KS9211

The KS9211 is a CMOS integrated circuit designed for compact disc player applications. It consists of 16KSRAM, digital filter, and digital signal processing circuits.

The features of KS9211 can be summarized as (1)all digital signals for regeneration are processed using one chip; (2)internal aperture compensation digital filter; (3)EFM-PLL circuit for bit clock regeneration; (4)EFM data demodulation; (5)frame synchronous signal detection, protection; (6)compensation using mean value and prior value retention; (7)subcode signal demodulation subcode detection; (8)CLV servo for spindle motor; (9)8-bit tracking counter ; (10)CPU interface with serial bus; (11)subcode register; (12)built-in 17th digital lilter; (13)built-in 16KSRAM; (14)80 quad flat package type; (15)operating supply voltage: VDD=3.4 ~5.5V.

The absolute maximum ratings of KS9211 are (1)supply voltage VDD: -0.3~+7V; (2)input voltage VI: -0.3 ~+7V ; (3)output voltage VD: - 0.3~ + 7V ; (4)operating temperature TOPR: -20~+75°C ; (5)storage temperature TSTG: - 40~125°C.