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BL1302A57S - Monolithic serial interface compiler encoder

Download the BL1302A57S datasheet PDF. This datasheet also covers the BL1302A57 variant, as both devices belong to the same monolithic serial interface compiler encoder family and are provided as variant models within a single manufacturer datasheet.

General Description

conversion and a serial PCM interface.

The device is fabricated using the advanced double-poly nwell CMOS process.

It is pin compatible with TP3057.

Key Features

  • Complete CODEC and filtering system (COMBO) including: --- Transmit high-pass and low-pass filtering --- Receive low-pass filter with sinx/x correction --- Active RC noise filters --- A-law compatible COder and DECoder --- Internal precision voltage reference --- Serial I/O interface --- Internal auto-zero circuitry.
  • 16 pin DIP or SOP.
  • Designed for ITU.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (BL1302A57_SHANGHAIBELLING.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number BL1302A57S
Manufacturer SHANGHAI BELLING
File Size 734.39 KB
Description Monolithic serial interface compiler encoder
Datasheet download datasheet BL1302A57S Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
BL1302A57/S General Description The BL1302A57/S is an A-law monolithic PCM Pin Assignment CODEC/filter which has the A/D and D/A conversion and a serial PCM interface. The device is fabricated using the advanced double-poly nwell CMOS process. It is pin compatible with TP3057. The encode portion of each device consists of an input gain adjust amplifier, an active RC pre-filter which eliminates very high frequency noise prior to entering a switched-capacitor band-pass filter that rejects signals below 200 Hz and above 3400 Hz.