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参数资料
| 型号： | LM4548VHX/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, TQFP-48 |
| 文件页数： | 15/17页 |
| 文件大小： | 328K |
| 代理商： | LM4548VHX/NOPB |
Connection Diagram
Pin Description
Analog I/O
Name
Pin
I / O
Functional Description
PC_BEEP
12
I
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.
PHONE
13
I
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.
AUX_L
14
I
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.
DS100987-2
Top View
Order Number LM4548VH
See NS Package Number VBH48A
LM4548
www.national.com
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4549 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:AC ’97 Rev 2.1 Codec with Sample Rate Conversion and National 3D Sound |
| LM4549A | 制造商:NSC 制造商全称: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 |
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