CX20671 Datasheet PDF – HD Audio Codec IC – Conexant

Part Number: CX20671, CX2067111Z, CX2067121Z

Function  : Low-Power Codec SoC with Integrated Class-D Stereo Amplifier

Package: 40-QFN Type

Manufacturer: Sanken

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CX20671 codec soc

Description

Conexant’s CX20671 HD Audio codec SoC is a low-power,102 dB SNR, high performance audio codec with integrated 2-WRMS (per channel) stereo speaker amplifier with Spread Spectrum EMI dispersion technology. Two independent pairs of DACs and three independent pairs of ADCs support Multi-Streaming and Real Time Communications applications. The audio fidelity of the device exceeds Microsoft WLP
4.0 Desktop and Notebook Premium Logo requirements. Additionally, the device achieves a high level of integration by featuring an integrated 5 V to 3.3 V Low-dropout (LDO) voltage regulator that guarantees high performance analog audio performance without incurring external BOM, and an integrated 3.3 V to 1.8 V low-dropout voltage regulator used to power internal digital blocks.

Pinout

CX20671 datasheet pdf

 

Features

1. 24-bit, two pairs of independent DACs and three pairs of independent ADCs

2. ProCoustic headphone driver, which delivers 50 mW into 32 Ωload with no pop, eliminating the need for an external amplifier and DC-blocking capacitors

3. Integrated 5 V to 3.3 V low-dropout voltage regulator for improved audio
performance, eliminating need for external regulator or power transistor

4. Integrated 3.3 V to 1.8 V low-dropout voltage regulator, used to power digital blocks

5. Integrated 2 WRMS (per channel) class-D stereo speaker amplifier with Spread Spectrum and 10-kV ESD withstand capability

6. Digital Microphone interface with internal MIC boost supporting 2 digital microphone elements

 

CX20671 Datasheet PDF


 

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TDA8947J Datasheet PDF – 4-Ch, Audio Amplifier

Part Number: TDA8947J

Function: 4-channel audio amplifier

Package: plastic DIL-bent-SIL power 17 leads

Manufacturer: Philips Electronics ( https://www.nxp.com/ )

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TDA8947J datasheet

 

Description

The TDA8947J contains four identical audio power amplifiers. The device can be used as: four Single-Ended (SE) channels with a fixed gain of 26 dB, two times Bridge-Tied Load (BTL) channels with a fixed gain of 32 dB or two times SE channels (26 dB gain) plus one BTL channel (32 dB gain) operating as a 2.1 system

Pinout

TDA8947J pinout

Features

1. Soft clipping
2. Standby and Mute mode
3. No on/off switching plops
4. Low standby current
5. High supply voltage ripple rejection
6. Outputs short-circuit protected to ground, supply and across the load
7. Thermally protected

Applications:

1. Television
2. PC speakers
3. Boom box
4. Mini and micro audio receivers [ … ]

 

TDA8947J Datasheet PDF Download


TDA8947J pdf

Other data sheets are available within the file: TDA-8947J