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High Dynamic Range FET Mixer
HMJ7
The Communications Edge TM
Product Features * +34 dBm IIP3 * 60 dBc Spurious Rejection in IF * * * * * *
Product Description
The HMJ7 is a high dynamic range, GaAs FET mixer. This active broadband mixer realizes a typical third order intercept point of +34 dBm at an LO drive level of +21 dBm. The HMJ7 also provides excellent suppression of spurious intermodulation products, greater than 60 dBc. The HMJ7 comes in a low cost, J-Lead package. The combination of high dynamic range and spurious suppression, makes the HMJ7 an ideal choice for CATV headend transmission equipment and other applications requiring a broadband mixer in the 1000 MHz to 2000 MHz frequency range.
Functional Diagram
22 21 2019 18171615 1413 12
Band RF 1000-2000 MHz LO 1000-2000 MHz IF 10-1000 MHz +21 dBm LO Drive Level +5V Bias (40 mA) Low Cost Surface Mount J-Lead Package
1 2 3 4 5 6 7 8 9 10 11 Function Pin No. Function Pin No. Ground 1 Ground 12 IF 2 LO 13 Ground 3-9 Ground 14-20 +5V DC 10 RF 21 Ground 11 Ground 22
Specifications
Parameter Frequency Range: RF LO IF SSB Conversion Loss Noise Figure Isolation: LO-RF LO-IF RF-IF IIP3 Return Loss: RF Port LO Port IF Port Spurious Rejection Input P1dB LO Drive Level DC Current at +5V Bias Units MHz MHz MHz dB dB dB dB dB dBm dB dB dB dBc dBm dBm mA Minimum 1000 1000 10 8.5 10.5 21 24 30 24 30 24 34 10 5 14 60 23 21 40 Typical Maximum 2000 2000 1000 9.5 Condition
RF = 1018 MHz (0dBm)
60
Test conditions unless otherwise stated: RF = 1018 MHz (-10 dBm), LO = 1017 MHz (21 dBm), IF = 50-860 MHz and 25C.
Absolute Maximum Ratings
Parameter Operating Case Temperature Storage Temperature Maximum Input Power Rating -40 to +85C -65 to +100C 25 dBm
Ordering Information
Part No. HMJ7 HMJ7-PCB Description High Dynamic Range FET Mixer (Available in tape and reel) Fully Assembled Application Circuit
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: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj.com
June 2002
HMJ7
Performance Charts
IIP3 vs. RF Frequency
45 Input Intercept Point (dBm)
Conversion Loss vs. RF Frequency
5 IF = 500 MHz Conversion Loss (dB)
40 IF = 500 MHz 35 IF = 10 MHz 30
7.5 IF = 10 MHz
10
12.5
25 1100
1250
1400 1550 1700 RF Frequency (MHz)
1850
2000
15 800
1000
1200
1400 1600 1800 RF Frequency (MHz)
2000
2200
Isolation vs. LO Frequency
50 40 Isolation (dB) 30 20 10 0 800 1000 1200 1400 1600 1800 LO Frequency (MHz) 2000 2200 L-R Isolation (dB) L-I 40
Isolation vs. RF Frequency
30 R-I
20
10
0 1000
1200
1400 1600 RF Frequency (MHz)
1800
2000
RF Return Loss vs. RF Frequency
0 0
LO Return Loss vs. LO Frequency
0
IF Return Loss vs. IF Frequency
RF Return Loss (dBm)
LO Return Loss (dB)
10
10
IF Return Loss (dB) 1200 1400 1600 LO Frequency (MHz) 1800 2000
5
5
5
10
15
15
15
20 1000
1200
1400 1600 RF Frequency (MHz)
1800
2000
20 1000
20 10 500 IF Frequency (MHz) 1000
WJ Communications, Inc. * Phone: 1-800-WJ1-4401 * FAX: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj.com
June 2002
HMJ7
Outline Drawing
Land Pattern
Mounting Configuration
Specifications and information are subject to change without notice.
Caution! ESD sensitive device.
WJ Communications, Inc. * Phone: 1-800-WJ1-4401 * FAX: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj.com
June 2002
WJ Communications, Inc. * Phone: 1-800-WJ1-4401 * FAX: 408-577-6621 * e-mail: sales@wj.com * Web site: www.wj.com

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