The Communications Edge™
HMJ2
High Dynamic Range FET Mixer
Product Features
Product Description
Functional Diagram
18 17 16 15 14 13 12 11 10
+37 dBm IIP3
The HMJ2 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 +17 dBm. The HMJ2 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 PCS systems.
•
•
No External Matching Elements
Required
RF 1850-1990 MHz
LO 1700-1940 MHz
IF 50-150 MHz
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•
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+17 dBm Drive Level
+3V Bias (25 mA)
1
2 3 4 5 6 7 8 9
Low Cost Surface Mount J-Lead
Package
Function Pin No. Function Pin No.
Ground
IF
1
2
Ground
LO
10
11
Ground
+3V DC
Ground
3-7
8
9
Ground 12-16
RF
17
18
Ground
Specifications
Parameter
Units
Minimum
Typical
Maximum
Condition
Frequency Range:
RF
LO
IF
MHz
MHz
MHz
1850
1700
50
1990
1940
150
SSB Conversion Loss
Noise Figure
dB
dB
9.0
10.3
10.5
Isolation:
LO-RF
LO-IF
dB
dB
dB
17
22
32
29
15
RF-IF
IIP3
dBm
32
37
RF = 1900 MHz (0dBm)
Return Loss:
RF Port
LO Port
IF Port
dB
dB
dB
12
10
14
Input P1dB
dBm
dBm
mA
23
17
25
LO Drive Level
DC Current at +3V Bias
35
Test conditions unless otherwise stated: RF = 1900 MHz (-10 dBm), LO = 1800 MHz (17 dBm), IF = 100 MHz and 25˚C.
Absolute Maximum Ratings
Ordering Information
Parameter
Rating
Part No.
Description
Operating Case Temperature
Storage Temperature
-40 to +85°C
-65 to +100°C
25 dBm
HMJ2
High Dynamic Range FET Mixer
(Available in tape and reel)
HMJ2-PCB
Fully Assembled Application Circuit
Maximum Input Power
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.
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-433-5649 • e-mail: sales@wj.com • Web site: www.wj.com
September 2000