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参数资料
| 型号： | LM4546AVH/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封装： | 7 X 7 MM, 1.40 MM HEIGHT, LQFP-48 |
| 文件页数： | 25/27页 |
| 文件大小： | 897K |
| 代理商： | LM4546AVH/NOPB |
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Typical Application
APPLICATION HINTS
The LM4546A must be initialized by using RESET# to perform a Power-On-Reset as shown in the Power On Reset Timing
Diagram
V
REF must be pulled high to AVDD witha10k
resistor to ensure correct operation
Don’t leave unused analog inputs floating. Tie all unused inputs together and connect to Analog Ground through a capacitor
(e.g. 0.1 F)
Do not leave CD_GND floating when using the CD stereo input. CD_GND is the AC signal reference for the CD channels and
should be connected to the CD source ground (Analog Ground may also be acceptable) througha1F capacitor
If using a non-standard AC Link controller take care to keep the SYNC and SDATA_IN signals low during Cold Reset to avoid
entering the ATE or Vendor test modes by mistake
The PC_Beep input should be explicitly muted if not used since it defaults to 0 dB gain on reset, unlike the mute default of the
other analog inputs
20030803
FIGURE 1. LM4546A Typical Application Circuit, Single Codec, 1 Vrms inputs
LM4546A
www.national.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4546AVHX | 制造商:Rochester Electronics LLC 功能描述:AC97 REV2 CODEC 3D STEREO - Bulk |
| LM4546B | 制造商:NSC 制造商全称:National Semiconductor 功能描述:AC ’97 Rev 2 Multi-Channel Audio Codec with Sample Rate Conversion and National 3D Sound |
| LM4546BVH | 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
| LM4546BVH /NOPB | 制造商:Texas Instruments 功能描述:Audio Codec 2ADC / 2DAC 18-Bit 48-Pin LQFP Tray |
| LM4546BVH/NOPB | 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 类型: 分辨率: 转换速率:48 kSPs 接口类型:I2C ADC 数量:2 DAC 数量:4 工作电源电压:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-81 封装:Reel |
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