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LM4946SQ PDF预览

LM4946SQ

更新时间: 2024-09-28 04:20:07
品牌 Logo 应用领域
美国国家半导体 - NSC 消费电路商用集成电路音频放大器视频放大器
页数 文件大小 规格书
34页 804K
描述
Output Capacitor-Less Audio Subsystem with Programmable National 3D

LM4946SQ 技术参数

是否Rohs认证: 不符合生命周期:Transferred
包装说明:LLP-24Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.33.00.01
风险等级:5.45Is Samacsys:N
商用集成电路类型:AUDIO AMPLIFIERJESD-30 代码:S-XQCC-N24
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:24
最高工作温度:85 °C最低工作温度:-40 °C
标称输出功率:1.3 W封装主体材料:UNSPECIFIED
封装代码:HVQCCN封装等效代码:LCC24,.16SQ,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):260电源:3.3/5 V
认证状态:Not Qualified筛选级别:AEC-Q100
座面最大高度:0.8 mm子类别:Audio/Video Amplifiers
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温度等级:INDUSTRIAL
端子面层:Tin/Lead (Sn/Pb)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:40宽度:4 mm
Base Number Matches:1

LM4946SQ 数据手册

 浏览型号LM4946SQ的Datasheet PDF文件第2页浏览型号LM4946SQ的Datasheet PDF文件第3页浏览型号LM4946SQ的Datasheet PDF文件第4页浏览型号LM4946SQ的Datasheet PDF文件第5页浏览型号LM4946SQ的Datasheet PDF文件第6页浏览型号LM4946SQ的Datasheet PDF文件第7页 
June 2007  
LM4946  
Output Capacitor-Less Audio Subsystem with  
Programmable National 3D  
General Description  
Key Specifications  
The LM4946 is an audio power amplifier capable of delivering  
540mW of continuous average power into a mono 8Ω  
bridged-tied load (BTL) with 1% THD+N, 35mW per channel  
of continuous average power into stereo 32single-ended  
(SE) loads with 1% THD+N, or an output capacitor-less (OCL)  
configuration with identical specifications as the SE configu-  
ration, from a 3.3V power supply.  
■ꢀTHD+N at 1kHz, 540mW  
into 8BTL (3.3V)  
■ꢀTHD+N at 1kHz, 35mW  
into 32SE (3.3V)  
1.0% (typ)  
1.0% (typ)  
2.7 to 5.5V  
■ꢀSingle Supply Operation (VDD  
)
■ꢀI2C/SPI Single Supply Operation  
The LM4946 has three input channels: one pair for a two-  
channel stereo signal and the third for a differential single-  
channel mono input. The LM4946 features a 32-step digital  
volume control and eight distinct output modes. The digital  
volume control, 3D enhancement, and output modes (mono/  
SE/OCL) are programmed through a two-wire I2C or a three-  
wire SPI compatible interface that allows flexibility in routing  
and mixing audio channels.  
2.2 to 5.5V  
1.7 to 5.5V  
ꢀꢀLLP  
ꢀꢀmicro SMD  
Features  
I2C/SPI Control Interface  
I2C/SPI programmable National 3D Audio  
I2C/SPI controlled 32 step digital volume control (-54dB to  
+18dB)  
The LM4946 is designed for cellular phone, PDA, and other  
portable handheld applications. It delivers high quality output  
power from a surface-mount package and requires only sev-  
en external components in the OCL mode (two additional  
components in SE mode).  
Three independent volume channels (Left, Right, Mono)  
Eight distinct output modes  
LLP and microSMD surface mount packaging  
Click and Pop” suppression circuitry  
Thermal shutdown protection  
Low shutdown current (0.02uA, typ)  
RF immunity topology  
Applications  
Mobile Phones  
PDAs  
Boomer® is a registered trademark of National Semiconductor Corporation.  
© 2007 National Semiconductor Corporation  
201628  
www.national.com  

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VOLUME CONTROL CIRCUIT