Disk Pulse Detector - National Semiconductor

The DP8464B Disk Pulse Detector utilizes Analog and digital circuitry to detect amplitude peaks of the signal received from the read/write Amplifier fitted with the heads of disk drives. The DP8464B produces a TTL compatible output which, on the positive leading edge, indicates a signal peak. Electrically, these peaks correspond to flux reversals on the magnetic medium. The signal from the read/write Amplifier when reading a disk is therefore a series of pulses with alternating polarity. The Disk Pulse Detector accurately rep- licates the time position of these peaks. The DP8464B Disk Pulse Detector has three main sections: the Amplifier the time channel and the Gate channel. The Amplifier section consists of a Wide Bandwidth Amplifier a full wave Rectifier and Automatic Gain Control (AGC). The time channel is made from the differentiator and its follow- ing bi-directional one shot, while the Gate channel is made from the differential Comparator with hysteresis, the D flip- flop and its following bi-directional one shot. By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
DP8464BJ-3 Rochester Electronics LLC Pulse Detector
DP8464BV-1 Rochester Electronics LLC Pulse Detector, BIPolar, PQCC28, PLASTIC, LCC-28
DP8464BN-3 Rochester Electronics LLC Pulse Detector, BIPolar, PDIP24, 0.300 INCH, PLASTIC, DIP-24
DP8464BN-2 Rochester Electronics LLC Pulse Detector, BIPolar, PDIP24, 0.300 INCH, PLASTIC, DIP-24
DP8464BV-2 Rochester Electronics LLC Pulse Detector, BIPolar, PQCC28, PLASTIC, LCC-28
DP8464BV-3 Rochester Electronics LLC Pulse Detector, BIPolar, PQCC28, PLASTIC, LCC-28
DP8464B 's PackagesDP8464B 's pdf datasheet



DP8464B Pinout, Pinouts
DP8464B pinout,Pin out
This is one package pinout of DP8464B,If you need more pinouts please download DP8464B's pdf datasheet.

DP8464B Application circuits
DP8464B circuits
This is one application circuit of DP8464B,If you need more circuits,please download DP8464B's pdf datasheet.


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