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1-42 Hardware Specifications and Configurations
Audio Codec and Amplifier
Item Specification
Audio Controller Realtek ALC669X-GR
Features

Meets Microsoft WLP (Windows Logo Program) audio
requirements

High performance DACs with digital >110dB and analog
98dB (A-weighting) signal-to-noise

High performance ADCs with digital > 100dB and analog
90dB (A-Weighting) signal-to-noise ratio

Six DAC channels support 16/20/24-bit PCM format for 5.1
sound playback

Two stereo ADCs support 16/20/24-bit PCM format, multiple
stereo recording

All DACs supports 44.1k/48k/96k/192kHz sample rate

All ADCs supports 44.1k/48k/96k/192kHz sample rate

Primary 16/20/24-bit SPDIF-OUT supports
32k/44.1k/48k/88.2k/96k/192kHz sample rate

Secondary 16/20/24-bit SPDIF-OUT supports
32k/44.1k/48k/88.2k/96k/192kHz sample rate

Analog jacks (port-A, B, C, E and G) support stereo input and
output re-tasking

Support MONO output at port-H

Port-A/D/E/F built in headphone amplifiers

Port-E and Port-F headphone amplifiers can drive earphone
directly without DC blocking capacitor

Port-B/C/E/F with software selectable boost gain
(+10/+20/+30dB) for analog microphone input

Supports external PCBEEP input and built-in digital BEEP
generator

Software selectable 2.5V/3.2V VREFOUT

Supports legacy analog mixer architecture

Four channels of digital microphone array input for voice
applications

Two jack detection pins each designed to detect up to 4 jacks
plugging

1.0dB/step playback volume control

1.5dB/step recording volume control

High pass filter to cancel DC offset from AD converter

Jack detection function is supported when device is in power
down mode (D3)

2 GPIOs (General Purpose Input and Output) for customized
applications. GPIO0 and GPIO1 share pin with digital
microphone

Supports anti-pop mode when analog power AVDD is on and
digital power is off.