YM3805

The YM3805 is designed as a compact disc player signal processor (SGP) and servo controller CMOS LSI developed by tamaha. It carries out the digital filtering and other signal processing useful for optical pick-up EFM signal demodulation and erroneous signal detection and correction and improved audio quality, as well as servo control. YM3805 is used in conjunction with the special serial input DAC YM3015 or YM3020.

YM3805 has many features and functions. (1)Silicon gate CMOS construction. (2)80pin flat plastic package (saves space). (3)5V single power supply. (4)Simple external connection of a crystal activates reference clock oscillations and the necessary internal timing signals. (5)EFM demodulates this digital signal. (6)Digitalizes the EFM signal, and based on that carries out clock regeneration and synchronizing signal isolation. And so on.

Some absolute maximum ratings of YM3805 have been concluded into several points as follow. (1)Its supply voltage would be from -0.3V to 7.0V. (2)Its input voltage would be from -0.3V to Vdd+0.3V. (3)Its operating temperature range would be from -30°C to 75°C. (4)Its storage temperature range would be from -50°C to 125°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of YM3805 are concluded as follow. (1)Its supply current would be typ 25mA and max 40mA. (2)Its output high level voltage would be min 4.0V. (3)Its output low level voltage would be max 0.4V. (4)Its input high level voltage would be min 2.0V. (5)Its input low level voltage would be max 0.8V. (6)Its input leakage current would be max 10uA. (7)Its recommended supply voltage would be min 4.75V and typ 5.0V and max 5.25V. (8)Its operating temperature range would be from 0°C to 70°C and should have the typical value of 25°C. And so on. If you have any question or suggestion or want to know more information of YM3805 please contact us for details. Thank you!