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
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 disk head read write amplifier Adjustable comparator hysteresis AGC and differentiator time constants set by external components TTL compatible digital Inputs and Outputs Encoded Data Output may conn.
DP8464B Disk Pulse Detector
June 1989
DP8464B Disk Pulse Detector
General Description
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 replicates 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 wid
DP8464B Datasheet
