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參數(shù)資料
| 型號： | 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)： | 7/26頁 |
| 文件大?。?/td> | 287K |
| 代理商： | ML50000 |
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Semiconductor
ML50000
7/26
(3/5)
Pin
28-pin
SSOP
11
56-pin
QFP
11
Symbol
Type
Description
—
PD5
PD6
—
SYNC
I
12
12
SOUT
O
13
13
ROUT
O
—
—
—
—
—
—
—
—
15
—
20
22
—
27
29
30
44
45
PD0
PD11
PD12
PD13
PD14
PD15
I/O
17
31
X1/CLKIN
I
18
32
X2
O
16
28
HD
I
Sync signal for transmit/receive serial data.
This pin uses the external SYNC or SYNCO.
Input the PCM CODEC transmit/receive sync signal (8 kHz).
Transmit serial data.
Outputs the PCM signal synchronized to SYNC and SCK.
This pin is in a high impedance state during no data output.
Receive serial data.
Outputs the PCM signal synchronized to SYNC and SCK.
This pin is in a high impedance state during no data output.
This is the bidirectional bus pin for parallel data transfer between the
master chip and slave chip when used in a cascade connection.
The PD15 pin corresponds to MSB.
This pin is in a high impedance state during no data
output. Data is loaded in at the falling edge of
SFx
.
Controls the howling detect function.
This pin detets and cancels a howling
generated during hand-free talking for acoustic system.
This function is used to cancel acoustic echoes.
Single Chip or Master Chip in a Cascade Connection
"L": Howling detector ON
"H": Howling detector OFF
Slave Chip in a Cascade Connection
Fixed at "L"
External input for the basic clock (17.5 to 20 MHz) or for the crystal
oscillator.
When the internal sync signal (SYNCO, SCKO) is used, input the basic
clock of 19.2 MHz.
Crystal oscillator output.
Used to configure the oscilation circuit.
Refer to the internal clock generator circuit example.
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