TA8496FL

www.DataSheet4U.com TA8496FL Toshiba Bipolar Linear Integrated Circuit Silicon Monolithic TA8496FL Magnetic Head R/W IC This IC enables writing and detection of magnetic recording signals. Features Operating voltage range: VCC = 3.5 to 7 V VBAT = 1.8 to 7 V Output current: Iout = 20 mA (max) Constant current operating function : IOC = (0.25 (V) × 160 (A))/RWR (typ.) Weight: 0.05 g (typ.) Block Diagram VCC 9 HDFB HDOUT 19 18 10 kΩ 100 Ω VCC − VF − 0.3 V 30 kΩ 30 kΩ VREF 24 COMIN 8 40 dB HEAD-AMP 20 dB AMP2 AMP3 21 AHDIN 20 ACOM COM-AMP 2 VBAT ON/OFF 7 Control circuit R/W 6 ENA 5 H-SW control circuit CLK 4 22 HDIN 23 COM AIN2 17 10 kΩ T1 16 100 kΩ 10 kΩ 20 dB 30 dB 13 AOUT3 FCNT 12 AOUT2 15 100 kΩ AIN3 14 10 kΩ 316 kΩ CFIL 10 Filter 3 WRCNT 1 WRGND 11 RDGND 1 2003-10-07 TA8496FL Pin Function Pin Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Symbol WRGND VBAT WRCNT CLK ENA R/W ON/OFF COMIN VCC CFIL RDGND FCNT AOUT3 AIN3 AOUT2 T1 AIN2 HDOUT HDFB ACOM AHDIN HDIN COM Vref GND for write block High-switch control power supply Write output setting pin High-switch operation control signal input High-switch enable signal input Read/write select signal input Chip enable signal input Internal reference voltage setting (fine adjustment) Power supply input pin Power supply filter connecting pin (C = 0.1 µF) GND for read block Cut-off frequency setting pin Amp 3 output Amp 3 input Amp 2 output Amp 2 test pin Amp 2 input Head amp output Head amp feedb...