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MAX9720AEBE-T PDF预览

MAX9720AEBE-T

更新时间: 2024-11-05 22:05:23
品牌 Logo 应用领域
美信 - MAXIM 消费电路商用集成电路音频放大器视频放大器信息通信管理
页数 文件大小 规格书
21页 507K
描述
50mW, DirectDrive, Stereo Headphone Amplifier with SmartSense and Shutdown

MAX9720AEBE-T 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:BGA
包装说明:VFBGA, BGA16,4X4,20针数:16
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.71
标称带宽:22 kHz商用集成电路类型:AUDIO AMPLIFIER
JESD-30 代码:S-PBGA-B16JESD-609代码:e0
长度:2.02 mm湿度敏感等级:1
信道数量:2功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C标称输出功率:0.05 W
封装主体材料:PLASTIC/EPOXY封装代码:VFBGA
封装等效代码:BGA16,4X4,20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):245
电源:3 V认证状态:Not Qualified
座面最大高度:0.67 mm子类别:Audio/Video Amplifiers
最大压摆率:8.4 mA最大供电电压 (Vsup):3.6 V
最小供电电压 (Vsup):1.8 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: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:2.02 mm
Base Number Matches:1

MAX9720AEBE-T 数据手册

 浏览型号MAX9720AEBE-T的Datasheet PDF文件第2页浏览型号MAX9720AEBE-T的Datasheet PDF文件第3页浏览型号MAX9720AEBE-T的Datasheet PDF文件第4页浏览型号MAX9720AEBE-T的Datasheet PDF文件第5页浏览型号MAX9720AEBE-T的Datasheet PDF文件第6页浏览型号MAX9720AEBE-T的Datasheet PDF文件第7页 
19-2859; Rev 0; 4/03  
50mW, DirectDrive, Stereo Headphone  
Amplifier with SmartSense and Shutdown  
General Description  
Features  
The MAX9720 stereo headphone amplifier combines  
Maxim’s patented DirectDrive architecture and  
SmartSense™, an automatic mono/stereo detection fea-  
ture. Conventional headphone amplifiers require a bulky  
DC-blocking capacitor between the headphone and the  
amplifier. DirectDrive produces a ground-referenced out-  
put from a single supply, eliminating the need for large  
DC-blocking capacitors, saving cost, board space, and  
component height.  
DirectDrive Eliminates Bulky DC-Blocking  
Capacitors  
SmartSense Automatic Short Detection  
Low 5mA Quiescent Current  
Fixed Gain Eliminates External Feedback Network  
MAX9720A: -1V/V  
MAX9720B: -1.41V/V  
50mW per Channel Output Power  
Ultra-Low 0.003% THD+N  
SmartSense automatically detects the presence of a  
short at either the left or right amplifier output. Under a  
fault condition, the shorted output is automatically dis-  
abled and the stereo input signal is automatically mixed  
and routed to the remaining active channel. This feature  
is useful in cell phone and PDA applications where a  
variety of headphone jacks with unknown loads can be  
inserted into the headphone jack socket. SmartSense  
prevents both damage to the amplifier and eliminates  
battery drain into a shorted load.  
High PSRR (92dB at 217Hz)  
Integrated Click-and-Pop Suppression  
1.8V to 3.6V Single-Supply Operation  
Thermal Overload Protection  
Available in Space-Saving Packages  
16-Bump UCSP (2mm x 2mm x 0.6mm)  
16-Pin TSSOP  
The MAX9720 delivers up to 50mW per channel into a  
16load and has an ultra-low 0.003% THD+N. A high  
(92dB at 217kHz) power-supply rejection ratio (PSRR)  
allows the device to operate from noisy digital supplies  
without additional power conditioning. The gain of the  
MAX9720 is set internally, further reducing component  
count. Two gain options are available (-1V/V, MAX9720A  
and -1.41V/V, MAX9720B). The headphone outputs  
include a comprehensive click-and-pop circuitry that  
eliminates audible glitches on startup and shutdown. A  
shutdown mode provides a fast 250µs turn-on time.  
Ordering Information  
PIN/BUMP-  
PACKAGE  
GAIN  
(V/V)  
PART  
TEMP RANGE  
MAX9720AEBE-T -40oC to +85oC  
MAX9720BEBE-T -40oC to +85oC  
16 UCSP-16  
16 UCSP-16  
16 TSSOP  
-1  
-1.41  
-1  
MAX9720AEUE  
MAX9720BEUE  
-40oC to +85oC  
-40oC to +85oC  
16 TSSOP  
-1.41  
The MAX9720 operates from a single 1.8V to 3.6V  
supply and consumes only 5mA of supply current. The  
MAX9720 also features thermal overload protection,  
and is specified over the extended -40°C to +85°C tem-  
perature range. The MAX9720 is available in a tiny  
(2mm x 2mm x 0.6mm) 16-bump chip-scale package  
(UCSP™) and a 16-pin TSSOP package.  
Simplified Block Diagram  
3.6V TO 1.8V  
SUPPLY  
Applications  
MAX9720  
R
IN  
PDAs  
Smart Phones  
R
OUT  
Cellular Phones  
MP3 Players  
Notebook PCs  
Tablet PCs  
HPS  
Portable Audio Equipment  
MODE1  
MODE2  
ALERT  
+
SmartSense  
L
OUT  
SmartSense and UCSP are trademarks of Maxim Integrated  
Products, Inc.  
L
IN  
Pin Configuration and Typical Application Circuit appear at  
end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
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.  

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