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 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
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
High Dynamic Range FET Mixer
Absolute Maximum Ratings
Parameter
Rating
Operating Case Temperature
-40 to +85C
Storage Temperature
-65 to +100C
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 25C.
The Communications Edge
TM
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
2275
2225
2250
2300
2290
2250
2270
2200
2300
2280
2220
2240
2260
2130
2070
2100
IF = 100 MHz
LO Frequency (MHz)
2040
2160
2140
2080
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
WJ Communications, Inc. Phone: 1-800-WJ1-4401 FAX: 408-433-5649 e-mail: sales@wj.com Web site: www.wj.com
September 2000
Specifications and information are subject to change without notice.
Caution! ESD sensitive device.
HMJ8
Outline Drawing
Land Pattern
Mounting Configuration
PDF 
ZIP