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參數資料
| 型號： | LM4546VH/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | TQFP-48 |
| 文件頁數： | 18/20頁 |
| 文件大小： | 356K |
| 代理商： | LM4546VH/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 the stereo line output 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 the stereo line output 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.
CD_L
18
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 CD_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 12h.
CD_GND
19
I
This input can be used to reject common mode signals on the CD_L and CD_R inputs.
CD_GND is an AC ground point and not a DC ground point. This input must be AC-coupled
to the source signal’s ground.
DS100985-2
Top View
Order Number LM4546VH
See NS Package Number VBH48A
LM4546
www.national.com
7
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相關代理商/技術參數 |
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|---|---|
| LM4547VH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Soundcard Circuits |
| LM4548 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC ’97 Rev 2 Codec with Sample Rate Conversion and National 3D Sound |
| LM4548A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:AC ’97 Rev 2 Multi-Channel Audio Codec with Sample Rate Conversion and National 3D Sound |
| LM4548AVH | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LM4548AVH WAF | 制造商:Texas Instruments 功能描述: |
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