821004J
Overview
The 821004J is a single-chip, four channel PCM CODEC with on-chip filters. The device provides analog-to-digital and digital-to-analog conversions and supports both a-law and µ-law companding.
- 4 channel CODEC with on-chip digital filters
- Selectable A-law or µ-law companding
- Master clock frequency selection: 2.048 MHz, 4.096 MHz or
- 192 MHz - Internal timing automatically adjusted based on MCLK and frame sync signal
- Separate PCM and master clocks
- Single PCM port with up to 8.192 MHz data rate (128 time slots)
- Transhybrid balance impedance hardware adjustable via external components
- Transmit gains hardware adjustable via external components
- Low power +5.0 V CMOS technology
- +5.0 V single power supply
