Gateway EC14D Series Service Manual page 27

Audio Interface
Item
Audio Realtek ALC269X-GR for High Definition Audio Codec
Controller
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Chapter 1
98dB Signal-to-Noise Ratio (A-weighting) for DAC/ADC output
Meets WLP (Windows Logo Program) 3.10 and future WLP requirements
2+2-channel DAC supports 16/20/24-bit PCM format for independent two
stereo channel audio playback
4-channel ADC supports 16/20/24-bit PCM format for independent two
stereo channel audio inputs
All DACs supports 44.1/48/96/192kHz sample rate
All ADCs support 44.1/48/96kHz sample rate
SPDIF-OUT support 16/20/24-bit format and 32/44.1/48/88.2/96/192kHz
rate
Supports MONO line level output
Supports external PCBEEP input and built-in digital BEEP generator
Software selectable 2.5V/3.2V/4.2V VREFOUT as bias voltage for analog
microphone input
Two jack detection pins each designed to detect up to 4 jacks
1dB resolution of input and output volume control
Programmable +10/+20/+30dB boost gain for analog microphone input
Built-in headphone amplifiers for port-A and port-C.
2 GPIOs are supported for customized applications (pin shared with digital
microphone interface)
EAPD (External Amplifier Power Down) is supported (pin shared with
secondary SPDIF-OUT)
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; 3.3V~5.0V analog power; 3.3V~5.0V power stage voltage
Enhanced power management features
Secondary SPDIF-OUT supports 16/20/24-bit format and 32k/44.1k/48k/
88.2k/96k/192kHz rate
Supports stereo digital microphone input
Programmable boost gain and volume control for digital microphone input
Headphone amplifier for port-A does not require DC blocking capacitors
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
Supports digital PWM output at port-D which system integrator can easily
connect the output to external power amplifier receives digital audio
stream
Five band hardware equalizer designed for BTL output (port-D) to
compensate for frequency response while driving the mini-speaker
Intel low power ECR compliant: supports power status control, jack
detection, and wake-up event in D3 mode
48-pin QFN 'Green' package
Specification
17