- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄358766 > LC78857V (Sanyo Electric Co.,Ltd.) Digital Audio D/A Converter IC with On-Chip Digital Filters PDF資料下載
參數(shù)資料
| 型號： | LC78857V |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Digital Audio D/A Converter IC with On-Chip Digital Filters |
| 中文描述： | 數(shù)字音頻D / A轉(zhuǎn)換器IC與在片上數(shù)字濾波器 |
| 文件頁數(shù)： | 5/11頁 |
| 文件大?。?/td> | 199K |
| 代理商： | LC78857V |
Circuit Operation
The LC78857V consists of three main blocks: the digital filter block, the sigma-delta D/A converter block, and the
analog filter block.
[Digital Filter Block]
The LC78857V performs the following calculations.
Normal speed mode:
Double speed mode:
This mode is used, for example, when dubbing a CD to cassette tape at double speed. Although the XIN has the same
frequency as normal speed mode, BCLK, LRCK, and DATA are input at twice the rate used in normal speed.
[Sigma-Delta D/A Converter Block]
This circuit accepts 8fs data input and outputs a 384fs 1-bit data sequence.
[Analog Low-Pass Filter Block]
This block consists of an analog low-pass filter that consists of on-chip resistors, capacitors, and operational amplifiers.
This block converts the 384fs 1-bit data streams A and B directly to an analog voltage output.
No. 5537-5/11
LC78857V
Input
Attenuator
Deemphas
is first-
order IIR
filter
31st-order
FIR filter
11th-order
FIR filter
3rd-order
FIR filter
To the sigma-delta
D/A converter
Input
Attenuator
Deemphas
is first-
order IIR
filter
31st-order
FIR filter
3rd-order
FIR filter
To the sigma-delta
D/A converter
fs
*
= double speed input = 2
×
fs.
From the
digital filters
Front-end
interpolation
3rd-order
noise
shaper
PWM D/A
converter
1-bit output A
1-bit output B
1-bit output A
1-bit output B
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LC78865 | 16-bit A/D Converter |
| LC78865M | 16-bit A/D Converter |
| LC78866V | 16-bit A/D Converter |
| LC7886 | 18-Bit A/D Converter for Digital Audio Applications |
| LC7886M | 18-Bit A/D Converter for Digital Audio Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC78858V | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| LC7886 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:18-Bit A/D Converter for Digital Audio Applications |
| LC78865 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:16-bit A/D Converter |
| LC78865M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:16-bit A/D Converter |
| LC78866V | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:16-bit A/D Converter |
發(fā)布緊急采購，3分鐘左右您將得到回復。