This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Images are for reference only,

See Technical Specifications

ALC202A +BOM

Consumer IC

Manufacturer:

REALTEK
Mfr.Part #:

ALC202A
Datasheet:

ALC202A Datasheet (PDF)
Package/Case:

QFP48
Product Type:

Controllers
EDA/CAD Models:

Request Free CAD Models for ALC202A

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

ALC202A General Description

General Description The ALC202/ALC202A is an 18-bit, full duplexAC'97 2.2 compatible stereo audio CODEC designed for PC multimedia systems, including host/soft audio and AMR/CNR based designs. The ALC202 incorporates proprietary converter technology to achieve a high SNR, greater than 90 dB. The ALC202 AC'97 CODEC supports multiple CODEC extensions with independent variable sampling rates and built-in 3D effects.Features Single chip audio CODEC with high S/N ratio (>90 dB) Compliant with AC’97 2.2 & WHQL specifications Support of S/PDIF out is compliant with AC’97 rev2.2 specifications Meets performance requirements for audio on PC2001 systems Meets Microsoft PC99 & WLP 2.0 audio requirements 18-bit Stereo full-duplex CODEC with independent and variable sampling rate 18-bit ADC and 20-bit DAC resolution Four analog line-level stereo inputs with 5-bit volume control: LINE_IN, CD, VIDEO, AUX High quality differential CD input Two analog line-level mono input: PC_BEEP,PHONE_IN Supports double sampling rate (96KHz) of DVD audio playback Two software selectable MIC inputs +30dB boost preamplifier for MIC input Stereo output with 6-bit volume control Mono output with 5-bit volume control Headphone output with 50mW/8Ωdriving capability (ALC202) Line output with 50mW/8Ωdriving capability (ALC202A) Headphone jack-detect function to mute LINE/MONO/HP output, and to control S/PDIF output 3D Stereo Enhancement Multiple CODEC extension capability External Amplifier Power Down (EAPD) capability High performance converter technology Power management and enhanced power saving features 2 GPIO pins No external crystal/clock required 14.318MHzÆ24.576MHz PLL saves crystal DC Voltage volume control Auxiliary power (VAUX ) to support Power Off CD function Power support: Digital: 3.3V; Analog: 3.3V/5V Standard 48-Pin LQFP Package

Key Features

1. Provides High Definition (HD) audio quality for multimedia applications.
2. Supports 48 kHz sampling rates with 16/20/24-bit resolutions.
3. Supports 2-channel analog output and a single digital microphone input.
4. Integrated 50mW/20 ohm headset audio amplifier.
5. Provides 4-Channel digital-to-analog converters (DACs) for multi-speaker output.
6. Compatibility with AC'97 version 2.3 audio specifications.

Application

1. Desktop computers and laptops: Used in motherboards, sound cards, and audio peripheral devices to provide audio output and recording capabilities.
2. Multimedia devices: Used in audio/video players, gaming consoles, and set-top boxes to decode and output audio signals.
3. Communication devices: Used in VoIP phones, video conferencing systems, and intercom systems to process audio input/output.