鈥?/div>
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 pack-
age. 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 25藲C.
Absolute Maximum Ratings
Parameter
Operating Case Temperature
Storage Temperature
Maximum Input Power
Rating
-40 to +85擄C
-65 to +100擄C
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.
鈥?Phone: 1-800-WJ1-4401 鈥?FAX: 408-577-6621 鈥?e-mail: sales@wj.com 鈥?Web site: www.wj.com
June 2002
1
2
3
4
