AS178-73 Alpha Industries, AS178-73 Datasheet

AS178-73

Manufacturer Part Number

AS178-73

Description

PHEMT GaAs IC High Linearity Positive Control SPDT Switch DC-2 GHz

Manufacturer

Alpha Industries

Datasheet

1.AS178-73.pdf (2 pages)

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PHEMT GaAs IC High Linearity Positive

Control SPDT Switch DC–2 GHz

Features

I High Linearity (50 dBm IP3 @ 0.9 GHz)

I Low Insertion Loss (0.35 dB @ 0.9 GHz)

I Isolation (21 dB @ 0.9 GHz)

I +3 V Operation

I Ultra Miniature SOT-6 Package

I PHEMT Process

Description

The AS178-73 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

insertion loss and ultra miniature package size are

required. It can be controlled with positive, negative or a

combination

implementations include antenna changeover, T/R and

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

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

1. All measurements made in a 50 Ω system, unless otherwise specified.

2. DC = 300 kHz.

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

Insertion Loss

Isolation

VSWR

Switching Characteristics

Input Power for 1 dB Compression

Intermodulation Intercept Point (IP3)

Control Voltages

@ 3 V

Parameter

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

both

voltages. Some

Parameter

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

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

Video Feedthru

0/+3 V

0/+5 V

For Two-tone Input Power +17 dBm

0/+3 V

0/+5 V

Low

High

= V

= 0 to 0.2 V @ 20 µA Max.

= +3 V @ 100 µA Max. to +5 V @ 200 µA Max.

High

Specifications subject to change without notice. 11/99A

± 0.2 V

Condition

standard

SOT-6

diversity switching over 2 W. The AS178-73 switch can be

used in many analog and digital wireless communication

systems including cellular, GSM and DECT applications.

4. Insertion loss state.

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

(0.15 mm)

(0.00 mm)

0.006

0.000

0.014 (0.350 mm)

0.020 (0.51 mm)

DC–0.5 GHz

DC–1.0 GHz

DC–2.0 GHz

DC–0.5 GHz

DC–1.0 GHz

DC–2.0 GHz

DC–1.0 GHz

DC–2.0 GHz

INDICATOR

Frequency

0.9 GHz

(1.90 mm REF.)

PIN 1

0.122 (3.10 mm)

0.106 (2.70 mm)

PIN 1

PIN 6

0.074

0.057 (1.45 mm)

0.035 (0.90 mm)

Min.

0.022 (0.61 mm)

0.004 (0.10 mm)

0.037 (0.95 mm) REF.

5.0˚ ± 1˚

1.2:1

1.3:1

Typ.

0.45

0.55

Typ.

100

+34

+38

+50

+57

0.071 (1.80 mm)

0.052 (1.30 mm)

5.0˚ ± 1˚

0.126 (3.20 mm)

0.087 (2.20 mm)

Preliminary

AS178-73

Max.

1.4:1

1.8:1

Max.

0.6

0.7

(0.30 mm)

(0.26 mm)

(0.10 mm)

0.012

TYP.

0.014

0.004

Unit

dBm

Related parts for AS178-73

AS178-73 Summary of contents

Page 1

... I Ultra Miniature SOT-6 Package I PHEMT Process Description The AS178- 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 insertion loss and ultra miniature package size are required ...

Page 2

... Specifications subject to change without notice. 11/99A 0.0 0.5 1.0 1.5 Frequency (GHz) Isolation vs. Frequency Characteristic 10 W Max. > 900 MHz 0/+7 V Control -40°C to +85°C -65°C to +150° GND must be supplied externally. BL AS178-73 2.0 2.5 Value -0 25°C kΩ ...

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