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參數(shù)資料
| 型號(hào)： | ML50000 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Echo Canceler(回聲消除器) |
| 中文描述： | 回聲消除器（回聲消除器） |
| 文件頁數(shù)： | 5/26頁 |
| 文件大小： | 287K |
| 代理商： | ML50000 |
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Semiconductor
ML50000
5/26
PIN DESCRIPTIONS
(1/5)
Pin
28-pin
SSOP
1
56-pin
QFP
1
Symbol
Type
Description
NLP
I
2
2
HCL
I
3
3
ADP
I
—
4
MS
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.
Single Chip or Master Chip in a Cascade Connection
"H": Center clip ON
"L": Center clip OFF
Slave Chip in a Cascade Connection
Fixed at "L"
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.
Single Chip or Master Chip in a Cascade Connection
"H": Through mode
"L": Normal mode (echo canceler operates)
Slave Chip in a Cascade Connection
Same as master
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.
Single Chip or Master Chip in a Cascade Connection
"H": Coefficient fix mode
"L": Normal mode (coefficient update)
Slave Chip in a Cascade Connection
Fixed at "L"
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.
"L": Single chip or master chip
"H": Slave chip
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