ALPHA AS190-73 Datasheet

Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [e-mail] • www.alphaind.com 1

Specifications subject to change without notice. 1/00A

PHEMT GaAs IC High Linearity 3 V
Control SPDT Switch 0.1–2 GHz

Features

■ +2.5 to +5 V Linear Operation
P

-0.1 dB

≥ 37 dbm

■ Harmonics H

2

, H3> 65 dBc @

P

IN

= 34.5 dBm

■ Low Insertion Loss (0.5 dB @ 0.9 GHz)

■ Ultra Miniature SOT-6 Package

■ PHEMT Process

SOT-6

AS190-73

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 AS190-73 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, 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 AS190-73 switch can be
used in many analog and digital wireless communication
systems including cellular, GSM and DECT applications.

Parameter

1

Frequency Min. Typ. Max. Unit

Insertion Loss

2

0.1–0.5 GHz 0.25 0.40 dB

0.5–1.0 GHz 0.35 0.50 dB

1.0–2.0 GHz 0.75 0.90 dB

Isolation 0.1–0.5 GHz 22 24 dB

0.5–1.0 GHz 15 17 dB

1.0–2.0 GHz 10 12 dB

VSWR

3

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)

Preliminary

Parameter Condition Frequency Min. Typ. Max. Unit

Switching Characteristics

4

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 +37 dBm

Harmonics H2, H

3

PIN= 34.5 dBm 0.9 GHz +70 dBc

Control Voltages V

Low

= 0 to 0.2 V @ 20 µA Max.

V

High

= +2.5 V @ 100 µA Max. to +5 V @ 200 µA Max.

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.

PHEMT GaAs IC High Linearity 3 V Control SPDT Switch 0.1–2 GHz AS190-73

2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [e-mail] • www.alphaind.com

Specifications subject to change without notice. 1/00A

C

BL

C

BL

V

1

J

1

V

2

J

2

GND

J

3

C

BL

12 3

65 4

Pin Out

V

1

V

2

J1–J

2

J1–J

3

0V

High

Isolation Insertion Loss

V

High

0 Insertion Loss Isolation

Truth Table

V

High

= +2.5 to +5 V.

DC blocking capacitors (C

BL

) must be supplied externally.

C

BL

= 100 pF for operating frequency >500 MHz.

Insertion Loss (dB)

Frequency (GHz)

Insertion Loss vs. Frequency

-1.0

-0.9

-0.8

-0.7

-0.6

-0.5

-0.4

-0.3

-0.2

-0.1

0

0 0.5 1.0 1.5 2.0

Frequency (GHz)

Isolation vs. Frequency

Isolation (dB)

0 0.5 1.0 1.5 2.0

-40

-35

-30

-25

-20

-15

-10

-5

0

Frequency (GHz)

VSWR vs. Frequency

1.0

1.2

1.4

1.6

1.8

2.0

VSWR

0 0.5 1.0 1.5 2.0

H

2

, H

3

(dBc)

V

CTRL

(V)

Harmonics vs. Control Voltage

34.5 dBm 900 MHz GSM Pulse

30

35

40

45

50

55

60

65

70

75

80

2.0 2.5 3.0 3.5 4.0 4.5 5.0

H

2

H

3

Typical Performance Data