TZA1027 - NXP

TZA1027 Analog current buffer for CD-R and CD-RW systems

The TZA1027 is an analog current buffer IC for CD-R and CD-RW systems with a 3-spot push-pull tracking system. The IC interfaces directly to the photo diodes and TZA1020. A HF current amplifier is implemented to detect the actual HF data signal. QUICK REFERENCE DATA SYMBOL VDD Ii(cd) Ii(sd) BCAHF td(f) GSS Tamb PARAMETER supply voltage central diode input cu.

Features

• Eight amplifiers for servo and power calibration functions
• Gain selector for CD-R and CD-RW discs
• Separate data amplifier for read speed up to thirty times nominal data speed. GENERAL DESCRIPTION The TZA1027 is an analog current buffer IC for CD-R and CD-RW systems with a 3-spot push-pull tracking system. The IC interfaces directly to the photo diodes and TZA1020. A HF current amplifier is implemented to detect the actual HF data signal. QUICK REFERENCE DATA SYMBOL VDD Ii(cd) Ii(sd) BCAHF td(f) GSS Tamb PARAMETER supply voltage central diode input current satellite diode input current ba.