Toshiba Satellite P20-25 Series, Maintenance Manual

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1.2 System Unit 1 Hardware Overview
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Dual 12-bit or Single 24-bit configurable DVO ports for up-to 333Mpixels/sec
transfer rates
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Improved visual quality for all display planes (desktop or overlay) over all
display devices (LCD, CRT, TV) – enabled by improved filtering, adaptive de-
interlacing & per-pixel gamma-correction hardware circuitry
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Full support for all Windows (ME, 2K, XP), MAC OSX & Linux operating
systems
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PowerMizer3.0 technology for further maximizing battery life, while
minimizing performance compromises - through dynamic intelligent powering
down of currently unused functional blocks
•
Advanced TSMC 0.15 micron with 8-layer metals process, for maximizing
performance while minimizing power – a critical mobile combination
•
31x31mm, 701 EPBGA package
Audio subsystem
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Cirrus logic ALC202 for AC97 codec
– Ac 97 2.1 Compatible
– 20-bit Stereo Digital-to-Analog Converters.
– 18-bit Stereo Analog-to- Digital Converters.
– Sample Rate Converters
– Four Analog Line-level Stereo Inputs for LIN_IN,CD,VIDEO, and
AUX
– Two Analog Line-level Mono Inputs for Modem and Internal PC
Beep
– Dual Stereo Line-level Outputs for LINE_OUT and ALT_LINE
_OUT
– Dual Microphone Inputs
– High Quality Pseudo-Differential CD Input
– Extensive Power Management Support
– Meets or Exceeds the Microsoft® PC 99 Audio Performance
Requirements
– S/PDIF Digital Audio Output
– CrystalClear ® 3D Stereo Enhancement
Super I/O
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One LPC47N227 chip is used.
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This gate array has the following features:
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Floppy Disk Controller
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Parallel Port Controller
Satellite P20-25 Series Maintenance Manual 1-7