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TDA1302_1
2 Wed Sep 14 13:30:56 1994
Philips Semiconductors
Preliminary specification
Data amplifier and laser supply circuit for CD player and read only optical systems
FEATURES • Six input buffer amplifiers with low-pass filtering and with virtually no offset • HF data amplifier with a high or low gain mode • Two built-in equalizers for single or double-speed mode ensuring high performance in both modes • Fully automatic laser control including stabilization and an ON/OFF switch, plus a separate supply (VDDL) for power reduction • Adjustable laser bandwidth and laser switch-on current slope • Protection circuit to prevent laser damage due to supply voltage dip • Optimized interconnectiion between pick-up detector and digital servo processor (TDA1301T) • Wide supply voltage range • Wide