DP8464B Datasheet (National Semiconductor)

DP8464B, Disk Pulse Detector

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 Electrical

DP8464B Features

* Y Y Y Y Y Y Y Y Y Y Wide input signal amplitude range from 20 mVpp to 660 mVpp differential Data rates up to 15 Megabits sec 2 7 code On-chip differential gain controlled amplifier differentiator comparator gating circuitry and output pulse generator Input capacitively coupled directly from the