CXA2521AQ

The CXA2521AQ is an iC for RF signal processing of CD player and CD-ROM.The mirror signal is output by comparing to the signal K (2/3 level of the J peak value which is peak-held with a large time constant) where the difference of hold signals H and I is obtained. The mirror output is low for tracks on the disc and high for the area between tracks (the mirror areas).In addition, a high signal is output when a defect is detected. The mirror hold time constant must be sufficiently large in comparison with the traverse signal.

Features of the CXA2521AQ are:(1)peak hold circuit time constant of mirror circuit can be adjusted (switching function provided); (2)accurate mirror detection is possible from traverse signal of highllow speed search.; (3)fluctuations of characteristics ara very  small,which are caused by variations of resistance value and deviations of temperature characteristics for lC internaVexternal resistors, because the input and feedback resistors of the tracking error amplifier are externally attached; (4)APC (automatic power control) function.

The absolute maximum ratings of the CXA2521AQ can be summarized as:(1)supply voltage :7.0V;(2)storage temperature range:-65 to 150;(3)allowable power dissipation:800mW.The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version of the datasheet(s).In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment,medical equipment, and safety equipment), safety should be ensured by using semiconductor devices that feature assured safety or by means of users' fail-safe precautions or other arrangement.In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during operation of the user's units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual property claims or any other problems CXA2521AQ that may result from applications of information, products or circuits described in the datasheets.