yss915-m ETC-unknow, yss915-m Datasheet - Page 5

• Manufacturer Part Number: yss915-m
• Description: Karaoke Pracessor Video Disc Playor Kp2v2
• Manufacturer: ETC-unknow

YSS915
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".
BLOCK DIAGRAM
MODES
SDSY, DI, BCI
extended mode
standard mode
DO, L/R, BCO
Name of mode
KP2V
MICIN
KP2
VREF
ZERO
AOL
AOR
Code
N
E
KP2V2
Analog block
The functions of KP2 (YSS216B) can be used. The registers are compatible, except that
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.
Every function of this device can be used.
Digital I/O
Interface
ADC1
ADC2
DEPI
CPU interface
/SCK
CDI
DSP
/CS
Description
CDO
P0
Program ROM
XI
Clock
generator
for delay
RAM
PLLC
/IC
XISEL
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