Philips TDA5360 - Manual (Page 3)

1998 July 30
Philips Semiconductors Objective Specification, Revision 2.2
Pre-Amplifier for Hard Disk Drive with
MR-Read / Inductive Write Heads
TDA5360
3
1 FEATURES
•
12 channels design for Single-stripe (SAL and GMR) Read / Thin-film Write heads.
• Design target 350 Mbps, for d=0 (16 / 17) rate code.
•
Differential Hybrid sense Reader architecture.
•
MR element biased by direct programmable constant Power or constant Current.
• Voltage driven Writer architecture.
•
MR read / inductive write heads biased at ground level.
• Short rise and fall time with near rail to rail voltage swing.
•
Dual power supplies : +5.0 V and -5.0 V.
•
On-chip AC couplings eliminate MR head DC and DC offset voltage.
• Programmable 3-wire Serial Port Interface for programming (3.3 V and 5 V TTL / CMOS compatible).
•
Extensive programmability of Write current wave overshoot.
• Programmable voltage / current mode write data input.
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Programmable voltage / current mode read data output.
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Programmable Read gain.
• Programmable Reader input impedance.
•
Thermal asperity detection with programmable threshold.
•
Thermal asperity compression with extensive programmability.
• High spurious-noise rejections.
•
Internal Dummy Head available for MR heads protection during switchings.
• FAST mode available for short Write to Read mode transient.
•
Sleep, Standby, Active, Servo Track Write, and Test modes available.
•
Support servo writing.
• Write / Read Fault detection with fault code read back register and Fault masking capability.
•
Low power-supplies fault protections.
•
Short Write to Read Recovery, including DC settling.
• On-chip digitizing of Temperature and MR element Resistance value.
•
Vendor ID and chip revision register.
• Illegal Multiple Device Selected detection.
•
2 pads CS0 and CS1, hard wired, for separate activation for multiple pre-amplifiers operation.
• Requires one external resistor.
2 APPLICATIONS
Hard Disk Drive (HDD).