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參數(shù)資料
| 型號： | LM4546MDC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, UUC |
| 封裝： | DIE |
| 文件頁數(shù)： | 19/20頁 |
| 文件大?。?/td> | 356K |
| 代理商： | LM4546MDC |
Pin Description (Continued)
Analog I/O (Continued)
Name
Pin
I / O
Functional Description
CD_R
20
I
This line level input can be routed through the input mux and recorded by the right ADC. In
addition, this analog input gets summed into the right output stream. The amount of CD_R
signal mixed in the right output stream can be adjusted from +12dB to 34.5dB in 1.5dB
steps as well as muted via register 12h.
MIC1
21
I
Either MIC1 or MIC2 can be selected via software and routed through the input mux for
recording. The 20dB boost circuit is enabled/disabled via register 0Eh. Also, the amount of
mic signal mixed in the output stream can be adjusted from +12dB to 34.5dB in 1.5dB
steps as well as muted via register 0Eh.
MIC2
22
I
Either MIC1 or MIC2 can be selected via software and routed through the input mux for
recording. The 20dB boost circuit is enabled/disabled via register 0Eh. Also, the amount of
mic signal mixed in the output stream can be adjusted from +12dB to 34.5dB in 1.5dB
steps as well as muted via register 0Eh.
LINE_IN_L
23
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
LINE_IN_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 10h.
LINE_IN_R
24
I
This line level input can be routed through the input mux and recorded by the right ADC. In
addition, this analog input gets summed into the right output stream. The amount of
LINE_IN_R signal mixed in the right output stream can be adjusted from +12dB to 34.5dB
in 1.5dB steps as well as muted via register 10h.
LINE_OUT_L
35
O
This is a post-mixed output for the left audio channel. The level of this output can be
adjusted from 0dB to 45dB in 1.5dB steps as well as muted via register 02h.
LINE_OUT_R
36
O
This is a post-mixed output for the right audio channel. The level of this output can be
adjusted from 0dB to 45dB in 1.5dB steps as well as muted via register 02h.
MONO_OUT
37
O
This line level output can be switched between outputting the post-mixed combined left and
right outputs or the mic signal. The level of this output can be adjusted from 0dB to 45dB in
1.5dB steps as well as muted via register 06h.
LM4546
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM4546VH | 制造商:Texas Instruments 功能描述:SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 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: |
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