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AK4140 - Digital BTSC Decoder

Description

The AK4140 is a BTSC decoder, which is optimized for Digital STB/TV application.

Features

  • † Capable of receiving 4.5MHz intercarrier sound and FM demodulation † Alignment Free Digital BTSC decoding (Mono/Stereo/SAP) † Programmable pilot/SAP/noise detection threshold † Automatic return to mono dependant on pilot/noise level † Mono/Stereo/SAP selectable output † Digital volume control † Soft Mute function † Digital HPF for DC-Offset cancel † Sampling Rate (fs): 32k/44.1k/48kHz † Master Clock: 256fs/384fs /512fs/768fs † Audio Interface: Master or Slave Mode † Output format: 16bit MSB ju.

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Datasheet preview – AK4140

Datasheet Details

Part number AK4140
Manufacturer Asahi Kasei Microsystems
File Size 596.73 KB
Description Digital BTSC Decoder
Datasheet download datasheet AK4140 Datasheet
Additional preview pages of the AK4140 datasheet.

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Full PDF Text Transcription

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ASAHI KASEI [AK4140] AK4140 Digital BTSC Decoder GENERAL DESCRIPTION The AK4140 is a BTSC decoder, which is optimized for Digital STB/TV application. The AK4140 achieves high audio performance using original demodulation techniques for 4.5MHz inter-carrier sound, and the digital BTSC decoding architecture using digital dbx-TV® technology licensed from THAT Corporation requires no alignment of external parts. The AK4140 supports major audio data formats (MSB justified, I2S, TDM) to interface with usual DSP. Therefore, the AK4140 is suitable for the systems such as Digital STB/TV, AV recorder etc. The dbx-TV® brand identifies a range of technology solutions for digital TV-audio decoding developed and licensed by THAT Corporation.
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