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参数资料
| 型号： | MAX9726AETP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/24页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO .124W STER 20TQFN |
| 标准包装： | 2,500 |
| 系列： | DirectDrive® |
| 类型： | AB 类 |
| 输出类型： | 耳机，2-通道（立体声） |
| 在某负载时最大输出功率 x 通道数量： | 124mW x 2 @ 16 欧姆 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 特点： | 低音增强模式，消除爆音，I²C，静音，短路和热保护，关机，音量控制 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 20-TQFN-EP（4x4） |
| 封装/外壳： | 20-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
General Description
The MAX9726 stereo, DirectDrive, headphone amplifier
with BassMax and volume control is ideal for portable
audio applications where space is at a premium and per-
formance is essential. The MAX9726 operates from a sin-
gle 2.7V to 5.5V power supply and includes features that
reduce external component count, system cost, board
space, and offer improved audio reproduction. High
85dB PSRR makes the MAX9726 ideal for direct connec-
tion to a battery-powered supply and eliminates the need
for a dedicated LDO. The MAX9726 features Maxim’s
industry-leading click-and-pop suppression circuitry,
which reduces/eliminates audible transients during
power-up and power-down.
The headphone amplifier uses Maxim’s DirectDrive archi-
tecture that produces a ground-referenced output from a
single supply, eliminating the need for large DC-blocking
capacitors. The headphone amplifiers deliver 105mW into
a 32Ω load and feature low 0.02% THD+N.
The BassMax feature boosts the bass response of the
amplifier, improving audio reproduction when using inex-
pensive headphones. The integrated volume control fea-
tures 64 discrete volume levels, eliminating the need for
an external potentiometer. External resistors set the
MAX9726’s overall gain allowing for custom gain settings.
BassMax and the volume control are enabled through the
I2C/SMBus-compatible interface. Shutdown can be con-
trolled through the hardware or software interface.
The MAX9726 consumes only 5.5mA of supply current,
provides short-circuit and thermal-overload protection,
and is specified over the -40°C to +85°C extended tem-
perature range. The MAX9726 is available in a tiny
(2mm x 2.5mm x 0.62mm) 20-bump chip-scale pack-
age (UCSP) and a 20-pin TQFN package (4mm x
4mm x 0.75mm).
Applications
Features
105mW DirectDrive Headphone Amplifier
Eliminates Bulky DC-Blocking Capacitors
2.7V to 5.5V Single-Supply Operation
Integrated 64-Level Volume Control
High 85dB PSRR at 1kHz
Software-Enabled Bass Boost (BassMax)
Industry-Leading Click-and-Pop Suppression
±7.5kV HBM ESD-Protected Headphone Outputs
Short-Circuit and Thermal-Overload Protection
Low-Power Shutdown Mode (8μA)
Low 0.02% THD+N
I2C/SMBus-Compatible Interface
Available in Space-Saving, Thermally Efficient
Packages
20-Bump UCSP (2mm x 2.5mm x 0.62mm)
20-Pin TQFN (4mm x 4mm x 0.75mm)
MAX9726
DirectDrive, Headphone Amplifier with
BassMax, I2C, Volume and Gain Control
________________________________________________________________
Maxim Integrated Products
1
Ordering Information
I2C
INTERFACE
VOLUME
CONTROL
BassMax
2.7V TO 5.5V SUPPLY
SCL
BML
OUTL
BMR
OUTR
SDA
INL
INR
FBR
FBL
MAX9726
Σ
Simplified Block Diagram
19-0627; Rev 1; 3/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Pin Configurations appear at end of data sheet.
Note: All devices specified over the -40°C to +85°C operating
range.
+
Denotes lead-free package.
*
EP = Exposed pad.
T = Tape and reel.
PART
PIN-PACKAGE
SLAVE ADDRESS
MAX9726AEBP+T
20 UCSP-20
1001100
MAX9726AETP+
20 TQFN-EP*
1001100
MAX9726BEBP+T
20 UCSP-20
1001101
MAX9726BETP+
20 TQFN-EP*
1001101
SMBus is a trademark of Intel Corp.
UCSP is a trademark of Maxim Integrated Products, Inc.
EVALUATION
KIT
AVAILABLE
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9726BEBP+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9726BEBP+T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9726BETP+ | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9726BETP+T | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9726EVKIT+ | 功能描述:放大器 IC 开发工具 RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
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