KS1461

PRELIMINARY RF SIGNAL PROCESSOR KS1461 INTRODUCTION The KS1461 receives optical signals from the optical pickup and makes the data-generation RF (Radio Frequency) signals needed in the system part, and the servo error signal and monitor signals, needed for stable servo control. The modes to which this RF IC can be applied are the CD 1×, 2×, 4×, and 8× modes (Wide PLL +/- 20%) and the DVD 1× and 2× CLV (Constant Linear Velocity) modes. FEATURES www.DataSheet4U.com Compatible to play back of CDs at 1×, 2×, 4×, or 8×, and DVDs at 1× and 2× Can deal with all of CD-R corresponding P/U’ s optical signal input without additional circuits Built-in PreAmp that correspond to various P/U unit and gain controllable Built-in AGC (Automatic Gain Control) circuit for intensity radiation detection feedback RF AMP & equalizer for CD 1×, 2×, 4×, 8× and DVD 1×, and 2× compatibility Astigmatism FE (Focus Error) AMP for CD and DVD built-in TE (Tracking Error) AMP built-in for 3-beam method of CD TE (Tracking Error) AMP built-in to the 1-beam DPD (Differential Phase Detector) for DVD RF mirror detection circuit built-in for CD and DVD RF defect detection circuit built-in for CD and DVD FOK (Focus O.K) signal detection circuit built-in for CD and DVD Built-in RF envelope signal generator circuit for CD and DVD Built-in ALPC (Automatic Laser Power Control) circuit for CD and DVD Built-in standard voltage generating circuit for analog circuit Built-in detec...