ML7202-001 Datasheet, PDF (60/65 Pages) List of Unclassifed Manufacturers – 2-Channel Echo Canceler with Multifunction ADPCM Transcoder

FEDL7202-001-01
ML7202-001
DATA COMMUNICATION
Set the following parameters for data communication.
1.
4-bit (32 kbps) data communication
DTHR1 (CR2-B5) = “1”
:Channel 1
DTHR2 (CR3-B5) = “1”
:Channel 2
2.
8-bit (64 kbps) data communication
CONTA1 (CR2-B7) = “1”, LTHR1 (CR27-B7) = “1”
CONTA2 (CR3-B7) = “1”, LTHR2 (CR28-B7) = “1”
:Channel 1
:Channel 2
Notes:
1.
2.
3.
At the start and switching of data/voice communication, a data loss/data errors of several SYNC cycles
occur.
In data through of LTHR1/2 only, PCM data “–0” is changed to “+0” when it is output.
DTHR1 = “1”, DTHR2 = “1”, CONTA1 = “1”+LTHR1 = “1”, and CONTA2 = “1”+LTHR2 = “1” are set,
the line echo canceler, tone generator, tone detection, VOX function, and MUTE function are disabled.
Table 29 Full scale table (-law, A-law)
Input level
+ Full scale
+0
–0
– Full scale
-law
A-law
MSB
MSB
1000000010101010
1111111111010101
0111111101010101
0000000000101010
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