Datasheet > AA220-25

AA220-25

更新时间： 2024-10-18 22:05:15

品牌	Logo	应用领域
阿尔法 - ALPHA		射频微波衰减器
页数	文件大小	规格书
2页	41K
描述
GaAs IC 4 Bit Digital Attenuator 2 dB LSB DC-2 GHz

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AA220-25 数据手册

GaAs IC 4 Bit Digital Attenuator

2 dB LSB DC–2 GHz

AA220-25

(Previously AD220-25)*

Features

SOIC-16

I Attenuation in 2 dB Steps to 30 dB

with High Accuracy

0.050

(1.27 mm) BSC

PIN 16

I Low Cost SOIC-16 Plastic Package

I Low DC Power Consumption

0.244 (6.20 mm)

0.228 (5.80 mm)

PIN 1

INDICATOR

PIN 1

0.020 (0.51 mm)

0.013 (0.33 mm)

Description

0.016 MAX.

(0.41 mm)

x 45˚

The AD220-25 is an IC FET digital attenuator consisting

of four monolithic attenuators with LSB of 2 dB and a total

attenuation of 30 dB with all attenuators connected.

0.068

(1.73 mm) MAX.

0.049 (1.24 mm)

0.016 (0.41 mm)

CHAMFER

8˚ MAX.

The AD220-25 is particularly well suited where high

attenuation accuracy, low insertion loss and low

intermodulation products are required.Typical applications

include cellular, radio, wireless data, wireless local loop

and other gain level control circuits.

0.394 (10.00 mm)

0.386 (9.80 mm)

0.158 (4.00 mm)

0.150 (3.80 mm)

0.010 (0.25 mm)

0.0098 (0.25 mm)

0.0075 (0.19 mm)

0.004 (0.10 mm)

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

Parameter

Frequency

Min.

Typ.

Max.

Unit

Insertion Loss

DC–0.1 GHz

DC–0.5 GHz

DC–1.0 GHz

DC–2.0 GHz

1.2

1.4

1.5

2.0

1.4

1.7

1.8

2.5

Attenuation Range

Attenuation Accuracy

DC–1.0 GHz

DC–2.0 GHz

(0.2 ꢀ 3ꢁ of

Attenuation Setting in dB)

(0.3 ꢀ 3ꢁ of

Attenuation Setting in dB)

VSWR (I/O)

DC–1.0 GHz

DC–2.0 GHz

1.4:1

1.6:1

2.0:1

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

Parameter

Condition

Frequency

Min.

Typ.

Max.

Unit

Switching Characteristics

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

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

Video Feedthru

Input Power for 1 dB Compression

Intermodulation Intercept Point (IP3)

Control Voltages

0.50–2.0 GHz

0.05 GHz

+28

+22

dBm

For Two-tone Input Power +5 dBm

0.50–2.0 GHz

0.05 GHz

+48

+38

dBm

= 0 to -0.2 V @ 20 µA Max.

Low

= -5 V @ 50 µA Typ. to -8 V @ 200 µA Max.

High

4. Attenuation referenced to insertion loss.

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

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.

*Due to conflict with another company’s product numbering system, Alpha’s attenuator products starting with the letters “AD” are being changed to “AA”.

Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email sales@alphaind.com • www.alphaind.com

Specifications subject to change without notice. 10/99A

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