ALPHA AS158-59 Datasheet

Alpha Industries, Inc. [781] 935-5150 • Fax [978] 241-7906 • Email [e-mail] • www.alphaind.com 1

Specifications subject to change without notice. 10/01A

Parameter Condition Frequency Min. Typ. Max. Unit

Switching Characteristics

5

Rise, On (10/90% or 90/10% RF) 60 nS
Fall, Off (50% CTL to 90/10% RF) 100 nS
Video Feedthru 50 mV

Input Power for 1 dB Compression 0/+5 V 0.9–2.5 GHz 35 dBm

Intermodulation Intercept Point (IP3) For Two-tone Input Power +27 dBm 0.9–2.5 GHz 55 dBm

Control Voltages V

Low

= 0 to 0.2 V @ 20 µA Max.

V

High

= 5 V @ 200 µA Max.

V

S

= V

High

± 0.2 V

GaAs IC High Linearity Positive Control
SPDT Switch DC–2.5 GHz

Features

■ High Linearity (55 dBm IP3 @ 1.9 GHz)

■ High Isolation (28 dB @ 1.9 GHz)

■ Complementary Control Voltages (0/+5 V)

■ Low DC Power Consumption

■ Small Low Cost MSOP-8 Plastic Package

MSOP-8

AS158-59

0.012 (0.30 mm)

PIN 1

PIN 1

INDICATOR

+ 0.006 (0.15 mm)

7.0˚

TYP.

0.038 (0.95 mm)

0.030 (0.75 mm)

0.017

(0.43 mm)

8.0˚

MAX.

0.028 (0.70 mm)

0.016 (0.40 mm)

0.007 (0.18 mm)

± 0.005 (0.12 mm)

0.006 (0.15 mm)

0.002 (0.05 mm)

- 0.002 (0.05 mm)

0.0256 (0.65 mm) TYP.

0.118 (3.00 mm)

± 0.004 (0.1 mm)

SQ.

0.193 (4.90 mm)
REF.

Description

The AS158-59 is an IC FET SPDT switch in a low cost
MSOP-8 plastic package. The AS158-59 features
extremely high linearity, low insertion loss and positive
voltage operation with very low DC power consumption.
Some standard implementations include antenna
changeover, T/R and diversity switching over 2 W. The
AS158-59 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

3

DC–0.5 GHz 0.35 0.4 dB

0.5–1.0 GHz 0.40 0.6 dB

1.0–2.0 GHz 0.65 0.8 dB

2.0–2.5 GHz 0.90 1.1

Isolation DC–0.5 GHz 22 25 dB

0.5–1.0 GHz 20 23 dB

1.0–2.0 GHz 24 28 dB

2.0–2.5 GHz 20 22

VSWR

4

DC–1.0 GHz 1.6:1

1.0–2.0 GHz 1.9:1

2.0–2.5 GHz 2.0:1

Electrical Specifications at 25°C (0, 5 V)

Operating Characteristics at 25°C (0, 5 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.

4. Insertion loss state.

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

2 Alpha Industries, Inc. [781] 935-5150 • Fax [978] 241-7906 • Email [e-mail] • www.alphaind.com

Specifications subject to change without notice. 10/01A

GaAs IC High Linearity Positive Control SPDT Switch DC–2.5 GHz AS158-59

Insertion Loss vs. Frequency

Frequency (GHz)

dB

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

1.1

1.0

0.9

0.8

DC 1.0 2.52.0

Isolation vs. Frequency

Frequency (GHz)

dB

DC 1.0 2.52.0

10

15

20

25

30

35

40

VSWR vs. Frequency

Frequency (GHz)

DC 1.0 2.52.0

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

1.8

1.9

2.0

Typical Performance (0, +5 V)

12 34

87 65

C

BL

C

BL

C

BL

V

1

V

2

V

S

J

1

J

3

J

2

GND

GND

Pin Out

DC blocking capacitors (CBL) must be supplied externally.
C

BL

= 100 pF for operation >500 MHz.

Characteristic Value

RF Input Power 6 W Max. > 900 MHz,

0/+8 V Control

Supply Voltage +12 V

Control Voltage -0.2 V, +8 V

Operating Temperature -40°C to +85°C

Storage Temperature -65°C to +150°C

Θ

JC

85°C/W

Absolute Maximum Ratings

V

1

V

2

J1–J

2

J1–J

3

V

High

0 Isolation Insertion Loss

0V

High

Insertion Loss Isolation

Truth Table

V

High

= +5 V (VS= V

High

± 0.2 V).