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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
December 2000
HMJ9
High Dynamic Range FET Mixer
Product Description
The HMJ9 is a high dynamic range, GaAs FET
mixer. As an upconverter, this active FET mixer
realizes a typical third order intercept point of
+35 dBm at an LO drive level of +17 dBm. The
HMJ9 comes in a low cost, J-lead package.
Typical applications include frequency up/down
conversion for receivers and transmitters used
in cellular communications systems.
Product Features
+35 dBm IIP3
No External Matching Elements
Required
RF 860-900 MHz
LO 1140-1160 MHz
IF 250-280 MHz
+17 dBm Drive Level
+3V Bias (23 mA)
Low Cost Surface Mount J-Lead
Package
Functional Diagram
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.
HMJ9
Description
High Dynamic Range FET Mixer
(Available in tape and reel)
Fully Assembled Application Circuit
HMJ9-PCB
Function Pin No.
Ground
IF
Ground
+3V DC
Ground
1
2
3-9
10
11
Function Pin No.
Ground
LO
Ground
RF
Ground
12
13
14-20
21
22
1 2 3 4 5 6 7 8 9 1011
2221201918171615141312
Specifications
Parameter
Frequency Range:
RF
LO
IF
SSB Conversion Loss
Noise Figure
Isolation:
LO-RF
LO-IF
IF-RF
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
860
1140
250
900
1160
280
9.3
8.5
11
dB
dB
dB
dBm
18
40
20
50
25
35
32
RF = 900 MHz (0dBm)
dB
dB
dB
dBm
dBm
mA
10
9
15
23
17
23
35
Test conditions unless otherwise stated: RF = 900 MHz (-10 dBm), LO = 830 MHz (17 dBm), IF = 70 MHz and 25C.
The Communications Edge
Advanced Product Information