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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
High Dynamic Range FET Mixer
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
+37 dBm IIP3
No External Matching Elements
Required
RF 2200-2300 MHz
LO 2060-2160 MHz
IF 50-150 MHz
+18 dBm Drive Level
+3V Bias (22 mA)
Low Cost Surface Mount J-Lead
Package
Functional Diagram
18 17 16 15 14 13 12 11 10
1 2 3 4 5 6
7 8 9
Function Pin No.
Ground
IF
Ground
+3V DC
Ground
1
2
3-7
8
9
Function Pin No.
Ground
LO
Ground
RF
Ground
10
11
12-16
17
18
Absolute Maximum Ratings
Parameter
Operating Case Temperature
Storage Temperature
Maximum Input Power
Rating
-40 to +85°C
-65 to +100°C
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.
HMJ8
Description
High Dynamic Range FET Mixer
(Available in tape and reel)
Fully Assembled Application Circuit
HMJ8-PCB
Specifications
Parameter
Frequency Range:
RF
LO
IF
SSB Conversion Loss
Noise Figure
Isolation:
LO-RF
LO-IF
RF-IF
IIP3
Return Loss:
RF Port
LO Port
IF Port
Input P1dB
LO Drive Level
DC Current at +3V Bias
Units
Minimum
Typical
Maximum
Condition
MHz
MHz
MHz
dB
dB
2200
2060
50
2300
2160
150
9.0
8
10.5
dB
dB
dB
dBm
22
22
27
30
15
37
32
dB
dB
dB
dBm
dBm
mA
11
8.5
14
23
18
22
35
Test conditions unless otherwise stated: RF = 2250 MHz (-10 dBm), LO = 2110 MHz (18 dBm), IF = 140 MHz and 25C.
The Communications Edge