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1.2 System Unit 1 Hardware Overview
• Dual 12-bit or Single 24-bit configurable DVO ports for up-to 333Mpixels/sec
transfer rates
• 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
• Full support for all Windows (ME, 2K, XP), MAC OSX & Linux operating
systems
• 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
• 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
• One LPC47N227 chip is used.
• This gate array has the following features:
− Floppy Disk Controller
− Parallel Port Controller
Satellite P20-25 Series Maintenance Manual 1-7