20
Chapter 1
Audio Subsystem
Item
Specification
Chipset
Realtek ALC268VC
Audio Onboard or Optional
Onboard
Mono or Stereo
Stereo
Resolution
•
Two DACs channels support 16/20/24-bit PCM format playback
•
Two stereo ADCs support 16/20/24-bit PCM format recording
Compatibility
•
Support hardware digital volume control for digital microphone input
•
Software programmable boost gain (+20/+40dB) for analog
microphone input
•
Built-in headphone amplifiers for port-A and port-D.
•
Four GPIOs (General Purpose Input and Output) for customized
applications
•
Supports Anti-pop mode when analog power AVDD is on and digital
power is off
•
Integrates high pass filter to cancel DC offset generated from digital
microphone (ALC 268B)
Sampling Rate
•
All DACs supports 16/20/24-bit, 44.1k/48k/96k/192kHz sample rate
•
All ADCs supports 16/20/24-bit, 44.1k/48k/96k Hz sample rate
•
16/20/24-bit S/PDIF-OUT support 44.1k/48k/88.2k/96k/192kHz
sample rate
Internal Microphone
Support stereo digital microphone interface to improve voice quality
Internal Speaker/Quantity
2
Features
•
High-performance DACs with 95dB SNR (A-Weighting), ADCs with
90dB SNR (A-Weighting) Meets premium performance requirements
for Microsoft WLP 3.1
•
High-quality analog differential CD input
•
Supports external PCBEEP input, built-in digital BEEP generator, and
pass through function in D3 mode
•
Software selectable 2.5V/3.75V/4.2V VREFOUT
•
Two jack detection pins each designed to detect up to 4 jacks
•
1dB resolution of analog output volume control
•
48-pin LQFP 'Green' package
•
Support low voltage IO for HDA Link (1.5V~3.3V) (3.3 ~ 5 V) for
analog power
Содержание TravelMate 6493 Series
Страница 6: ...VI ...
Страница 10: ...X Table of Contents ...
Страница 14: ...4 Chapter 1 System Block Diagram ...
Страница 38: ...28 Chapter 1 ...
Страница 55: ...Chapter 2 45 3 Reboot the system and key in the selected string qjjg9vy 07yqmjd etc for the BIOS user password ...
Страница 56: ...46 Chapter 2 ...
Страница 64: ...54 Chapter 3 7 Remove the 3G cover as shown ...
Страница 71: ...Chapter 3 61 8 Press down on the locking catch to release the ODD cover and remove ...
Страница 117: ...Chapter 3 107 5 Replace the MIC as shown and secure the cable with the adhesive strips ...
Страница 166: ...156 Chapter 4 ...
Страница 187: ...Chapter 6 177 ...
Страница 220: ...Appendix A 210 ...
Страница 226: ...216 Appendix C ...