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MAX9789CETJ+ PDF预览

MAX9789CETJ+

更新时间： 2024-11-09 11:14:11
品牌 Logo 应用领域
美信 - MAXIM 放大器
页数 文件大小 规格书
28页 501K
描述
Windows Vista-Compliant, Stereo Class AB Speaker Amplifiers and DirectDrive Headphone Amplifiers

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MAX9789CETJ+ 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：QFN
包装说明：HVQCCN, LCC32,.2SQ,20针数：32
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.33.00.01Factory Lead Time：1 week
风险等级：5.81标称带宽：20 kHz
商用集成电路类型：AUDIO AMPLIFIER增益：21.6 dB
JESD-30 代码：S-XQCC-N32长度：5 mm
信道数量：2功能数量：1
端子数量：32最高工作温度：85 °C
最低工作温度：-40 °C标称输出功率：2 W
封装主体材料：UNSPECIFIED封装代码：HVQCCN
封装等效代码：LCC32,.2SQ,20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）：NOT SPECIFIED
电源：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：40 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.5 V表面贴装：YES
技术：BICMOS温度等级：INDUSTRIAL
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：5 mmBase Number Matches：1

MAX9789CETJ+ 数据手册

 浏览型号MAX9789CETJ+的Datasheet PDF文件第2页浏览型号MAX9789CETJ+的Datasheet PDF文件第3页浏览型号MAX9789CETJ+的Datasheet PDF文件第4页浏览型号MAX9789CETJ+的Datasheet PDF文件第5页浏览型号MAX9789CETJ+的Datasheet PDF文件第6页浏览型号MAX9789CETJ+的Datasheet PDF文件第7页 
19-0606; Rev 3; 9/09  
Windows Vista-Compliant, Stereo Class AB Speaker  
Amplifiers and DirectDrive Headphone Amplifiers  
8/MAX790  
General Description  
Features  
The MAX9789/MAX9790 combine a stereo, 2W Class AB  
speaker power amplifier with a stereo 100mW  
DirectDrive® headphone amplifier in a single device. The  
MAX9789/MAX9790 are designed for use with the  
Microsoft Windows Vista® operating system and are fully  
compliant with Microsoft’s Windows Vista specifications.  
o Microsoft Windows Vista Compliant  
o Class AB 2W Stereo BTL Speaker Amplifier  
o 100mW DirectDrive Headphone Amplifier  
Eliminates Costly, Bulky DC-Blocking Capacitors  
o Excellent RF Immunity  
†
The headphone amplifier features Maxim’s patented  
o Integrated 120mA LDO (MAX9789)  
o High +90dB PSRR, Low 0.002% THD+N  
o Low-Power Shutdown Mode  
o Click-and-Pop Suppression  
o Short-Circuit and Thermal-Overload Protection  
DirectDrive architecture that produces a ground-refer-  
enced output from a single supply to eliminate the need  
for large DC-blocking capacitors, as well as save cost,  
board space, and component height. A high +90dB  
PSRR and low 0.002% THD+N ensures clean, low-distor-  
tion amplification of the audio signal.  
o Available in 32-Pin Thin QFN (5mm x 5mm x  
0.8mm) Package  
Separate speaker and headphone amplifier control  
inputs provide independent shutdown of the speaker  
and headphone amplifiers, allowing speaker and head-  
phone amplifiers to be active simultaneously, if  
required. The industry-leading click-and-pop suppres-  
sion circuitry reduces audible transients during startup  
and shutdown cycles.  
Ordering Information  
PART  
PIN-PACKAGE INTERNAL LDO t  
(ms)  
ON  
MAX9789AETJ+ 32 TQFN-EP*  
MAX9789BETJ+** 32 TQFN-EP*  
MAX9789CETJ+ 32 TQFN-EP*  
MAX9790AETJ+ 32 TQFN-EP*  
MAX9790BETJ+** 32 TQFN-EP*  
Yes  
Yes  
Yes  
No  
100  
25  
100  
100  
25  
The MAX9789 features an internal LDO that can be used  
as a clean power supply for a CODEC or other circuits.  
The LDO output voltage is set internally at 4.75V or can  
be adjusted between 1.21V and 4.75V using a simple  
resistive divider. The LDO is protected against thermal  
overloads and short circuits while providing 120mA of  
continuous output current and can be enabled indepen-  
dently of the audio amplifiers.  
No  
Note: All devices are specified over the -40°C to +85°C extended  
temperature range.  
+Denotes a lead-free/RoHS-compliant package.  
*EP = Exposed pad.  
**Future product—contact factory for availability.  
By disabling the speaker and headphone amplifiers, and  
the LDO (for MAX9789), the MAX9789/MAX9790 enter  
low-power shutdown mode and draw only 0.3µA.  
Simplified Block Diagrams  
The MAX9789/MAX9790 operate from a single 4.5V to  
5.5V supply and feature thermal-overload and output  
short-circuit protection. Devices are specified over the  
-40°C to +85°C extended temperature range.  
SPEAKER SUPPLY HEADPHONE SUPPLY  
4.5V TO 5.5V  
3.0V TO 5.5V  
SPKR_INR  
MAX9789  
Applications  
SPKR_INL  
HP_INR  
Notebook Computers  
Tablet PCs  
HP_INL  
Portable Multimedia Players  
SPKR_EN  
HP_EN  
Pin Configurations appear at end of data sheet.  
MUTE  
GAIN1  
GAIN2  
†
U.S. Patent # 7,061,327.  
LDO  
Windows Vista is a registered trademark of Microsoft Corp.  
1.21V TO 4.75V  
4.5V TO 5.5V  
DirectDrive is a registered trademark of Maxim Integrated  
Products, Inc.  
Simplified Block Diagrams continued at end of data sheet.  
________________________________________________________________ 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.  
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