High Dynamic Range FET Mixer
HMJ7
The Communications Edge
TM
Product Information
Product Features
x
+34 dBm IIP3
x
67 dBc 2x1 Spur Rejection in
IF Band
x
RF 1000 - 2000 MHz
x
LO 1000 - 2000 MHz
x
IF 10 - 1000 MHz
x
+5V Bias (40 mA)
x
+21 dBm LO Drive Level
x
SMT J-Lead Package
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, 22-pin 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
RF
LO
+5Vdc
IF
Applications
x
CATV Head-End Equipment
Function
IF
LO
RF
+5V
Ground
Pin No.
2
13
21
10
All other pins
Specifications
(1)
Parameter
RF Frequency Range
LO Frequency Range
IF Frequency Range
SSB Conversion Loss
Noise Figure
LO-RF Isolation
LO-IF Isolation
RF-IF Isolation
Input IP3
RF Return Loss
LO Return Loss
IF Return Loss
Spurious Rejection
(2)
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
Min
Typ
1000 – 2000
1000 – 2000
10 – 1000
8.5
10.5
24
30
24
34
10
5
14
67
+23
+21
40
Max
Condition
9.5
21
24
30
RF = 1018 MHz @ 0 dBm
60
60
1. Test conditions unless otherwise noted: 25 ºC, RF = 1018.75 MHz @ 0 dBm, LO = 21 dBm, IF = 50, 650, 860 MHz in a high-side LO configuration.
2. The 2x1 spur is tested where the IM spur = 2 * RF input – LO, where RF input = 1018.75 MHz @ -5 dBm, LO = 1568.75 & 1668.75 MHz @ 21 dBm, IM spur = output frequency. The IM spur level is
specified in dBc with respect to the desired IF frequency calculated: IF output = LO - RF input.
Absolute Maximum Rating
Operating Case Temperature
Storage Temperature
Maximum Input Power
Ordering Information
HMJ7
HMJ7-PCB
Parameters
-40 to +85
qC
-65 to +100
qC
+25 dBm
Rating
Part No.
High Dynamic Range FET Mixer
Fully Assembled Application Circuit
Description
Operation of this device above any of these parameters may cause permanent damage.
Specifications and information are subject to change without notice
WJ Communications, Inc
Phone 1-800-WJ1-4401
FAX: 408-577-6621
e-mail: sales@wj.com
Web site: www.wj.com
Page 1 of 3 January 2006
WJCI [ WJ COMMUNICATION. INC. ]
