Datasheet > MAX4063_11

MAX4063_11

更新时间： 2022-11-17 19:17:27

品牌	Logo	应用领域
美信 - MAXIM		放大器
页数	文件大小	规格书
14页	223K
描述
Differential Microphone Preamplifier with Internal Bias and Complete Shutdown

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MAX4063_11 数据手册

19-2753; Rev 1; 6/11

Differential Microphone Preamplifier with

Internal Bias and Complete Shutdown

MAX4063

General Description

Features

o 2.4V to 5.5V Single-Supply Operation

The MAX4063 is a differential-input microphone preampli-

fier optimized for high-performance, portable applica-

tions. The device features two selectable inputs,

differential outputs, adjustable gain, an integrated low-

noise bias source, and a low-power shutdown mode.

Two input paths provide both differential and single-

ended microphone sensing. The high-noise rejection of

the differential input is ideally suited to an internal micro-

phone where system noise and long-run PC board traces

can degrade low-level signals. The single-ended input

provides a simple connection to an external microphone.

o Differential Inputs and Outputs

o Adjustable Gain

o High 95dB PSRR

o High 79dB CMRR

o Low-Noise, Integrated Microphone Bias

o 750µA Supply Current

o 0.3µA Shutdown Current

4kV ESD Protection (AUX_IN)

o THD+N: 0.05% at 1kHz

The differential and single-ended inputs have indepen-

dent, adjustable gains that are set with a single external

resistor. Differential outputs provide a full-scale signal of

o Available in Space-Saving Packages

14-Pin TSSOP

up to 6V

from a single 3V supply, optimizing the

P-P

16-Pin TQFN (4mm x 4mm x 0.8mm)

dynamic range of the amplified signal. A complete shut-

down mode reduces the supply current to only 0.3µA

and disables the microphone bias for the ultimate in

power savings.

Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

The MAX4063 operates from 2.4V to 5.5V and is specified

over the extended -40°C to +85°C operating temperature

range. The MAX4063 is available in both 16-pin TQFN

(4mm x 4mm x 0.8mm) and 14-pin TSSOP packages.

MAX4063ETE+

MAX4063EUD+

-40°C to +85°C

16 TQFN-EP*

14 TSSOP

*EP = Exposed pad.

+Denotes a lead(pB)-free/RoHS-compliant package.

Applications

Notebook Audio Systems

Tablet PCs

Typical Operating Circuit

2.4V TO 5.5V

PDA Audio Systems

Signal Conditioning

INT/AUX

ADJ

SHDN

Pin Configurations

AUX_IN

MAX4063

OUT

INT/AUX

SHDN

OUT

14 G1

BIAS

13 N.C.

12 AUX_IN

11 GND

10 IN-

OUT

MAX4063

IN+

IN-

BIAS

IN+

ADJ

OUT

G1 G2

GND

TSSOP

Pin Configurations continued at end of data sheet.

________________________________________________________________ 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...14

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MAX4063ETE	MAXIM	Differential Microphone Preamplifier with Internal Bias and Complete Shutdown	获取价格
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