TZA1024

INTEGRATED CIRCUITS DATA SHEET TZA1024 Data amplifier and laser supply circuit for CD audio and video optical systems (ADALAS) Product specification File under Integrated Circuits, IC01 1998 Oct 30 Philips Semiconductors Product specification Data amplifier and laser supply circuit for CD audio and video optical systems (ADALAS) FEATURES Supports a wide range of voltage output mechanisms RF amplifier designed for audio and video applications with data rates up to a maximum of n = 4 times speed Programmable RF gain for CD-Audio/Video (CD-A/V) and CD-Read/Write (CD-R/W) discs Adjustable equalizer for n = 1 or n = 2 times speed Fully Automatic Laser Power Control (ALPC) including stabilization plus a separate laser supply voltage for power efficiency Adjustable current range of ALPC output Automatic N- or P-substrate monitor diode selection Adjustable laser bandwidth and laser switch-on current slope using external capacitor Protection circuit to prevent laser damage due to laser supply voltage dip Optimized interconnection between data amplifier and Philips’ digital signal processor CD10 (SAA7324) Wide supply voltage range Power-down switch to reduce power consumption during standby Low power consumption. GENERAL DESCRIPTION TZA1024 The RF bandwidth allows this device to be used in CD-A/V and CD-R/W applications with a data rate up to a maximum of n = 4 times speed. The RF gain can be adapted for CD-A/V discs or CD-R/W discs by means of the gain se...