5

SPST Reflective AlGaAs PIN Diode Switch

Rev. V5

MA4AGSW1

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Visit www.macomtech.com for additional data sheets and product information.

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

MA4AGSW1 Schematic with 2-18 GHz Bias Network

Operation of the MA4AGSW1 Switch

The application of 0V or a negative DC voltage to either J1 or J2 provides insertion loss for the MA4AGSW1

SPST reflective switch. Isolation is achieved with +10 mA total D.C. current. The forward bias voltage at the diode

bias node is typically 1.4 volts for supply currents up to +30 mA and will not exceed 1.6 volts. The backside area

of the die is the RF and DC return ground plane. The bias network design should yield >30 dB RF to DC isolation.

Available for use in conjunction with M/A-COM Tech’s line of AlGaAs switches are two, fully integrated, broad-

band, monolithic, bias networks which may be used as an alternative to the suggested individual component bias

network shown below. Refer to datasheets for the MA4BN1840-1 and MA4BN1840-2 for additional information.

The lowest insertion loss, P1dB, IP

D.C. Bias node, which is achievable with a standard, ± 5V TTL Controlled PIN Diode Driver.

Note: The bias network can be connected to either J1 or J2

CONTROL LEVEL (DC CURRENT)

RF OUTPUT STATE

J1 or J2

J1-J2

-5V

Low Loss

+10mA

Isolation

TYPICAL DRIVER CONNECTIONS