AT-220 参数 Datasheet PDF下载

AT-220

11/15/96 1:49 PM

Page 1

(Black plate)

Digital Attenuator, 30 dB, 4-Bit

DC - 2 GHz

Features

q

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AT-220

V3.00

SO-16

Pin #16

Attenuation 2-dB Steps to 30 dB

High Accuracy +/-3%

Temperature Stability +/-0.15 dB from -40°C to +85°C

Low Intermodulation Product: +50 dBm IP3

Low DC Power Consumption: 50 mW

Low Cost SOIC 16 Plastic Package

Tape and Reel Packaging Available1

.1497-.1574

.2284-.2440

(3.80-4.00)

(5.80-6.20)

.010(0.25) M B M

-B-

Pin #1

Orientation

Mark

.0532-.0688

(1.35-1.75)

-C-

0.3859-0.3937

(9.80-10.00)

-A-

.0099-.0196 x 45°

Chamfer

(0.25-0.50)

0°-8°

.0075-.0098

(0.19-0.25)

Description

M/A-COM’s AT-220 is a 4-bit, 2-dB step GaAs MMIC

digital attenuator in a low cost SOIC 16-lead surface

mount plastic package. The AT-220 is ideally suited for

use where high accuracy, fast switching, very low power

consumption and low intermodulation products are

required. Typical applications include radio and cellular

equipment, wireless LANs, GPS equipment and other

Gain/Level Control circuits.

The AT-220 is fabricated with a monolithic GaAs MMIC

using a mature 1-micron process. The process features

full chip passivation for increased performance and

reliability.

.004 (0.10)

.0040-.0098

0.050(1.27) BSC.

(0.10-0.25)

.013-.020 TYP

(0.33-0.51)

.010(0.25) M C A M B S

.016-.050

(0.40-1.27)

16-Lead SOP outline dimensions

Narrow body .150

(All dimensions per JEDEC No. MS-012-AC, Issue C)

Dimensions in ( ) are in mm.

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

.xx = ± 0.02 (.x = ±0.5)

Ordering Information

Part Number

AT-220 PIN

AT-220TR

AT-220RTR

Package

SOIC 16-Lead Plastic Package

Forward Tape & Reel

Reverse Tape & Reel

Electrical Specifications,

T

A

= 25°C

Parameter

Reference Insertion Loss

Test Conditions

2

DC – 0.1 GHz

DC – 0.1 GHz

DC – 1.0 GHz

DC – 2.0 GHz

DC – 1.0 GHz

DC – 2.0 GHz

Unit

Min.

Typ.

Max

dB

1.2

1.4

dB

1.5

1.7

dB

1.6

1.8

dB

1.8

2.1

±(0.15 dB + 3% of Attenuation Setting in dB) dB

±(0.30 dB + 3% of Attenuation Setting in dB) dB

1.2:1

10% to 90% RF, 90% to 10% RF

50% Control to 90% RF, 50% Control to 10% RF

In Band

Input Power

0.05 GHz

Input Power

0.5 – 2.0 GHz

Measured Relative

0.05 GHz

to Input Power

0.5 – 2.0 GHz

(For two-tone Input Power Up to +5 dBm)

Measured Relative

to Input Power

(For two-tone Input Power Up to +5 dBm)

0.05 GHz

0.5 – 2.0 GHz

nS

nS

mV

dBm

dBm

dBm

dBm

dBm

dBm

12

18

25

20

28

45

68

40

50

Attenuation Accuracy

3

VSWR

Trise, Tfall

Ton, Toff

Transients

1 dB

Compression

IP

2

IP

3

1. Refer to “Tape and Reel Packaging” Section, or contact factory.

2. All measurements at 1 GHz in a 50Ω system, unless otherwise specified.

3. Attenuation accuracy specifications apply with negative bias control and low inductance grounding.

Specifications Subject to Change Without Notice.

M/A-COM, Inc.

North America:

Tel. (800) 366-2266

Fax (800) 618-8883

s

1

Asia/Pacific: Tel. +81 3 3263 8761

Fax +81 3 3263 8769

s

Europe: Tel. +44 (1344) 869 595

Fax +44 (1344) 300 020