Audio

CXA20690 PDF Datasheet – Audio/Video Switch

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Part Number: CXA20690, Correct Partnumber : CXA2069Q

Function: S2-Compatible 7-Input 3-Output Audio/Video Switch

Package: QFP 64 Pin Type

Manufacturer: Sony Corporation

Images:

CXA20690 datasheet

 

Description

The CXA20690 is a 7-input, 3-output audio/video switch featuring I2C bus compatibility for TVs. This IC has input pins that are compatible with S2 protocol.

The device is a specific integrated circuit (IC) manufactured by Sony. It is a part of the CXA series of ICs, which are known for their use in various electronic applications, including audio and video processing.

This IC is a stereo audio power amplifier IC that is designed to provide amplification for audio signals. It is often used in consumer electronics devices such as audio systems, radios, and portable music players.

Pinouts:

CXA20690 pinout

 

Features:

1. 4 inputs that are compatible with S2 protocol

2. Serial control with I2C bus

3. 7 inputs, 3 outputs

4. The desired inputs can be selected independently for each of the 3 outputs

5. Wide band video amplifier (20 MHz, –3 dB)

6. Y/C MIX circuit

7. Slave address can be changed (90H/92H)

8. Audio muting from external pin

9. High impedance maintained by I2C bus lines (SDA, SCL) even when power is OFF

10. Wide audio dynamic range (3 Vrms typ.)

CXA20690 pdf

Applications

1. Audio/video switch featuring I2C bus compatibility for TVs

Structure:

1. Bipolar silicon monolithic IC

 

CXA20690 PDF Datasheet

ALC202 PDF Datasheet – AC97 Audio CODEC

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AC’97 (Audio Codec ’97) is a specification for audio codecs and associated controllers used in personal computers and other devices. AC’97 was developed by Intel in the late 1990s and has since become a standard for audio interfaces on motherboards, sound cards, and other computer systems.

Part Number: ALC202

Function: AC97 Audio CODEC

Package: LQFP 48 Pin type

Manufacturer: Realteck, Avance Logic

Images:ALC202 pdf realteck

Description

The ALC202 / ALC202A is an 18-bit, full duplex AC’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. The ALC202 CODEC provides two pairs of stereo outputs with independent volume controls, a mono output, and multiple stereo and mono inputs, along with flexible mixing, gain and mute functions to provide a complete integrated audio solution for PCs

Features

1. Single chip audio CODEC with high S/N ratio (>90 dB)

2. Compliant with AC’97 2.2 & WHQL specifications

3. Support of S/PDIF out is compliant with AC’97 rev2.2 specifications

4. Meets performance requirements for audio on PC2001 systems

5. Meets Microsoft PC99 & WLP 2.0 audio requirements

6. 3D Stereo Enhancement

7. Multiple CODEC extension capability

8. External Amplifier Power Down (EAPD) capability

9. High performance converter technology

Pinouts:

ALC202 pinout datasheet

 

Here are some key points about AC’97 audio codecs:

1. Audio Codec: An AC’97 audio codec is an integrated circuit that performs analog-to-digital (ADC) and digital-to-analog (DAC) conversion for audio signals. It interfaces with the audio controller on the host system to process audio data.

2. Multichannel Audio: AC’97 codecs support multichannel audio configurations, allowing for stereo, 4-channel, 5.1-channel, and other audio setups.

3. Sampling Rates: AC’97 supports various sampling rates for audio playback and recording, including commonly used rates like 44.1 kHz (CD audio), 48 kHz (DVD audio), and more.

ALC202 PDF Datasheet

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