Package Outline

PSAM Series

PHASE SHIFTERS, ANALOG

500 to 2500 MHz / 0 to 180 and 0 to 360 / 10% Bandwidth / Voltage Controlled / SMA

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M ERRIM AC /41 Fairfield Pl.,W estCaldw ell,NJ,07006 /973-575-1300 /FAX 973-575-0531

GENERAL SPECIFICATIONS

Bandwidth:

Insertion Loss:

PSAM-3 series@ 1 GHz:

3 dB typ.

@ 2.5 GHz: 4 dB typ.

PSAM-4 series@ 1 GHz:

4 dB typ.

@ 2.5 GHz: 6 dB typ.

Modulation Rate:

Impedance:

50

Ω nom.

VSWR:PSAM-3 series:

2.0:1 max.

PSAM-4 series:

2.5:1 max.

Input Power:

0 dBm max.*

Control Voltage for

full range:

Connectors:

SMA Female

Weight, nominal:

4 oz. (112 g)

Phase Stability, typical:

PSAM-3 series:

0.1° per °C

PSAM-4 series:

0.2° per °C

Operating Temp:

-- 55° to +85°C

*Unit may be operated at +10 dBm in reduced control range

of 1.5 - 15 V. (+30 V no damage)

OPTIONAL SPECIFICATIONS

Lower Frequencies:

see PSEM series

Flatpack Version:

see PEF series

PRINCIPAL SPECIFICATIONS

Center

Phase

Model

Frequency,

Shift

Number

Range

PSAM-3-***B

0.5 to 2.5

PSAM-4-***B

0.5 to 2.5

General Notes:

1. The PSAM series of voltage controlled analog phase shifters controls phase shift using a voltage of 0 to +30V. On PSAM-3 models the full

range is from 0° to 180° and on PSAM-4 this is extended to 0° to 360° by cascading two similar 180° phase shifters.

2. Each phase shifter element employs Filmbrid

™ quadrature hybrids with matched pairs of varactor tuned LC networks acting as sliding short

circuits on the outputs. The electrical length of short effectively delays the reflected signal which appears at the isolated port of each quadrature

hybrid.

3. Similar phase shifters are available in a variety of packages including catalog models in flatpacks and Meri-Pacs.

4. Merrimac phase shifters are designed for high reliability and can be supplied screened to meet specific military and space applications.

15Feb96

NOTES:

1. Tolerance on 3 place decimals

2. Dimensions in inches over millimeters.