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MH203-PCB

更新时间： 2024-11-15 03:49:31
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4页 153K
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High Linearity Cellular-Band MMIC Mixer

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MH203  
High Linearity Cellular-Band MMIC Mixer  
Product Information  
Product Features  
Product Description  
Functional Diagram  
· +32 dBm IIP3  
The MH203 is a passive GaAs MESFET mixer that  
provides high dynamic range performance in a low  
cost SOIC-8 package. Its robustness and ease of use  
make it an ideal candidate for the core of any RFID reader  
application. It is compliant with EPC and ISO standards.  
WJ’s MH203 uses patented techniques to realize +32  
dBm Input IP3 at an LO drive level of +17 dBm  
when used in a simple application circuit as an  
upconverting or downconverting high-side LO  
configuration. This single monolithic integrated  
circuit does not require any external baluns or bias  
elements.  
1
8
7
6
5
· RF  
· IF  
800 – 960 MHz  
200 – 350 MHz  
2
3
· ISO & EPC compliant  
· High-side LO configuration  
· +17 dBm Drive Level  
4
· Low Cost SOIC-8 Package  
· No External Bias Required  
Function  
LO  
Pin No.  
2
7
IF & RF*  
GND  
1, 3, 4, 5, 6, 8  
Applications  
· RFID: UHF  
· Readers  
* External components (inductors &  
capacitors) are required to diplex the signal  
Typical applications include frequency up/down  
conversion, modulation and demodulation for  
·
·
·
Industrial  
Portable  
Handheld  
receivers and transmitters used in various current and  
next generation RFID technologies such as EPC, ISO,  
ETSI, and ANSI. Their small size makes them ideal for  
PCMCIA applications.  
Specifications1  
Parameters  
RF Frequency Range  
LO Frequency Range  
IF Frequency Range  
SSB Conversion Loss  
Noise Figure  
Units  
MHz  
MHz  
MHz  
dB  
Min  
800  
1000  
200  
Typ  
Max  
960  
1310  
350  
Comments  
8.2  
8.7  
+32  
+17.5  
30  
65  
25  
20  
17  
9.5  
dB  
See note 2  
See note 3  
Input IP3  
Input P1dB  
dBm  
dBm  
dB  
dB  
dB  
dB  
dB  
dB  
dBm  
+28  
LO – RF Isolation  
LO – IF Isolation  
RF – IF Isolation  
Return Loss: RF Port  
Return Loss: IF Port  
Return Loss: LO Port  
LO Drive Level  
25  
50  
See note 4  
See note 4  
12  
+17  
Test conditions unless otherwise noted:  
1. Performance is with the use of an application specific circuit (shown on page 4) with a high-side LO at +17 dBm in a downconverting application at 25° C.  
2. Assumes LO injection noise is filtered at the thermal noise floor, -174 dBm/Hz, at the RF, IF, and Image frequencies.  
3. IIP3 is measured with Df = 1 MHz with RFin = 0 dBm / tone.  
4. The return loss is measured after the diplexer which splits the RF and IF signals from the mixer. Details of the diplexing circuit is shown on page 4.  
Absolute Maximum Rating  
Ordering Information  
Parameter  
Rating  
-40° to +85 °C  
-65° to +100 °C  
+21 dBm  
Part No.  
MH203  
MH203-PCB  
Description  
Operating Case Temperature  
Cellular-band MMIC Mixer  
Storage Temperature  
Fully -Assembled Mixer Application Board  
Maximum Input LO Power6  
5. Operation of this device above any of these parameters may cause permanent damage.  
6. Total sum of the LO and RF port power should not exceed +23 dBm .  
Specifications and information are subject to change without notice  
February 2004  
WJ Communications, Inc · Phone 1-800- WJ1-4401 · FAX: 408-577-6621 · e- mail: sales@wj.com · Web site: www.wj.com  
1234

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