alc268 Realtek Semiconductor Corporation, alc268 Datasheet - Page 10

• Manufacturer Part Number: alc268
• Description: 2+2 Channel High Definition Audio Codec
• Manufacturer: Realtek Semiconductor Corporation

2.
2.1. Hardware Features
2+2 Channel High Definition Audio Codec
Meets WLP (Windows Logo Program) 3.10 premium audio requirements
ALC268-VB1 meets future WLP requirements that become effective from 01 June 2008
95dB Signal-to-Noise Ratio DAC performance and 90dB Signal-to-Noise Ratio ADC performance
Two stereo DACs support independent 16/20/24-bit PCM format playback
Two stereo ADCs support independent 16/20-bit PCM format recording
Two stereo ADCs support independent 16/20/24-bit PCM format recording (ALC268-VB1)
All DACs supports 44.1/48/96/192kHz sample rate
All ADCs support 44.1/48/96kHz sample rate
16/20/24-bit S/PDIF-OUT supports 44.1/48/96/192kHz sample rate
Up to four channels of microphone input are supported for AEC/BF applications
Supports MONO line output with independent volume control
High-quality analog differential CD input
Supports external PCBEEP input and built-in digital BEEP generator
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
Programmable 20dB and 40dB boost for analog microphone input
Supports hardware digital volume control for digital microphone input
Built-in headphone amplifiers for port-A and port-D
4 GPIOs (GPIO0/GPIO3 are digital GPIO shared with digital MIC interface, GPIO1/GPIO2 are
analog) for customized applications
EAPD (External Amplifier Power Down) is supported
Features
2
Track ID: JATR-1076-21
ALC268 Series
Datasheet
Rev. 1.3