Datasheet > AT-267TR

AT-267TR

更新时间： 2024-10-27 22:19:59

品牌	Logo	应用领域
泰科 - TE		衰减器
页数	文件大小	规格书
3页	84K
描述
Digital Attenuator, 1 Bit, 15 dB Step DC - 2.0 GHz

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数据手册

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AT-267TR 数据手册

Digital Attenuator, 1 Bit, 15 dB Step

V 2.00

DC - 2.0 GHz

Features

Functional Schematic



Single 15 dB Step

Low Loss, 0.3 dB Typical @ 900 MHz

2.7 to 5.0 Volt Operation

Insertion Loss, Attenuation insensitive to Control

Voltage

PIN 5



Low Cost SOT-25 Plastic Package

Tape and Reel Packaging Available

Description

M/A-COM’s AT-267 is a 1 bit, 15 dB step GaAs MMIC

digital attenuator in a low cost SOT-25 5 lead surface

mount plastic package. The AT-267 is ideally suited for

use where high accuracy, very low power consumption and

low intermodulation products are required.

PIN 1

RF1

GND

RF2

Typical applications include wireless handsets, base

stations, wireless LAN equipment, GPS receivers and any

RF applications with automatic gain/level control circuits.

Positive Control Voltage

The AT-267 is fabricated as a monolithic GaAs integrated

circuit using a proven self-aligned gate process. The

process features full chip passivation for performance and

reliability.

Truth Table ^{1, 2, 3}

Atten

Mode

(Control)

Positive¹

0 ± 0.2 V

+2.5 V to +5 V

-Vc ± 0.2 V

+Vc

+2.5 V to +5 V

0 ± 0.2 V

15 dB

Postitive/

Negative^1,2

Negative³

+Vc

39 pF

-Vc ± 0.2 V

-2.5 V to -5 V

0 ± 0.2 V

39 pF

0 ± 0.2 V

GND

RF1

RF2

-2.5 V to -5 V

1. External DC blocking capacitors are required as noted*

2. |-Vc|+ Vc  8 V

3. If negative control is used, DC blocking capacitors are not

required on RF Ports and Ground.

Absolute Maximum Ratings¹

Parameter

Maximum Input Power

Control Voltage V_CTL

Operating Temperature

Storage Temperature

Absolute Maximum

+21 dBm

-8 V

-40° C to +85° C

-65° C to +150° C

1. Exceeding any one or a combination of these limits may

cause permanent damage.

12 3

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