MAX9890

更新时间： 2024-11-04 22:55:07

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
13页	491K
描述
Audio Click-Pop Suppressor

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数据手册

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MAX9890 数据手册

19-2932; Rev 0; 8/03

Audio Click-Pop Suppressor

General Description

Features

The MAX9890 provides click-and-pop suppression for

devices such as CODECs with integrated headphone

amplifiers that lack a clickless/popless startup/power-

up or shutdown/power-down. The device controls the

ramping of the DC bias voltage on the output-coupling

capacitors and the application of the audio signal to

ensure that no audible transients are present at the

headphones. The MAX9890A features a 200ms startup

time for use with up to 100µF coupling capacitors. The

MAX9890B features a 330ms startup time for use with

greater than 100µF coupling capacitors.

ꢀ 36dB Click-Pop Suppression

ꢀ 2.7V to 5.5V Single-Supply Operation

ꢀ Clickless/Popless Startup/Power-Up and

Shutdown/Power-Down

ꢀ 0.001µA Low-Power Shutdown Mode

ꢀ THD+N < 0.003% Into 32Ω

ꢀ ±±kV ꢀSD Protection ꢁHuꢂan Body Modelꢃ

ꢀ Requires Only One 0.1µF Capacitor to Coꢂplete

the Circuit

The MAX9890 consumes 14µA of supply current and

0.001µA in shutdown, while contributing less than

0.003% THD+N into a 32Ω load. ESD (Human Body

Model) protection circuitry on the outputs protect the

MAX9890 and devices further up the signal chain from

ESD strikes up to 8kꢀ.

ꢀ Low 14µA Supply Current

ꢀ Tiny Packaging

9-Buꢂp UCSP ꢁ1.5ꢂꢂ x 1.5ꢂꢂ x 0.6ꢂꢂꢃ

±-Pin TDFN ꢁ3ꢂꢂ x 3ꢂꢂ x 0.±ꢂꢂꢃ

The MAX9890 is available in a miniature (1.5mm ✕

1.5mm ✕ 0.6mm) 9-bump chip-scale package (UCSP™),

as well as an 8-pin TDFN package (3mm ✕ 3mm ✕

0.8mm), and is specified for operation over the

-40°C to +85°C extended temperature range.

Ordering Information

PIN-

PACKAGꢀ

TOP

MARK

PART

TꢀMP RANGꢀ

MAX9890AEBL-T* -40°C to +85°C 9 UCSP-9

MAX9890AETA -40°C to +85°C 8 TDFN-EP**

MAX9890BEBL-T* -40°C to +85°C 9 UCSP-9

MAX9890BETA -40°C to +85°C 8 TDFN-EP**

ADV

AHA

ADW

AHB

Applications

High-End Notebook Audio

Portable DꢀD Players

Portable MP3 Players

PDAs

Cell Phones

*Future product—contact factory for availability.

**EP = Exposed pad.

Simplified Block Diagram

Selector Guide

SWITCH TURN-ON

PART

PIN-PACKAGꢀ

SINGLE SUPPLY

2.7V TO 5.5V

TIMꢀ ꢁꢂsꢃ

MAX9890AEBL-T

MAX9890AETA

MAX9890BEBL-T

MAX9890BETA

9 UCSP-9

8 TDFN-EP

9 UCSP-9

8 TDFN-EP

200

330

OUTL

INL

RAMP

DOWN

INR

OUTR

MAX9890

Typical Application Circuit and Pin Configurations appear

at end of data sheet.

UCSP is a trademark of Maxim Integrated Products, Inc.

________________________________________________________________ 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...13

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与MAX9890相关器件

型号	品牌	获取价格	描述	数据表
MAX9890_V01	MAXIM	获取价格	Audio Click-Pop Suppressor
MAX9890AEBL+T	MAXIM	获取价格	Consumer Circuit, BICMOS, UCSP-9
MAX9890AEBL-T	MAXIM	获取价格	Audio Click-Pop Suppressor
MAX9890AETA	MAXIM	获取价格	Audio Click-Pop Suppressor
MAX9890AETA+	MAXIM	获取价格	Consumer Circuit, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, TDFN-8
MAX9890AETA+T	MAXIM	获取价格	Consumer Circuit, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, TDFN-8
MAX9890AETA-T	MAXIM	获取价格	Consumer Circuit, BICMOS, 3 X 3 MM, 0.80 MM HEIGHT, TDFN-8
MAX9890BEBL+	MAXIM	获取价格	Consumer Circuit, BICMOS, PDSO8, 3 X 3 MM, 0.80 MM HEIGHT, MO229, TDFN-8
MAX9890BEBL+T	MAXIM	获取价格	Consumer Circuit, BICMOS, UCSP-9
MAX9890BEBL+TG29	MAXIM	获取价格	Consumer Circuit,

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