(China (Mainland))
Product Summary
The YMF721-S is a high quality and low cost Wavetable synthesizer LSI. The YMF721-S integrates an OPL3 (FM synthesizer), General MIDI processor and 1 Mbyte Wavetable sample ROM into one chip, and complies with General MIDI (GM) system level 1. Thus, the YMF721-S is best suited to multimedia applications, sound cards, MIDI synthesis modules and other sound applications. Power management functions (power down and suspend/resume functions) of OPL4-ML2 contribute to low power consumption of personal computers into which this product is built-in.
Parametrics
YMF721-S absolute maximum ratings: (1)Power Supply Voltage (Analog/Digital), VDD: VSS-0.5 to VSS+7.0 V; (2)Input Voltage, VIN: VSS-0.5 to VDD+0.5 V; (3)Output Voltage, VOUT: VSS-0.3 to VDD+0.3 V; (4)Input Current, IIN: -20 to 20 mA; (5)Storage Temperature, TSTG: -50 to 125鈩?
Features
YMF721-S features: (1)The Wavetable synthesizer of this LSI is able to generate up to 24 types of sounds simultaneously; (2)Has an interface that makes this LSI compatible with MPU-401 UART mode; (3)Has an OPL3 (FM synthesizer) for AdLib/Sound Blaster applications; (4)Has a 1 Mbyte built-in Wavetable sample ROM; (5)Complies with GM system Level 1. (Thus, it is compatible with DOS applications that support MPU-401.); (6)MIDI signal can be transmitted either through serial input or parallel input; (7)FM synthesizer and Wavetable synthesizer of this LSI can generate their sound at the same time; (8)FM synthesizer is register-compatible with OPL3; (9)All registers are readable; (10)Power management functions included power down and suspend/resume can be supported; (11)Frequency of master clock signal is 33.8688 MHz; (12)Pin compatible with YMF704C-S (100 pin SQPF); (13)Voltage of power supply can be 5.0 V or 3.3 V; (14)Silicone gate CMOS process; (15)100-pin SQFP (YMF721-S).
Diagrams
<IMG alt="YMF721-S block diagram" src="http://www.seekic.com/uploadfile/ic-mfg/201252513426182.jpg" border=0>
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