Alpha Industries, Inc. [978] 241-7000

• Fax [978] 241-7906 • Email sales@alphaind.com • www.alphaind.com

1

Specifications subject to change without notice. 1/02A

GaAs IC Reflective SPDT DC–6 GHz

Features

■ Single Broadband Design Covers

802.11a, 802.11b and 3.5 GHz Fixed

Wireless Applications

■ Positive Voltage Control (0, +5 V)

■ Low Insertion Loss Thru 6 GHz

■ High Linearity

■ QFN-12 3 x 3 mm Package

■ Low Cost

AS209-321

Description

The AS209-321 is a GaAs PHEMT reflective SPDT

applications. This device has been optimized to provide

excellent performance from DC–6 GHz. The AS209-321’s

high frequency, low loss and high linearity make it an

ideal choice for 802.11a, 802.11b and 3.5 GHz fixed

wireless LAN applications.

Parameter

Frequency

Min.

Typ.

Max.

Unit

Insertion Loss

DC–2 GHz

0.7

1.0

dB

DC–3 GHz

0.8

1.2

dB

DC–4 GHz

1.1

1.4

dB

DC–6 GHz

1.2

1.5

dB

Isolation

DC–2 GHz

30

34

dB

DC–3 GHz

28

32

dB

DC–4 GHz

25

29

dB

DC–6 GHz

20

24

dB

Return Loss (On State)

DC–2 GHz

15

18

dB

DC–3 GHz

12

15

dB

DC–4 GHz

10

13

dB

DC–6 GHz

10

13

dB

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

Preliminary

Parameter

Condition

Frequency

Min.

Typ.

Max.

Unit

Switching Characteristics

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

30

ns

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

50

ns

Video Feedthru

25

mV

Input Intermodulation Intercept Point (IIP3)

0/+5 V

1–4 GHz

46

dBm

Control Voltages

0

0.5

V

3.5

5.0

V

Operating Characteristics at 25°C (0, +5 V)

Characteristic

Value

RF Input Power

1 W Max. > 500 MHz

Control Voltage

-0.2 V, +6 V

Operating Temperature

-40°C to +85°C

Storage Temperature

-65°C to +150°C

Absolute Maximum Ratings