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MSM7617 Datasheet(PDF) 3 Page - OKI electronic componets

Part # MSM7617
Description  2-Channel Echo Canceler
PDF  29 Pages
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Manufacturer  OKI [OKI electronic componets]
Direct Link  http://www.oki.com
Logo OKI - OKI electronic componets

MSM7617 Datasheet(HTML) 3 Page - OKI electronic componets

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¡ Semiconductor
MSM7617
BLOCK DIAGRAM
S/P
–6LR
+6LR
P/S
Non-linear/
Linear
Linear/
Non-linear
Adaptive
FIR Filter
(AFF)
P/S
S/P
Linear/
Non-linear
Non-linear/
Linear
SG
Center
Clip
+6LR
ATT
Howling
Detector
Double Talk
Detector
Power
Calculator
+
–6LR
ROUT1
SA
2100 Hz Tone,
Phase Reverse
Detector
RIN1
DF1
WDT1
SIN1
SOUT1
ATT
GC
S/P
–6LR
+6LR
P/S
Non-linear/
Linear
Linear/
Non-linear
Adaptive
FIR Filter
(AFF)
P/S
S/P
Linear/
Non-linear
Non-linear/
Linear
SG
Center
Clip
+6LR
ATT
Howling
Detector
Double Talk
Detector
Power
Calculator
+
–6LR
ROUT2
SA
2100 Hz Tone,
Phase Reverse
Detector
RIN2
DF2
WDT2
SIN2
SOUT2
ATT
GC
CH1
CH2
–
–
+
+
VDD
SYNCO
VSS
SCKO
Clock Generator
VDD (PLL)
VSS (PLL)
PLL
EC-A Controller
EC-B Controller
I/O Controller
The above diagram shows internal connections for 2-channel parallel mode. The internal
connections for 2-channel serial I/O mode and 1-channel cross-connected mode are shown
below.
CH1
ROUT1
RIN1
SIN1
SOUT1
RIN
ROUT
SOUT
SIN
+
AFF
CH2
ROUT2
RIN2
SIN2
SOUT2
RIN
ROUT
SOUT
SIN
+
AFF
2-channel parallel I/O mode
CH1
RIN1
SIN1
SOUT1
RIN
ROUT
SOUT
SIN
+
AFF
CH2
RIN
ROUT
SOUT
SIN
+
AFF
2-channel serial I/O mode
CH1
ROUT1
SIN1
RIN
ROUT
SOUT
SIN
+
AFF
CH2
ROUT2
SIN2
RIN
ROUT
SOUT
SIN
+
AFF
1-channel cross-connected mode
ROUT1



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