TZA1027HL

INTEGRATED CIRCUITS DATA SHEET TZA1027 Analog current buffer for CD-R and CD-RW systems Preliminary specification File under Integrated Circuits, IC01 1999 Sep 17 Philips Semiconductors Preliminary specification Analog current buffer for CD-R and CD-RW systems 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 bandwidth flatness delay servo satellite detector gain ambient temperature WRON = 1 WRON = 1 Ci = 5 pF Ci = 5 pF; f = 0.1 to 32 MHz HG = 1 HG = 0 CONDITIONS MIN. 4.5 0 0 72 − − − 0 TYP. 5.0 − − − 30 32 8 − TZA1027 MAX. 5.5 3400 520 − 200 − − 70 UNIT V µA µA MHz ps °C ORDERING INFORMATION TYPE NUMBER TZA1027HL PACKAGE NAME LQFP32 DESCRIPTION plastic low profile quad flat package; 32 leads; body 5 × 5 × 1.4 mm VERSION SOT401-1 1999 Sep 17 2 Philips Semiconductors Preliminary specification Analog current buffer for CD-R and CD-RW systems BLOCK DIAGRAM TZA1027 handbook, full pagewidth TZA1027 A1 7 23 A1LF A2 2 28 ...