YSS903

The YSS903 has the following features including KP2 register compatible mode;Sampling frequency:32, 37.8, 44.1 or 48 kHz;Package:28 pin SOP(YSS903-M);Initial reflection sound synthesizing system;Y mersion;Digital inputs:2 channels (16/18120/24 bits);Digital outputs:2 channels (16/18120/24 bits);Analog input:1 channel;Analog output:2 channels;Serial microcomputer interface.

YSS903(KP2V) is an LSI for processing voice signals of Karaoke system. This device incorporates an AD(1 channel)/DA(2 channel) and a memory for microphone echo and key control so that the essential functions needed for "Karaoke" such as Key Control, Voice Cancel,Microphone Echo, Tone Control and Surround can be obtained, without requiring other devices.Since the microphone echo provides revert-echo in addition to its original function, and the device has the key control function for microphone, it can provide various uses. This device has a register compatible mode in which it can be used in KPZ's standard mode.In addition to these Karaoke programs, this LSI can provide the movie and music program.In this mode,the user is able to enjoy listening movie and music sources by adding surround effect.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 ADIDA converter (AD 1 channel (microphone) and DA 2 channels (L and R)) that performs Delta-Sigma modulation at its analog block, and decimationlinterpolation 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".

When the YSS903 coefficient registers controllable only in ICl'2V extended mode is used in the ICP2 standard mode, the following preset values are used as their coefficient of address, and their setting values are not used.The values of the registers are indefinite immediately after turning on the power, be sure to set the register values in the controllable mode before releasing the mute.