WJ Company HMJ8 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
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 applications 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
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.
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
HMJ8
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
IIP3 (dBm)
RF Frequency (MHz)
2230 2310
40
39
38
37
36
Conversion Loss
RF Frequency (MHz)
2190 2230 2270 2310
7.2
7.4
7.6
7.8
8.0
2200 22752225 2250 2300
22902250 2270
2200 2300
22802220 2240 2260
21302070 2100
IF = 100 MHz
LO Frequency (MHz)
2040 2160
21402080 2100 2120
2060 2160
Isolation (dB)
40
35
30
25
20
15
L-I
L-R
RF Frequency (MHz)
Isolation (dB)
25
20
15
10
RF Return Loss (dBm)
RF Frequency (MHz)
0
20
10
15
5
LO Return Loss (dB)
LO Frequency (MHz)
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 = 150 MHz
Performance Charts
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