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參數(shù)資料
| 型號(hào)： | LC78834M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Stereo 18-bit Digital Audio D/A Converter with On-Chip 4 fs Digital Filters(立體聲18位數(shù)字音頻D/A轉(zhuǎn)換器帶片上4 fs數(shù)字濾波器) |
| 中文描述： | 立體聲18位數(shù)字音頻D / A轉(zhuǎn)換器與在片4個(gè)FS數(shù)字濾波器（立體聲18位數(shù)字音頻的D / A轉(zhuǎn)換器帶片上4個(gè)FS數(shù)字濾波器） |
| 文件頁(yè)數(shù)： | 7/14頁(yè) |
| 文件大?。?/td> | 196K |
| 代理商： | LC78834M |
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Soft mute
The soft muting function uses the built-in digital attenuator.
The following formula gives the attenuation.
20 · log (ATT/256) dB
The ATT parameter is an integer between 0 and 256. However, note that the attenuation will be –
∞
when ATT
is zero.
When the MUTE pin is set to the high level, one is subtracted from the ATT parameter repeatedly moving it
towards zero thus changing the attenuation towards –
∞
. Inversely, when the MUTE pin is set to the high level, one
is added to the ATT parameter repeatedly moving it towards 256 thus changing the attenuation towards unity. The
time required for the soft mute function to operate is about 1024/fs.
2. Initialization
The LC78834M must be initialized when power is first applied and when the system clock is switched.
The LC78834M is initialized by setting the INITB pin to the low level. The required length of this initial low level
period is defined as follows. Once the power supply has stabilized, input the XIN, BCLK and LRCK signals. The
low level on the INITB pin must be held until at least one full cycle of the LRCK signal has completed, as shown in
the figure.
No. 4838-7/14
LC78834M
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC78835 | 18 Bits Digital Filter and D/A Converter for Digital Audio |
| LC78835K | 18 Bits Digital Filter and D/A Converter for Digital Audio |
| LC78835KM | 18 Bits Digital Filter and D/A Converter for Digital Audio |
| LC78836 | Digital Audio 16-Bit D/A Converter with On-Chip Digital Filters |
| LC78836M | Digital Audio 16-Bit D/A Converter with On-Chip Digital Filters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC78835 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:18 Bits Digital Filter and D/A Converter for Digital Audio |
| LC78835K | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:18 Bits Digital Filter and D/A Converter for Digital Audio |
| LC78835KM | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:18 Bits Digital Filter and D/A Converter for Digital Audio |
| LC78835M | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio Digital-to-Analog Converter |
| LC78836 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Digital Audio 16-Bit D/A Converter with On-Chip Digital Filters |
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