參數(shù)資料
型號(hào): LC78620E
廠商: Sanyo Electric Co.,Ltd.
英文描述: Compact Disc Player DSP(CD播放器DSP)
中文描述: 光碟機(jī)的DSP(數(shù)字信號(hào)處理器的CD播放器)
文件頁(yè)數(shù): 24/34頁(yè)
文件大?。?/td> 477K
代理商: LC78620E
18. Digital Filter Outputs; Pin 33: LRCKO, pin 34: DFORO, pin 35: DFOLO, pin 36: DACKO
Data for use with an external D/A converter is output MSB first from DFORO and DFOLO in synchronization with
the falling edge of DACKO. These pins are provided so that an external D/A converter can be used if desired.
Although this output is from 8
×
oversampling filters for normal-speed playback, 4
×
oversampling filters are used
in double-speed playback.
Digital filter block operation is not guaranteed in quad-speed playback.
19. One-bit D/A Converter
The LC78620E PWM block outputs a single data value in the range –3 to +3 once every 64fs period. To reduce
carrier noise, this block adopts an output format in which each data switching block is adjusted so that the PWM
output level does not invert. Also, the attenuator block detects 0 data and enters muting mode so that only a 0 value
(a 50% duty signal) is output.
This block outputs a positive-phase signal to the LCHP (RCHP) pin and a negative phase signal to the LCHN
(RCHN) pin. High-quality analog signals can be acquired by taking the differences of these two output pairs using
external low-pass filters.
The LC78620E includes built-in suppression resistors in each of the LCHP/N and RCHP/N pins.
PWM output format
PWM output example
No. 5130-24/34
LC78620E
相關(guān)PDF資料
PDF描述
LC78621E Compact Disc Player DSP(用于CD播放器的8位DSP)
LC78622E Compact Disc Player DSP(用于CD播放器的8位DSP)
LC78622NE Compact Disc Player DSP(用于CD播放器的8位DSP)
LC78624E Compact Disc Player DSP(用于CD播放器的8位DSP)
LC78625E SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC78621E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78622E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78622NE 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78624E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP
LC78625 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Compact Disc Player DSP