alc880 Realtek Semiconductor Corporation, alc880 Datasheet - Page 12

• Manufacturer Part Number: alc880
• Description: 7.1 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

2.
2.1. Hardware Features
7.1 Channel High Definition Audio Codec
High-performance DACs with 95dB S/N ratio
ADCs with S/N ratio greater than 85dB
Meets performance requirements for audio on PC2001 systems
8 DAC channels support 16/20/24-bit PCM format for 7.1 audio solution
3 stereo ADCs support 16/20-bit PCM format, two for microphone array, one for legacy mixer
recording
Supports 44.1/48/96/192kHz DAC sample rate
All ADCs support 44.1/48/96 kHz sample rate
Applicable for 4-channel/192kHz and 6-channel/96kHz DVD-Audio solutions
Up to four channels of microphone input are supported for AEC/BF application
High-quality differential CD input
Supports Power-Off CD function (ALC880/ALC880-LF & ALC880D/ALC880D-LF only)
Supports external PCBEEP input and built-in BEEP generator
PCBEEP Pass-Through when link is in RESET state (ALC880/ALC880-LF &
ALC880D/ALC880D-LF only)
Software selectable 2.5V/3.75V VREFOUT
Six VREFOUTs are supported
Two GPI (General Purpose Input) jack detection pins (each designed to detect 4 jacks)
16/20/24-bit S/PDIF-OUT supports 44.1/48/96kHz sample rate
16/20/24-bit S/PDIF-IN supports 44.1/48/96kHz sample rate
Optional EAPD (External Amplifier Power Down) supported
Power support: Digital: 3.3V; Analog: 3.3V/5.0V
Power management and enhanced power saving features
Compatible with AC’97
48-pin LQFP package (lead (Pb)-free package also available)
Reserve analog mixer architecture for backward compatibility with AC’97
–64dB ~ +30dB with 1dB resolution of mixer gain for finer volume control
Impedance sensing capability for each re-tasking jack
All analog jacks are stereo input and output re-tasking for analog plug & play
Built-in headphone amplifier for each re-tasking jack
Supports external volume knob control
Supports 2 GPIOs (General Purpose Input/Output) for customized applications
Hardware de-scrambling for DVD-Audio Content protection
Features
2
Track ID: JATR-1076-21
ALC880 Series
Datasheet
Rev. 1.4