ml50000 Oki Semiconductor, ml50000 Datasheet - Page 5

• Manufacturer Part Number: ml50000
• Description: Echo Canceler
• Manufacturer: Oki Semiconductor

¡ Semiconductor
PIN DESCRIPTIONS
28-pin
SSOP
—
1
2
3
Pin
56-pin
QFP
1
2
3
4
Symbol
ADP
NLP
HCL
MS
(1/5)
Type
I
I
I
I
Control pin for the center clipping function.
This pin forces the SOUT output to a minimum value when the SOUT
signal is below –36 dBm0. Effective for reducing low-level noise.
This input signal is loaded in synchronization with the falling edge of the
INT signal or the rising edge of the RST signal.
Through mode control.
When this pin is in the through mode,
RIN and SIN data is output to ROUT and SOUT. At the same time, the
coefficient of the adaptive FIR filter is cleared.
This input signal is loaded in synchronization with the falling edge of the
INT signal or the rising edge of the RST signal.
AFF coefficient control.
This pin stops updating of the adaptive FIR filter (AFF) coefficient and sets
the coefficient to a fixed value, when this pin is configured to be the
coefficient fix mode.
This pin is used when holding the AFF coefficient which has been once
converged.
This input signal is loaded in synchronization with the falling edge of the
INT signal or the rising edge of the RST signal.
Select signal.
This pin selects between the master chip and slave chip when
used in a cascade connection.
• Single Chip or Master Chip in a Cascade Connection
• Slave Chip in a Cascade Connection
• Single Chip or Master Chip in a Cascade Connection
• Slave Chip in a Cascade Connection
• Single Chip or Master Chip in a Cascade Connection
• Slave Chip in a Cascade Connection
"H": Center clip ON
"L": Center clip OFF
Fixed at "L"
"H": Through mode
"L": Normal mode (echo canceler operates)
Same as master
"H": Coefficient fix mode
"L": Normal mode (coefficient update)
Fixed at "L"
"L": Single chip or master chip
"H": Slave chip
Description
ML50000
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