YM7402

YM7402 is an one-chip LSI containing various circuits for digital audio signal processing used in optical multi disc compatible players as well as servo control and signal precessing capabilities needed in CD players.In addition, sequential control of tracking/feed for high speed searching, digital audio interface output, digital volume adjustment and peak holding functions are included for use in high-grade CD players and compatible players.

What comes next is about the absolute maximum ratings (Ta=+25) of YM7402.The VDD (power supply voltage) is from -0.3 V to +7.0 V.The VI (input voltage) is from -0.3 V to VDD+0.5 V.The Top (operating temperature) is from -20 to +75.The Tstg (storage temperature) is from -50 to +125.Then is about the recommended operating conditions.The minimum VDD (power supply voltage) is 4.75 V,the typicall is 5.00 V and the maximum is 5.25 V.The minimum Top (operating temperature) is 0,the typical is 25 and the maximum is 70.The typical clock frequency is 16.03 XHz.

The following is about the electrical characteristics of YM7402.The minimum VOH (high level output voltage) is 4.0 V at IOH=20 A.The maximum VOL (low level output voltage) is 0.4 V at IOL=1 mA.The minimum VIH1 (high level input voltage) is 3.5 V and the maximum VIL1 (low level input voltage) is 1.5 V for other terminals than /CS, DIN, /SCK, R/W terminals.The minimum VIH2 (high level input voltage) is 2.0 V and the maximum VIL2 (low level input voltage) is 0.8 V for /CS, DIN, /SCK, R/W terminals.