MH1
High Dynamic Range MMIC Mixer
The Communications Edge™
Product Information
Product Features
• +30 dBm IIP3
• No External Matching Elements
Required
• RF 1700-2000 MHz
• LO 1450-1950 MHz
• IF 50-250 MHz IF
• +17 dBm Drive Level
• Low Cost SOIC-8 Package
• No External Bias Required
Product Description
The MH1 is a passive FET mixer that provides
high dynamic range performance in a low cost
SOIC-8 package. WJ’s FET based MH1 uses
patented techniques to realize +30 dBm IIP3 at
an LO drive level of +17 dBm. The product is
fully self contained and does not require any
external bias, matching or decoupling elements.
Typical applications include frequency up/down
conversion, modulation and demodulation for
receivers and transmitters used in PCS,
DCS1800 and PHS systems.
Functional Diagram
43 21
56 78
Function
RF
LO
IF
Ground
Pin No.
7
2
5
1,3,4,6,8
Specifications
Parameter
Units Minimum Typical Maximum
Condition
Frequency Range:
RF
LO
IF
MHz
MHz
MHz
1700
1450
50
2000
1950
250
SSB Conversion Loss
dB
8.8
10.5
Noise Figure
dB
9.1
Isolation:
L-R
L-I
R-I
dB
21
26
dB
27
38
dB
12
18
IIP3
dBm
+28
+30
Return Loss:
RF Port
dB
15
LO Port
dB
13
IF Port
dB
13
Input P1dB
dBm
18
LO Drive Level
dBm
17
Test conditions unless otherwise noted, RF / IF = 1700 / 250, 2000 / 50, and 2000 / 250 MHz with a low-side LO at 17 dBm in a downconverting application at 25°C.
Input IP3 is measured with two tones with an input power of +5 dBm/tone separated by 10 MHz.
Absolute Maximum Ratings1
Parameter
Rating
Operating Case Temperature
Storage Temperature
Maximum Input LO Power2
-40 to +85°C
-65 to +100°C
+21 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 to exceed +23 dBm.
Ordering Information
Part No.
MH1
MH1-PCB
Description
High Dynamic Range MMIC Mixer
(Available in tape and reel)
Fully Assembled Application Circuit
WJ Communications, Inc. • Phone: 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com
October 2003