WJ Communications MH203 Datasheet
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MH203
High Dynamic Range Cellular Band MMIC Mixer
Product Features
• +30 dBm IIP3
• RF 800 – 915 MHz
• LO 1100 – 1265 MHz
• IF 300 – 350 MHz
• +17 dBm Drive Level
• Low Cost SOIC-8 Package
• No External Bias Required
Specifications
The Communications Edge TM
Advanced Product Information
Product Description
The MH203 is a passive GaAs MESFET mixer that
provides high dynamic range performance in a low
cost SOIC-8 package. WJ’s MH203 uses patented
techniques to realize greater than +30 dBm Input
IP3 at an LO drive level of +17 dBm when used in a
simple application circuit as an upconverting o
downconverting configuration. This single
monolithic integrated circuit does not require an
external baluns or bias elements.
Typical applications include frequency up/down
conversion, modulation and demodulation fo
receivers and transmitters used in 2.5G and 3G
systems using the cellular and GSM frequenc
bands.
Functional Diagram
1
2
3
4
Function Pin No.
LO
IF & RF
GND
* 4 external components (inductors & capacitors)
are required to diplex the signal
8
7
6
5
*
2
5
1,3,4,6,8
Parameters1 Units Minimum Typical Maximum
Comments
Frequency Range:
RF MHz 800
LO MHz 1100
IF MHz 300
SSB Conversion Loss dB
Noise Figure dB
Input IP32 dBm
Input P1dB dBm
9.0
9.5
+30
TBD
915
1265
350
9.5
Isolation:
L-R dB
L-I dB
R-I dB
Return Loss: dB
LO Port
LO Drive Level dBm
1. Data was taken using an application board shown on the following page, with a high side LO at +17 dBm in an downconverting application at 25°C.
2. Input IP3 was measured with two tones with an input power of -5 dBm / tone separated by 1 MHz.
25
50
TBD
-8
+17
Absolute Maximum Rating3 Application Circuit
RF
L2
12 nH
23 nH
C2
3.9 pF
L1
C1
8.2 pF
Parameters Rating
Operating Case Temperature
Storage Temperature -65° to +100 °C
4
Maximum Input LO Power
3. Operation of this device above any of these parameters may cause permanent damage.
4. Total sum of LO port and RF port power should not to exceed +23 dBm.
+21 dBm
-40° to +85 °C
LO
All components are of size 0402
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
April 2002
The Communications Edge TM
MH203
High Dynamic Range Cellular Band MMIC Mixer
Advanced Product Information
This document contains information on a new product.
Specifications and information are subject to change without notice.
WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6620 • e-mail: sales@wj.com • Web site: www.wj.com
April 2002
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