Hardware Specifications and Configurations
1-37
Audio Codec and Amplifier
Item
Specification
Audio Controller
Audio codec: Realtek ALC271X-VB3
Features
Meets WLP (Windows Logo Program) requirements for
Windows XP, Vista and Windows 7
98dB Signal-to-Noise Ratio (A-weighting) for DAC output
90dB Signal-to-Noise Ratio (A-weighting) for ADC input
4-channel DAC supports 16/20/24-bit PCM format for
independent two stereo channel or 2.1 audio playback
4-channel ADC supports 16/20/24-bit PCM format for
independent two stereo channel audio inputs
All DACs supports 44.1k/48k/96k/192kHz sample rate
All ADCs support 44.1k/48k/96k/192kHz sample rate
S/PDIF-OUT support 16/20/24-bit format and
44.1/48/88.2/96/192kHz rate
Supports MONO line level output
Supports external PCBEEP input and built-in digital BEEP
generator
Software selectable 2.5V/3.2V VREFOUT as bias voltage for
analog microphone input Progra12/+24/+36dB
boost gain for analog microphone input
Supports stereo digital microphone input
Programmable boost gain and volume control for digital
microphone input
Built-in headphone amplifiers for port-C (LINE1) and port-I
(HP OUT)
Headphone amplifier for port-I does not require DC blocking
capacitors
Two jack detection pins each designed to detect up to 4
jacks, and S/PDIF-OUT jack detection is supported
2 GPIOs are supported for customized applications (pin
shared with digital microphone interface)
EAPD (External Amplifier Power Down) is supported
Supports Anti-pop mode when analog power AVDD is On
and digital power is Off
Power support: 3.3V digital core power; 1.5V~3.3V digital IO
power for HDA link; 3.0V~5.5V analog power; 4.5V~5.5V
power stage voltage
Enhanced power management features for normal operation
and standby mode
Stereo Bridge-Tied Load Class-D amplifier at port-D has
2Watt (rms)/4
per channel output
Short circuit and thermal overload protection for Class-D
amplifier
48-pin QFN 'Green' package
Summary of Contents for Aspire 7750
Page 1: ...Aspire 7750 7750G SERVICEGUIDE ...
Page 10: ...x ...
Page 11: ...CHAPTER 1 Hardware Specification ...
Page 14: ...1 4 ...
Page 56: ...1 46 Hardware Specifications and Configurations ...
Page 57: ...CHAPTER 2 System Utilities ...
Page 79: ...CHAPTER 3 Machine Maintenance ...
Page 82: ...3 4 ...
Page 122: ...3 44 Machine Maintenance Procedures ...
Page 123: ...CHAPTER 4 Troubleshooting ...
Page 149: ...CHAPTER 5 Jumper and Connector Locations ...
Page 156: ...5 8 Jumper and Connector Locations ...
Page 157: ...CHAPTER 6 FRU List ...
Page 158: ...6 2 Exploded Diagrams 6 4 FRU List 6 6 Screw List 6 23 ...
Page 180: ...6 24 FRU Field Replaceable Unit List ...
Page 181: ...CHAPTER 7 Model Definition and Configuration ...
Page 182: ...7 2 Aspire 7750 7750G 7 3 ...
Page 253: ...CHAPTER 8 Test Compatible Components ...
Page 254: ...8 2 Microsoft Windows 7 Environment Test 8 4 ...
Page 270: ...8 18 Test Compatible Components ...
Page 271: ...CHAPTER 9 Online Support Information ...
Page 272: ...9 2 Introduction 9 3 ...
Page 274: ...9 4 Online Support Information ...