AT2008 Datasheet, PDF (5/19 Pages) List of Unclassifed Manufacturers – 8 Channels ADPCM Processor

AT2008
8 Channels ADPCM Processor
Power
The AT2008 is powered by a 3.3 V source and draws 100 mA at full operation and < 1 mA in powerdown mode.
Initialization
There are two different classes of resets available on the AT2008 chip. For the default reset, hold the RSTZ pin low for 50 ms. This reset
will bring the chip to a functioning default state. In the default state, the following parameters are set:
1.
Pins FSY, CLKP, CLKA default to input (chip will receive these signals from external source)
2.
4 half channels of 32k µ-law ADPCM decoder running on half channels 0-3
3.
4 half channels of 32k µ -law ADPCM encoder running on half channels 4-7
A second type of reset involving the use of the 3-wire serial interface can also be used direct the pin I/O configurations of FSY, CLKP,
and CLKA during reset.
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©2001 Atelic Systems, Inc.