BL1302A57 - SHANGHAI BELLING

BL1302A57 Monolithic serial interface compiler encoder / filter

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 eli.

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 application http://www.belling.com.cn -1- Total 17 Pages 8/28/2006 Wrote by 2006
• ±5V operation
• Low power: Typical 50mW Stand-by 3mW
• Automatic power-down
• TTL or CMOS compatible digital interfaces Block Diagram BL130.