M A COM SW-261 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

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

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

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

VSWR 5-2000 MHz 2.5:1 Max

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

Isolation 5-2000 MHz 35 dB Min

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

Operating Characteristics

Impedance 50 Ohms Nominal
Switching Characteristics

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

Input Power for 1 dB Compression

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

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

Intercept Points IP2 IP3
500-2000 MHz +68 +46 dBm Typ
50MHz +60 +40 dBm Typ

Bias Power

Environmental
MIL-STD-883 screening available.

* All specifications apply when operated with bias voltages of +5

VDC and 50 ohm impedance at all RF ports.

+5 VDC @ 0.30 mA Typ, 1 mA Max

SW-261

FP-17

0.150

(3.81) TYP

PIN 1

ODD

COLORED

BEAD

0.015 ± 0.005
(0.38 ± .13)

DIA 16 PLACES

0.067
(1.70)

Unless Otherwise Noted:.xxx = ±0.010 (.xx = ±0.25)

WEIGHT (APPROX.): 0.21 OUNCES 6 GRAMS

Ordering Information

Model No. Package

SW-261 PIN Flatpack

7 EQUAL SPACES

@ 0.100 (2.54)

TOLERANCE

NON-CUMULATIVE

RF1 RF RF4

RF2 +

Dimensions in ( ) are in mm.

1234

1.00

(25.40)

.xx = ±0.02 (.x = ±0.5)

RF3

0.325
(8.26)

MIN

0.80

(20.32)

PIN 16

(0.150)

(3.81)

MAX

V2.00

M/A-COM, Inc.

Specifications Subject to Change Without Notice.

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

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

1

Matched GaAs SP4T Switch

SW-261

V2.00

Truth Table

Control Input Condition of Switch

“1” = Logic High RF Common To

Each RF PORT

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

Typical Performance

INSERTION LOSS

2.0

1.5

1.0

LOSS (dB)

0.5

0.0

0.005 0.5 1.0 1.5 2.0

+85°C

-55°C

+25°C

Schematic

VSWR

2.0

1.8

1.6

1.4

VSWR

1.2

1.0

0.005 0.5 1.0 1.5 2.0

FREQUENCY (GHz)

ISOLATION

80
70
60
50
40
30

ISOLATION (dB)

20

0.005 0.5 1.0 1.5 2.0

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]