BA6898FP

Optical disc ICs 4-channel BTL driver for CD players BA6898S / BA6898FP The BA6898S / BA6898FP ICs contain a 4-channel BTL driver , 5V regulator (which requires an externally connected PNP transistor), multi-purpose operational amplifier, and reset output for use with CD players. Also equipped with an input pin for gain adjustment for all channels of the driver block so that the gain can be adjusted to the desired value for your application. Furthermore, a built-in level shift circuit exists to further reduce the amount of external components required. FApplications CD players, CD-ROM, and other optical disc equipment FFeatures 1) 4-channel BTL driver. 2) Gain is adjustable with externally connected resistor. 3) Internal thermal shutdown circuit. 4) Internal 5V regulator (requires external PNP transistor). 5) Internal multi-purpose operational amplifier. 6) Equipped with reset output pin. FAbsolute maximum ratings (Ta = 25_C) 671 Optical disc ICs FBlock diagram BA6898S/BA6898FP 672 Optical disc ICs BA6898S/BA6898FP 673 Optical disc ICs FPin descriptions BA6898S BA6898S/BA6898FP BA6898FP 674 Optical disc ICs FInput / output circuits BA6898S/BA6898FP 675 Optical disc ICs BA6898S/BA6898FP FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 8V, f = 1kHz, RL = 8Ω) 676 Optical disc ICs FMeasurement circuit BA6898S/BA6898FP 677 Optical disc ICs FCircuit operation (1) Driver block The input is the focus and tracking error signals from the se...