AT2004 Datasheet, PDF (15/25 Pages) List of Unclassifed Manufacturers – 4 Channels ADPCM Processor with Echo Cancellation and Conferencing

AT2004
4 Channels ADPCM Processor with Echo Cancellation and Conferencing
Using the AT2004 with other combo chips
DX
DR
Combo 0
AT2004
XIN(16)
FSY(25)
SYNC.1(18)
YOUT(24)
CLKP(17)
Combo 1
Combo 2
Combo 3
SYNC2(15)
SYNC3(11)
SYNC4(10)
(20)XOUT
(27)YIN
CLKA
TM1
TM0
SDI SCLK SCSZ
Note:
SDI, SCLK, SCSZ are for 3-wire commands and should be connected to microcontroller I/O pins.
CLKA and FSY.
Typical application of default setting uses National single channel Combo (Quad Combo can be used to replace
the 4 single Combo)
When there are multiple AT2004 used on the same systems, A1, A0 are used to identify the chip.
A1, A0 are for chip ID. Values are from 00-03. They should be connected to microcontroller I/O lines or wired to either
VCC or ground.
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©2001 Atelic System, Inc