TZA1015T

INTEGRATED CIRCUITS DATA SHEET TZA1015 Data amplifier and laser supply circuit for CD and read-only optical systems (HDALAS) Product specification Supersedes data of 1998 Sep 09 File under Integrated Circuits, IC01 1999 Aug 19 Philips Semiconductors Product specification Data amplifier and laser supply circuit for CD and read-only optical systems (HDALAS) FEATURES Six input buffer amplifiers with low-pass filtering and virtually no offset Universal photodiode IC interface using internal conversion resistors RF data amplifier with wide bandwidth designed for data rates up to a maximum of 30× Programmable RF gain for CD-A/V, CD-R, CD-R/W and CD-ROM applications Programmable RF bandwidth for optimal playability Radial error signal for fast track counting Programmable RF/Fast Track Count (FTC) gain for optimal dynamic range Fully automatic laser control including stabilization and on/off switch plus a separate supply for power efficiency Automatic monitor diode polarity selection Adjustable laser bandwidth and laser switch-on current slope using external capacitor Protection circuit to prevent laser damage due to supply voltage dip Optimized interconnection between data amplifier and Philips’ digital signal processor family (CD7, ACE and MACE) Wide supply voltage range Wide temperature range Low power consumption. GENERAL DESCRIPTION TZA1015 The TZA1015 is a data amplifier and laser supply circuit for 3-beam pick-up detectors found in a wide rang...