WJ Company HMJ2 Datasheet
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX:408-433-5649 • e-mail:sales@wj.com • Web site: www.wj.com
September 2000
HMJ2
Product Description
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 applications include frequency up/down conversion,
modulation and demodulation for receivers and
transmitters used in PCS systems.
Product Features
•
+37 dBm IIP3
•
No External Matching Elements
Required
•
RF 1850-1990 MHz
•
LO 1700-1940 MHz
•
IF 50-150 MHz
•
+17 dBm Drive Level
•
+3V Bias (25 mA)
•
Low Cost Surface Mount J-Lead
Package
Functional Diagram
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
HMJ2 High Dynamic Range FET Mixer
(Available in tape and reel)
HMJ2-PCB Fully Assembled Application Circuit
Specifications
Parameter Units Minimum Typical Maximum Condition
Frequency Range:
RF MHz 1850 1990
LO MHz 1700 1940
IF MHz 50 150
SSB Conversion Loss dB 9.0 10.3
Noise Figure dB 10.5
Isolation:
LO-RF dB 17 32
LO-IF dB 22 29
RF-IF dB 15
IIP3 dBm 32 37 RF = 1900 MHz (0dBm)
Return Loss:
RF Port dB 12
LO Port dB 10
IF Port dB 14
Input P1dB dBm 23
LO Drive Level dBm 17
DC Current at +3V Bias mA 25 35
Test conditions unless otherwise stated: RF = 1900 MHz (-10 dBm), LO = 1800 MHz (17 dBm), IF = 100 MHz and 25˚C.
The Communications Edge
™
18 17 16 15 14 13 12 11 10
123456789
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
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX:408-433-5649 • e-mail:sales@wj.com • Web site: www.wj.com
September 2000
HMJ2
Conversion Loss vs. RF Frequency IIP3 vs. RF Frequency
RF Return Loss vs. RF Frequency
IF Return Loss vs. IF Frequency
LO Return Loss vs. LO Frequency
Isolation vs. LO Frequency
Isolation vs. RF Frequency
Input Intercept Point (dBm)
RF Frequency (MHz)
1850 1900 1950 1990
50
45
40
35
30
Conversion Loss (dB)
RF Frequency (MHz)
1850 1890 1930 19701870 1910 1950 1990
5.0
7.5
10.0
12.5
15.0
IF = 50 MHz
LO Frequency (MHz)
1700 1730 1760 1790 1820 1850 1880 1910 1940
Isolation (dB)
50
40
30
20
10
0
L-I
L-R
RF Frequency (MHz)
1850 1900 1950 1990
Isolation (dB)
30
20
10
0
R-I
1890 1930 19701870 1910 1950
RF Return Loss (dBm)
RF Frequency (MHz)
1850 1990
0
20
10
15
5
1760 1820 18801730 1790 1850
LO Return Loss (dB)
LO Frequency (MHz)
1700 19401910
0
20
10
15
5
IF Frequency (MHz)
IF Return Loss (dB)
50 70 90 110 130 150
0
20
15
10
5
IF = 150 MHz
IF = 100 MHz
IF = 50 MHz
IF = 150 MHz
IF = 100 MHz
Performance Charts
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