M A COM SW-254 Datasheet

Matched GaAs SP4T Switch
5 - 2000 MHz

Features

●

Low Insertion Loss, 1.0 dB Typical

●

Fast Switching Speed, 20 ns Typical

●

Ultra Low DC Power Consumption, 0.3 mA Typical

●

Integral TTL Driver

Guaranteed Specifications * (From -55°C to +85°C)

Frequency Range 5-2000 MHz
Insertion Loss 5-2000 MHz 2.1 dB Max

VSWR 5-2000 MHz 2.3:1 Max

Isolation 5-2000 MHz 35 dB Min

Operating Characteristics

Impedance 50 Ohms Nominal
Switching Characteristics

Trise, Tfall 7 ns
Ton, Toff (50% CTL to 90/10% RF) 20 ns
Transients (In-Band) 80 mV

Input Power for 1 dB Compression

500-2000 MHz +27 dBm Typ
50 MHz +21 dBm Typ

Intermodulation Intercept Point
(for two-tone input power up to +13 dBm)

Intercept Points IP
500-2000 MHz +68 +46 dBm Typ

50 MHz +60 +40 dBm Typ

Bias Power +5 VDC @ 0.30 mA Typ, 1 mA Max
Environmental

MIL-STD-883 screening available.
* All specifications apply when operated with bias voltage of +5 VDC

and 50 ohm impedance at all RF ports.

5-1000 MHz 1.6 dB Max
5-500 MHz 1.4 dB Max

5-1000 MHz 1.8:1 Max
5-500 MHz 1.4:1 Max

5-1000 MHz 36 dB Min
5-500 MHz 42 dB Min

2

IP

3

DI-5

Unless Otherwise Noted: .xxx = ±0.010 (.xx = ±0.25)
WEIGHT (APPROX.): 0.26 OUNCES 73 GRAMS

Dimensions in ( ) are in mm.

.xx = ±0.02 (.x = ±0.5)

Schematic

RF 4
GND
GND

RF COMMON

GND
GND
GND
RF 1

50

50

50
50

SW-254

V2.00

RF 3
CTL 4
CTL 3
CTL 2
CTL 1
+VDC
NC
RF 2

Truth Table

Control Input Condition of Switch

“1” = Logic High
TTL

CTL1 CTL2 CTL3 CTL4 RF1 RF2 RF3 RF4

1 0 0 0 ON OFF OFF OFF
0 1 0 0 OFF ON OFF OFF
0 0 1 0 OFF OFF ON OFF
0 0 0 1 OFF OFF OFF ON

Specifications Subject to Change Without Notice.

RF Common To Each RF Port

M/A-COM, Inc.

North America: Tel. [phone] ■ Asia/Pacific: Tel. [phone] ■ Europe: Tel. [phone]

Fax [phone] Fax [phone] Fax [phone]

Ordering Information

Model No. Package

SW-254 PIN Dual Inline

1

Matched GaAs SP4T Switch

Typical Performance

INSERTION LOSS

2.0

1.5

1.0

0.5

LOSS (dB)

0

0.005 0.5 1.0 1.5 2.0

ISOLATION

80
70
60
50
40
30
20

ISOLATION (dB)

0.005 0.5 1.0 1.5 2.0

VSWR

2.0

1.8

1.6

1.4

VSWR

1.2

+85°C

+25°C

SW-254

V2.00

-55°C

0.005 0.5 1.0 1.5 2.0
FREQUENCY GHZ

2

Specifications Subject to Change Without Notice.

M/A-COM, Inc.

North America: Tel. [phone] ■ Asia/Pacific: Tel. [phone] ■ Europe: Tel. [phone]

Fax [phone] Fax [phone] Fax [phone]