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 H
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.