msm7620 Oki Semiconductor, msm7620 Datasheet - Page 18

• Manufacturer Part Number: msm7620
• Description: Echo Canceler
• Manufacturer: Oki Semiconductor

¡ Semiconductor
MSM7620
Example 4: Canceling of both acoustic echo and line echo
(to handle both acoustic echo from line input and line echo from microphone input)
CODEC
MSM7620
MSM7620
CODEC
Line input
ROUT
RIN
SOUT
SIN
+
+
AFF
–
H
m-law
m-law
Acoustic echo
–
AFF
SIN
SOUT
RIN
ROUT
+
+
Line echo
For acoustic echo
For line echo
Microphone input
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