KA3012D Fairchild Semiconductor, KA3012D Datasheet
KA3012D
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KA3012D Summary of contents
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... Digital video disk RAM (DVD-RAM) • Digital video disk player (DVDP) • Other compact disk media ©2000 Fairchild Semiconductor International Description The KA3012D is a monolithic IC, and suitable for 4-CH motor driver which drives sled motor, loading motor, focus V =4.2V & tracking actuator of CD-media system and built in OP- ...
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... Pin Assignments FIN (GND KA3012D FIN (GND) 2 KA3012D ...
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... KA3012D Pin Definitions Pin Number Pin Name 1 CH1-O 2 CH1-O 3 AMP1-O 4 AMP1- AMP1-I(+) 6 BIAS 7 SVCC 8 GND 9 MUTE 10 AMP2-I(+) 11 AMP2- AMP2-O 13 AMP2-O 14 CH2-O 15 GND 16 CH3-O 17 CH3-O 18 AMP3-O 19 AMP3- AMP3-I(+) 21 PVCC2 22 PVCC1 23 AMP4-I(+) 24 AMP4- AMP4-O 26 CH4-O 27 CH4-O 28 GND I/O Pin Function Description O Drive CH 1 output ( ) ...
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... The drive channel outputs are determined pre OP-amp output. GND CC1 CC2 + 10k 10k TSD 10k / 10k + 10k + SV MUTE CC GND GND GND + + + PV /2 CC2 PV /2 CC2 20k + + LEVEL-SHIFT + LEVEL-SHIFT + 20k CC2 CC2 10k + + + KA3012D ...
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... KA3012D Equivalent Circuits Op-amp input AMP-I (+) 5, 10, 20, 23 Pin Drive output 10k 10k 1k Mute 50k Mute (9 Pin) AMP 11, 19, 24 Pin CH-O (2, 13, 17, 26 Pin) CH-O (1, 14, 16, 27 Pin) 50k 5 Op-amp output 80 AMP-O 3, 12, 17, 25 Pin 80 Bias Bias (6 Pin) 200 ...
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... Recommended Operating Condition ( Parameter Supply voltage Symbol OPR T STG 1mm PCB (Phenolic resin material 100 125 150 175 Symbol Min 4 CC1 CC2 6 KA3012D Value Unit 15 V note 1 + +150 C Ambient temperature Typ. Max. Unit - 13.2 V ...
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... KA3012D Electrical Characteristics (Ta= =5V CC1 CC2 L Parameter Symbol DRIVE CIRCUIT Quiescent current 1 Quiescent current 2 Output offset voltage 1 Output offset voltage 2 Max.output amplitude 1 Max.output amplitude 2 Voltage gain 1 Voltage gain 2 Mute on voltage Mute off voltage INPUT OP-AMP CIRCUIT Input offset voltage ...
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... R12 / (R11 + R12)=460mV BE REF BG • When the chip temperature rises up to 175 C, the turn-on voltage of the Q11 drops down to 460mV. (Hysteresis and Q11 turns on so the output circuit is muted REF BG Output driver bias R11 Q11 R12 8 KA3012D Output driver bias (approximately). ...
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... KA3012D 3. DRIVER BIAS + (6 Pin) Pre-amp + AMP-I (+) (5, 10, 20, 23 Pin) AMP 10k (4, 11, 19, 24 Pin) AMP-O (3, 12, 18, 25 Pin) • The gain of pre-op. Amplifier can be changed by manipulating amp input resistor or feedback resistor. • The voltage the reference voltage given by the bias voltage of the pin #6. ...
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... CH 2 and CH 3 (18dB and CH 3 (18dB KA3012D 5 14 ...
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... L4 V SW4 SW1 OPIN (+) SW5 IN3 V IN2 V IN1 CC1 KA3012D Bias 2. 12V OPIN ( ) SW6 IN5 V IN4 ’ CC2 V SW3 ...
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... Typical Application Circuits FOCUS TRACKING 10k 10k 10k 10k SERVO PREAMP BIAS SLED 10k GND KA3012D GND BIAS 12 MICOM LOADING (SPINDLE) MUTE M 10k 10k M 10k KA3012D ...
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... KA3012D DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...