- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358865 > LM4549 (National Semiconductor Corporation) AC ’97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound PDF資料下載
參數(shù)資料
| 型號： | LM4549 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | Codec |
| 英文描述： | AC ’97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound |
| 中文描述： | 交流\u0026#39;97活2.1編解碼器的采樣率轉(zhuǎn)換和國家3D聲音 |
| 文件頁數(shù)： | 7/18頁 |
| 文件大?。?/td> | 324K |
| 代理商： | LM4549 |
Connection Diagram
Pin Description
Analog I/O
Name
Pin
I / O
Functional Description
This is a mono input which gets summed into both the stereo line out and the true line level
out after the National 3D Sound block. The PC_BEEP level can be adjusted from 0dB to
45dB in 3dB steps, or muted, via register 0Ah. This input is directly connected to the line
output while the reset pin is held active low to allow power on self test tones to be heard
through the audio system.
This is a mono input which gets summed into both the stereo line out and the true line level
out after the National 3D Sound block. The PHONE level can be adjusted from +12dB to
34.5dB in 1.5dB steps as well as muted via register 0Ch.
This line level input can be routed through the Input Mux and recorded by the left ADC. In
addition, this analog input gets summed into the left output stream. The amount of AUX_L
signal mixed in the left output stream can be adjusted from +12dB to 34.5dB in 1.5dB steps
as well as muted via register 16h.
PC_BEEP
12
I
PHONE
13
I
AUX_L
14
I
DS101035-2
Top View
Order Number LM4549VH
See NS Package Number VBH48A
www.national.com
7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM4558 | DUAL OPERATIONAL AMPLIFIERS |
| LM4560VJD | Advanced PCI Audio Accelerator |
| LM4560 | Advanced PCI Audio Accelerator |
| LM45BIM3 | SOT-23 Precision Centigrade Temperature Sensors |
| LM45BIM3X | SOT-23 Precision Centigrade Temperature Sensors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4549A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC ’97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound |
| LM4549AVH | 制造商:Rochester Electronics LLC 功能描述:AC97 REV2.1 CODEC - Bulk 制造商:OC White Company 功能描述:Audio Codec 2ADC / 2DAC 18-Bit 48-Pin LQFP Tray |
| LM4549AVH WAF | 制造商:Texas Instruments 功能描述: |
| LM4549AVH/NOPB | 制造商:Texas Instruments 功能描述:Audio Codec 2ADC / 2DAC 18-Bit 48-Pin LQFP Tray |
| LM4549AVHX | 制造商:Rochester Electronics LLC 功能描述:AC97 REV2.1 CODEC - Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。