at +3V Bias

mA

22

35

Test conditions unless otherwise stated: RF = 2250 MHz (-10 dBm), LO = 2110 MHz (18 dBm), IF = 140 MHz and 25˚C.