Product Summary

The YMF704C-S is a wave table synthesizer LSI that integrates OPL3, general MIDI processor and wave table ROM into one chip, and complies with GM system level 1. The device makes a low cost system with high quality tone when it is used in the multimedia personal computers and sound boards. The LSI YMF704C-S is able to operate nomally at power voltage of 3.3V. This features make this LSI suitable for notebook type personal computers that require low power consumption.

Parametrics

YMF704C-S absolute maximum ratings: (1)power supply voltage, VDD: -0.3 to 7.0V; (2)input voltage, VIN: -0.3 to VDD+0.5V; (3)operating temperature, Top: 0 to 70℃; (4)storage temperature, Tstg: -50 to 125℃.

Features

YMF704C-S features: (1)complies with GM system Level 1; (2)MDI signal can be transmitted either through serial input or parallel input; (3)contains an interface that is compatible with MPU-401 UART mode; (4)FM synthesis is register compatible with OPL3; (5)wabe table synthesis is able to generate up to 24 voices simultaneously; (6)contains 8-Mbit wave table ROM; (7)all resisters are readable; (8)master clock frequency is 33.8688MHz; (9)power supply voltage is 5V or 3.3V; (10)silicon gate CMOS process; (11)100-pin SQFP.

Diagrams

YMF704C-S block diagram

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