Serial Interface Codec/filter

The ETC5057 ETC5054 family consists of A-law and law monolithic PCM CODEC Filters utilizing the A/D and D/A conversion architecture shown in the block diagram below, and a serial PCM inter- face. The devices are fabricated using double- poly CMOS process. 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-ca- pacitor band-pass Filter that rejects signals below 200 Hz and above 3400 Hz. Also included are auto-zero circuitry and a companding coder which samples the filtered signal and encodes it in the companded A-law or law PCM format. The de- code portion of each device consists of an ex- panding decoder, which reconstructs the Analog signal from the companded A-law or law code, a low-pass Filter which corrects for the sin x/x re- sponse of the decoder output and rejects signals above 3400 Hz and is followed by a single-ended power Amplifier capable of driving low impedance loads. By STMicroelectronics
ETC5054 's PackagesETC5054 's pdf datasheet

ETC5054 Pinout, Pinouts
ETC5054 pinout,Pin out
This is one package pinout of ETC5054,If you need more pinouts please download ETC5054's pdf datasheet.

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