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TA2157FN Datasheet(PDF) 4 Page - Toshiba Semiconductor |
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TA2157FN Datasheet(HTML) 4 Page - Toshiba Semiconductor |
4 / 14 page TA2157F/FN 2002-11-21 4 Pin No. Symbol I/O Function Description Internal Circuit 9 TEBC I Tracking error balance adjustment signal input pin Adjusts TE signal balance by eliminating carrier component from PWM signal (3-state output, PWM carrier = 88.2 kHz) output from TC94A14F/FA/FB TEBC pin using RC-LPF and inputting DC. TEBC input voltage: GND~VCC 10 TEN I Tracking error signal generation amp negative-phase input pin 11 TEO O Tracking error signal generation amp output pin. Combining TEO signal and RFRP signal with TC94A14F/FA/FB configures tracking search system. 12 RFDC O RF signal peak detection output pin 13 GVSW I AGC/FE/TE amp gain change pin GVSW Mode GND CD-RW HiZ VCC Normal 9 15 k W 11 10 20 k W 167 W VC 167 W VC 12 15 k W 500 W 13 30 k W |
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