Datasheet > MAX9721CETC-T

MAX9721CETC-T

更新时间： 2024-11-09 20:03:23

品牌	Logo	应用领域
美信 - MAXIM		放大器信息通信管理商用集成电路
页数	文件大小	规格书
14页	554K
描述
Audio Amplifier, 0.025W, 2 Channel(s), 1 Func, BICMOS, 4 X 4 MM, 0.80 MM HEIGHT, TQFN-12

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MAX9721CETC-T 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	QFN	包装说明：	4 X 4 MM, 0.80 MM HEIGHT, TQFN-12
针数：	12	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.33.00.01
风险等级：	5.7	标称带宽：	22 kHz
商用集成电路类型：	AUDIO AMPLIFIER	JESD-30 代码：	S-XQCC-N12
JESD-609代码：	e0	长度：	4 mm
湿度敏感等级：	1	信道数量：	2
功能数量：	1	端子数量：	12
最高工作温度：	85 °C	最低工作温度：	-40 °C
标称输出功率：	0.025 W	封装主体材料：	UNSPECIFIED
封装代码：	HVQCCN	封装等效代码：	LCC12,.16SQ,32
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：	245	电源：	1.5 V
认证状态：	Not Qualified	座面最大高度：	0.8 mm
子类别：	Audio/Video Amplifiers	最大压摆率：	5 mA
最大供电电压 (Vsup)：	1.8 V	最小供电电压 (Vsup)：	0.9 V
表面贴装：	YES	技术：	BICMOS
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	NO LEAD	端子节距：	0.8 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	4 mm	Base Number Matches：	1

MAX9721CETC-T 数据手册

19-3167; Rev 0; 1/04

1V, Fixed-Gain, DirectDrive, Stereo Headphone

Amplifier with Shutdown

General Description

Features

The MAX9721 fixed-gain, stereo headphone amplifier

is ideal for portable equipment where board space is at a

premium. The MAX9721 uses a unique, patented

DirectDrive architecture to produce a ground-referenced

output from a single supply, eliminating the need for large

DC-blocking capacitors, saving cost, board space, and

component height. Fixed gains of -2V/V (MAX9721A),

-1.5V/V (MAX9721B), and -1V/V (MAX9721C) further

reduce external component count.

♦ Single Cell, 0.9V to 1.8V Single-Supply Operation

♦ Fixed Gain Eliminates External Feedback Network

MAX9721A: -2V/V

MAX9721B: -1.5V/V

MAX9721C: -1V/V

♦ Ground-Referenced Outputs Eliminate DC Bias

♦ No Degradation of Low-Frequency Response Due

to Output Capacitors

The MAX9721 delivers up to 20mW per channel into a

32Ω load and achieves 0.006% THD+N. An 80dB at

1kHz power-supply rejection ratio (PSRR) allows the

MAX9721 to operate from noisy digital supplies without

an additional linear regulator. The MAX9721 includes

±8kV ESD protection on the headphone output.

Comprehensive click-and-pop circuitry suppresses

audible clicks and pops at startup and shutdown. A

low-power shutdown mode reduces supply current to

1.0µA (typ).

♦ 20mW per Channel into 32Ω

♦ Low 0.006% THD+N

♦ High PSRR (80dB at 1kHz)

♦ Integrated Click-and-Pop Suppression

♦ Low Quiescent Current (2.2mA)

♦ Low-Power Shutdown Control

♦ Short-Circuit Protection

♦ ±8kV ESD-Protected Amplifier Outputs

The MAX9721 operates from a single 0.9V to 1.8V sup-

ply allowing the device to be powered directly from a

single AA or AAA battery. The MAX9721 consumes only

2.2mA of supply current, provides short-circuit protection,

and is specified over the extended -40°C to +85°C tem-

perature range. The MAX9721 is available in a tiny

(1.54mm x 2.02mm x 0.6mm), 12-bump chip-scale

package (UCSP™) and a 12-pin thin QFN package

(4mm x 4mm x 0.8mm).

♦ Available in Space-Saving Packages

12-Bump UCSP (1.54mm x 2.02mm x 0.6mm)

12-Pin Thin QFN (4mm x 4mm x 0.8mm)

Block Diagram

SINGLE

1.5V CELL

AA OR AAA

BATTERY

Applications

MP3 Players

Cellular Phones

PDAs

Smart Phones

MAX9721

Portable Audio Equipment

DirectDrive OUTPUTS

ELIMINATE DC-BLOCKING

CAPACITORS.

INL

OUTL

Ordering Information

C1P

C1N

PIN-

PACKAGE

TOP GAIN

MARK (V/V)

PART

TEMP RANGE

INVERTING

CHARGE PUMP

MAX9721AEBC-T* -40°C to +85°C 12 UCSP-12

ABP

-2

MAX9721AETC

-40°C to +85°C 12 TQFN-EP** AADZ

MAX9721BEBC-T* -40°C to +85°C 12 UCSP-12

ABQ

-1.5

OUTR

INR

MAX9721BETC

MAX9721CEBC-T* -40°C to +85°C 12 UCSP-12

MAX9721CETC -40°C to +85°C 12 TQFN-EP** AAEB

-40°C to +85°C 12 TQFN-EP** AAEA -1.5

ABR

-1

SGND

PGND

*Future product—contact factory for availability.

**EP = Exposed paddle.

UCSP is a trademark of Maxim Integrated Products, Inc.

Pin Configurations appear 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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与MAX9721CETC-T相关器件

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MAX97220B	MAXIM	获取价格	Differential Input DirectDrive Line Drivers/Headphone Amplifiers
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MAX97220BETE	MAXIM	获取价格	Differential Input DirectDrive Line Drivers/Headphone Amplifiers

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