DS4420

更新时间： 2024-11-26 03:30:35

品牌	Logo	应用领域
美信 - MAXIM		放大器
页数	文件大小	规格书
10页	147K
描述
I2C Programmable-Gain Amplifier for Audio Applications

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数据手册

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DS4420 数据手册

Rev 0; 9/06

I C Programmable-Gain Amplifier

for Audio Applications

DS420

General Description

Features

The DS4420 is a fully differential, programmable-gain

amplifier for audio applications. It features a -35dB to

ꢀ Differential Inputs and Outputs

ꢀ -35dB to +25dB Adjustable Gain

ꢀ Low Output Noise

+25dB gain range controlled by an I C interface and it

is optimized to drive loads as low as 50Ω. The gain is

adjustable in 3dB increments across the entire range.

ꢀ Low-Distortion Driving into a 50Ω Load

Three address inputs, used to select the I C slave

address, enable up to eight devices on a common bus.

ꢀ 3dB Gain Steps Programmed through I C Interface

ꢀ 5V Single Supply

The product operates from a single 5V supply over a

-20°C to +70°C temperature range. It is offered in a

3mm x 3mm TDFN package.

ꢀ 20kHz Bandwidth for All Gain Settings

ꢀ Small 3mm x 3mm x 0.8mm TDFN Package

ꢀ Up to Eight DS4420s can be Placed on the Same

Applications

Telephone Headsets

Audio Volume Control

Microphone Gain Control

I C Bus

Ordering Information

Pin Configuration

PART

TEMP RANGE

PIN-PACKAGE

TOP VIEW

DS4420+

-20°C to +70°C

14 TDFN-EP*

14 AV

13 OUT+

12 OUT-

+Denotes lead-free package.

*EP = Exposed paddle.

SCL

SDA

AGND

DS4420

10 N.C.

IN-

IN+

GND

TDFN

(3mm x 3mm x 0.8mm)

Typical Operating Circuit

GND

AGND

SDA

SCL

MICROPR0CESSOR-

CONTROLLED GAIN

I C INTERFACE

OUT+

IN+

IN-

-35dB

TO +25dB

GAIN

AUDIO

AMPLIFIER

AUDIO

SOURCE

OUT-

DS4420

______________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...10

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