Preliminary Data Sheet

1.0

FMS2003 ES1

SP4T Reflective pHEMT MMIC Switch

FMS2003 ES1

Description

The FMS2003 is a linear high power Single-Pole Four-Throw

MMIC Antenna Switch designed for use in Dual-band

handsets GSM900 and GSM1800/1900 combinations. The

switch is designed with one antenna port that can be routed

Features

· Low insertion loss (0.5 dB @ 900 MHz)

· Operation down to 2V

· 4 control lines. Single positive voltage supply

· Low harmonics (Typical -67dBc at Pin=+34.5dBm)

· High Isolation (30 dB @ 900 MHz)

Parameter

Symbol

Condition

Min.

Typ.

Max.

Unit

1

0.5

dB

2

0.6

dB

Insertion Loss

IL

3

0.6

dB

1

35

dB

Isolation – Ant on.

ISO

2

26

dB

S11

S11

1

-25

dB

S11

S11

2

-25

dB

2fo

3

-78

dBc

Harmonics

3fo

3

-72

dBc

Leakage Current - Tx

3

3.2

mA

Leakage Current – Rx

3

3.4

mA

Condition

1

Small signal, DC – 1GHz, Vctrl = 2.7V/0V

2

Small signal, 1-2 GHz, Vctrl = 2.7V/0V

3

Input power=34.5dBm, EGSM Tx 880-915MHz, Vctrl=2.7V/0V

GaAs MMIC’s are ESD sensitive devices. Special handling precautions are required.

Truth Table

Control Voltage

Operation

Vctrl 1

Vctrl 2

Vctrl 3

Vctrl 4

RF1-Ant

High

Low

Low

Low

RF2-Ant

Low

High

Low

Low

RF3-Ant

Low

Low

High

Low

RF4-Ant

Low

Low

Low

High

Control values

Control

Min

Typ.

Max

Unit

High

2.7

V

Low

0.0

V

Preliminary specifications subject to change without notice

Filtronic Compound Semiconductors Ltd, Heighington Lane Business Park, Newton Aycliffe, Co Durham. DL5 6JW.