YSS915 Просмотр технического описания (PDF) - Yamaha Corporation

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производитель

YSS915

Karaoke Processor 2 for Video disc player

Yamaha Corporation 

YSS915

BLOCK DIAGRAM

This LSI has two input channels (L and R) and two output channels (L and R) for digital audio interface. It also has a

one bit Delta-Sigma type AD converter 1 channel (microphone) that performs Delta-Sigma modulation at its analog

block, and decimation/interpolation of 128 times at its DSP.

Karaoke audio signal is processed by DSP for processing Karaoke audio signal and RAM for delay.

For the details of Karaoke audio signal processing, please refer to "OPERATIONS".

The parameters of this LSI are set through CPU interface. For the details of the parameters, please refer to

"REGISTERS".

DEPI

/CS

CDI

/SCK

CDO

P0

KP2V2

CPU interface

SDSY,DI,BCI

DO,L/R,BCO

ZERO

MICIN

AOL

AOR

VREF

Digital I/O

Interface

Analog block

ADC1 ADC2

DSP

RAM

for delay

Program ROM

Clock

generator

/IC

XISEL

XI PLLC

MODES

Name of mode

KP2

standard mode

KP2V

extended mode

Code

Description

The functions of KP2 (YSS216B) can be used. The registers are compatible, except that

N the coefficient registers (addresses $27 and $30 to $33) of KP2 that controls the analog

audio input and analog microphone echo output cannot be used because YSS903 does

not have these ports.

E Every function of this device can be used.

5

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