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MAX9776EBX+T

更新时间： 2024-11-25 03:33:11
品牌 Logo 应用领域
美信 - MAXIM 音频控制集成电路消费电路商用集成电路放大器信息通信管理
页数 文件大小 规格书
37页 557K
描述
2 x 1.5W, Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier

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MAX9776EBX+T 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：BGA
包装说明：VFBGA, BGA36,6X6,20针数：36
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.67
Is Samacsys：N信道分离：75 dB
商用集成电路类型：VOLUME CONTROL CIRCUITJESD-30 代码：S-PBGA-B36
JESD-609代码：e3长度：3.06 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：36
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：VFBGA
封装等效代码：BGA36,6X6,20封装形状：SQUARE
封装形式：GRID ARRAY, VERY THIN PROFILE, FINE PITCH峰值回流温度（摄氏度）：260
电源：3.3 V认证状态：Not Qualified
座面最大高度：0.69 mm子类别：Audio/Video Amplifiers
最大压摆率：18 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.7 V表面贴装：YES
技术：BICMOS温度等级：INDUSTRIAL
端子面层：Matte Tin (Sn)端子形式：BALL
端子节距：0.5 mm端子位置：BOTTOM
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.06 mm
Base Number Matches：1

MAX9776EBX+T 数据手册

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19-0746; Rev 1; 7/07  
2 x 1.5W, Stereo Class D Audio Subsystem  
with DirectDrive Headphone Amplifier  
5/MAX976  
General Description  
Features  
o Unique Spread-Spectrum Modulation and Active  
The MAX9775/MAX9776 combine a high-efficiency  
Class D, stereo/mono audio power amplifier with a  
mono DirectDrive™ receiver amplifier and a stereo  
DirectDrive headphone amplifier.  
Emissions Limiting Significantly Reduces EMI  
o 3D Stereo Enhancement (MAX9775 Only)  
o Up to 3 Stereo Inputs  
Maxim’s 3rd-generation, ultra-low-EMI, Class D audio  
power amplifiers provide Class AB performance with  
Class D efficiency. The MAX9775/MAX9776 deliver  
1.5W per channel into a 4Ω load from a 5V supply and  
offer efficiencies up to 79%. Active emissions limiting  
circuitry and spread-spectrum modulation greatly  
reduce EMI, eliminating the need for output filtering  
found in traditional Class D devices.  
o 1.5W Stereo Speaker Output (4Ω, V  
= 5V)  
DD  
o 50mW Mono Receiver/Stereo Headphone Outputs  
(32Ω, V = 3.3V)  
DD  
o High PSRR (68dB at 217Hz)  
o 79% Efficiency (V  
= 3.3V, R = 8Ω, P  
=
OUT  
DD  
L
470mW)  
o I2C Control—Input Configuration, Volume Control,  
Output Mode  
The MAX9775/MAX9776 utilize a fully differential archi-  
tecture, a full-bridged output, and comprehensive click-  
and-pop suppression. A 3D stereo enhancement  
function allows the MAX9775 to widen the stereo sound  
field immersing the listener in a cleaner, richer sound  
experience than typically found in portable applications.  
The devices utilize a flexible, user-defined mixer archi-  
tecture that includes an input mixer, volume control, and  
output mixer. All control is done through I2C.  
o Click-and-Pop Suppression  
o Low Total Harmonic Distortion (0.03% at 1kHz)  
o Current-Limit and Thermal Protection  
Ordering Information  
PIN-  
PACKAGE  
PKG  
CODE  
CLASS D  
AMPLIFIER  
PART  
The mono receiver amplifier and stereo headphone  
amplifier use Maxim’s patented† DirectDrive architecture  
that produces a ground-referenced output from a single  
supply, eliminating the need for large DC-blocking  
capacitors, saving cost, space, and component height.  
MAX9775ETJ+*  
32 TQFN-EP** T3255-4  
B36-4  
32 TQFN-EP** T3255-4  
MAX9776EBX+T 32 UCSP-32 B36-4  
Stereo  
Stereo  
Mono  
Mono  
MAX9775EBX+T* 32 UCSP-32  
MAX9776ETJ+  
The MAX9775/MAX9776 are available in a 32-pin TQFN  
(5mm x 5mm) or a 32-bump UCSP™ (3mm x 3mm)  
package and specified over the extended -40°C to  
+85°C temperature range.  
Applications  
Cell Phones  
Note: All devices are specified over the -40°C to +85°C oper-  
ating temperature range.  
+Denotes lead-free package.  
*Future product—contact factory for availability.  
**EP = Exposed pad.  
Pin Configurations appear at end of data sheet.  
Portable Multimedia Players  
Handheld Gaming Consoles  
UCSP is a trademark of Maxim Integrated Products, Inc.  
†
U.S. Patent# 7,061,327  
Simplified Block Diagrams  
SINGLE SUPPLY 2.7V TO 5.5V  
SINGLE SUPPLY 2.7V TO 5.5V  
3D  
SOUND  
CONTROL  
GAIN  
CONTROL  
GAIN  
CONTROL  
MIXER/  
MUX  
MIXER/  
MUX  
2
2
I C  
I C  
INTERFACE  
INTERFACE  
MAX9775  
MAX9776  
________________________________________________________________ Maxim Integrated Products  
1
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.  
1234567...37

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