Datenblatt-Suchmaschine für elektronische Bauteile |
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TA2151FN Datenblatt(PDF) 3 Page - Toshiba Semiconductor |
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TA2151FN Datenblatt(HTML) 3 Page - Toshiba Semiconductor |
3 / 10 page TA2151FN 2003-01-16 3 Pin Function Pin No. Symbol I/O Functional Description Remarks 1 VCC ¾ Power supply input terminal. ¾ 2 RFGC I RF amplitude adjustment control signal input terminal. Controlled by 3-PWM signals. (PWM carrier = 88.2 kHz) RFGC input voltage: VRO ± 1.5 V AGC amplifier voltage again: ´0.7~1.5 (typ.) ¾ 3 VRIN I AGC amp. Reference voltage input terminal. Connected to VRO 4 FNI I Main beam I-V amp input terminal. Connected to pin diode output B + D (through resistor). 5 FPI I Main beam I-V amp input terminal. Connected to pin diode output A + C (through resistor). 6 TPI I Sub beam I-V amp input terminal. Connected to pin diode output F. 7 TNI I Sub beam I-V amp input terminal. Connected to pin diode output E. 8 MDI I Monitor photo diode amp input terminal. Connected to monitor photo diode. 9 LDO O Laser diode amp input terminal. Connected to laser diode control circuit. 10 SEL I Laser diode control signal input terminal and APC circuit ON/OFF control signal terminal. SEL Level APC Circuit LDO Detect Frequency GND OFF Connected to VCC through resister (1 k W) HiZ Low VCC ON Control signal output High 3 signals input. (VCC, HiZ, GND) 11 TEB I Tracking error balance adjustment signal input terminal. Controlled by 3-PWM signal. (PWM carrier = 88.2 kHz) 3 signals input. (2VRO, VRO, GND) 12 2VRO O Reference voltage (2VRO) output terminal. 2VRO = 4.2 V when VCC = 5 V ¾ 13 TEN I TE amp negative input terminal. Connected to TEO through feedback resistor. 14 TEO O TE error signal output terminal. ¾ 15 RFDC O RF signal peak detect output terminal. ¾ 16 FEO O Focus error signal output terminal. ¾ 17 FEN I FE amp negative input terminal. Connected to FEO through feedback resistor. 18 SEB I RFRP output circuit switching terminal. SEB Level Bottom Detection Peak Detection GND ON VCC OFF ON Low (GND) is for normal use. 19 VRO O Reference voltage (VRO) output terminal. VRO = 2.1 V when VCC = 5 V ¾ |
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