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參數(shù)資料
| 型號： | LM4549BVHX/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | LM4549B AC '97 Rev 2.1 Multi-Channel Audio Codec with Sample Rate Conversion and National 3D Sound; Package: LQFP; No of Pins: 48; Qty per Container: 1000/Reel |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, LQFP-48 |
| 文件頁數(shù)： | 26/28頁 |
| 文件大小： | 927K |
| 代理商： | LM4549BVHX/NOPB |
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Typical Application
APPLICATION HINTS
The LM4549B must be initialized by using RESET# to perform a Power On Reset as shown in the Power On Reset Timing
Diagram
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 muted if not used since it defaults to 0 dB gain on reset, unlike the mute default of the other
analog inputs
20123503
FIGURE 1. LM4549B Typical Application Circuit, Single Codec, 1 Vrms inputs
LM4549B
www.national.com
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| LM4550BVHX/NOPB | LM4550B AC '97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound; Package: LQFP; No of Pins: 48; Qty per Container: 1000/Reel |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4549VH | 制造商:Texas Instruments 功能描述: |
| LM4549VHX | 制造商:Texas Instruments 功能描述: |
| LM4550 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC ’97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound |
| LM4550B | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC 97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound |
| LM4550BVH | 功能描述:接口—CODEC RoHS:否 制造商:Texas Instruments 類型: 分辨率: 轉(zhuǎn)換速率:48 kSPs 接口類型:I2C ADC 數(shù)量:2 DAC 數(shù)量:4 工作電源電壓:1.8 V, 2.1 V, 2.3 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-81 封裝:Reel |
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