Alpha Industries, Inc. [781] 935-5150

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1

Specifications subject to change without notice. 8/00A

PHEMT GaAs IC High Linearity 3 V

Control SPDT Switch 0.1–2 GHz

Features

s +2.5 to +5 V Linear Operation

s Low Insertion Loss (0.5 dB @ 0.9 GHz)

s High Isolation (27 dB @ 0.9 GHz)

s Ultra Miniature SOT-6 Package

s PHEMT Process

SOT-6

AS191-73

0.074

(1.90 mm REF.)

0.071 (1.80 mm)

0.052 (1.30 mm)

0.037 (0.95 mm) REF.

0.122 (3.10 mm)

0.106 (2.70 mm)

0.006

(0.15 mm)

0.000

(0.00 mm)

0.057 (1.45 mm)

0.035 (0.90 mm)

0.020 (0.51 mm)

0.014 (0.350 mm)

0.126 (3.20 mm)

0.087 (2.20 mm)

PIN 6

PIN 1

PIN 1

INDICATOR

0.022 (0.61 mm)

0.004 (0.10 mm)

0.014

(0.26 mm)

0.004

(0.10 mm)

0.012

(0.30 mm)

TYP.

5.0˚ ± 1˚

5.0˚ ± 1˚

Description

The AS191-73 is a PHEMT GaAs FET IC high linearity

SPDT switch in a SOT-6 plastic package. This switch has

been designed for use where extremely high linearity, low

control voltage, high isolation, low insertion loss and ultra

miniature package size are required. It can be controlled

with positive, negative or a combination of both voltages.

Some standard implementations include antenna

changeover, T/R and diversity switching over 3 W. The

Frequency

Min.

Typ.

Max.

Unit

0.1–0.5 GHz

0.45

0.60

dB

0.5–1.0 GHz

0.50

0.60

dB

1.0–2.0 GHz

0.55

0.70

dB

Isolation

0.1–0.5 GHz

31

33

dB

0.5–1.0 GHz

25

27

dB

1.0–2.0 GHz

19

21

dB

0.1–1.0 GHz

1.2:1

dB

1.0–2.0 GHz

1.3:1

dB

Electrical Specifications at 25°C (0, +3 V)

Parameter

Condition

Frequency

Min.

Typ.

Max.

Unit

Rise, Fall (10/90% or 90/10% RF)

60

ns

On, Off (50% CTL to 90/10% RF)

100

ns

Video Feedthru

50

mV

Input Power for -0.1 dB Compression

0/+3 V

0.9 GHz

+35

dBm

0.9 GHz

+65

dBc

Control Voltages

Operating Characteristics at 25°C (0, +3 V)

1. All measurements made in a 50

Ω system, unless otherwise specified.

2. Insertion loss changes by 0.003 dB/°C.

3. Insertion loss state.

4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.

AS191-73 switch can be used in many analog and digital

wireless communication systems including cellular, GSM

and DECT applications.