WJ Communications MH202 Datasheet

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MH202

High Dynamic Range Cellular Band MMIC Mixer

Product Features

• +30 dBm IIP3

• RF 890 – 960 MHz

• LO 640 – 760 MHz

• IF 200 – 250 MHz

• +17 dBm Drive Level

• Low Cost SOIC-8 Package

• No External Bias Required

The Communications Edge TM

Advanced Product Information

Product Description

The MH202 is a passive GaAs MESFET mixer that

rovides high dynamic range performance in a low
cost SOIC-8 package. WJ’s MH202 uses patented
techniques to realize +30 dBm Input IP3 at an LO
drive level of +17 dBm when used in a simple
application circuit as an upconverting configuration.
This single monolithic integrated circuit does no
require any 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 GSM frequency band.

Functional Diagram

1

2

3

4

Function Pin No.

* 4 external components (inductors & capacitors)

LO

IF & RF

GND

are required to diplex the signal

*

2
5

1,3,4,6,8

8

7

6

5

Specifications

Parameters1 Units Minimum Typical Maximum

Frequency Range:
RF MHz 890
LO MHz 640
IF MHz 200
SSB Conversion Loss dB
Noise Figure dB
Input IP32 dBm
Input P1dB dBm
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 low side LO at +17 dBm in an upconverting application at 25°C.

2. Input IP3 was measured with two tones with an input power of -5 dBm / tone separated by 1 MHz.

9.5

10

+30

TBD

30
55

TBD

-5

+17

960
760
250

10

Comments

Absolute Maximum Rating3 Application Circuit

RF

L2

15 nH

27 nH

C2

5.6 pF

L1

C1

12 pF

Parameters Rating

Operating Case Temperature

-40° to +85 °C

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

LO

All components are of size 0402

WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: [phone] • e-mail: [e-mail] • Web site: www.wj.com

April 2002

The Communications Edge TM

MH202

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: [phone] • e-mail: [e-mail] • Web site: www.wj.com

April 2002