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參數(shù)資料
| 型號： | ML7012-04 |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | 2400 bps Single Chip Full Duplex Data Modem with Protocol(2400 bps單片、全雙工、V.22bis,V.22,V.21.Modern) |
| 中文描述： | 2400 bps的單芯片全雙工數(shù)據(jù)調(diào)制解調(diào)器的協(xié)議（2400 bps的單片，全雙工，V.22bis，.22，V.21.Modern） |
| 文件頁數(shù)： | 5/22頁 |
| 文件大?。?/td> | 124K |
| 代理商： | ML7012-04 |
FEDL 7012-04-01
1
Semiconductor
ML7012-04
5/22
Analog Interface
Symbol
I/O
Description
AOUT
O
Transmit analog output pin
When
PDN
/
RST
=
“
0
”
, AOUT is in a high impedance state.
Operational amplifier input pin constituting transmit RC active
Operational amplifier output pin constituting transmit RC active
When
PDN
/
RST
=
“
0
”
, RCAO is in a high impedance state.
Input pin of the line transformer drive amplifier
Output pin of the line transformer drive amplifier (1)
When
PDN
/
RS
T =
“
0
”
, TXAN is in a high impedance state.
Output pin of the line transformer drive amplifier (2)
When
PDN
/
RST
=
“
0
”
, TXAP is in a high impedance state.
Input pin of the receive input amplifier
Output pin of the receive input amplifier
When
PDN
/
RST
=
“
0
”
, GSR is in a high impedance state.
Pin to connect capacitors for the SG circuit
When
PDN
/
RST
=
“
0
”
, SG is in a high impedance state.
RCI
I
RCAO
O
TXAI
I
TXAN
O
TXAP
O
AIN
I
GSR
O
SG
O
PSTN Line Control Interface
Symbol
I/O
Description
RLY1
O
Off-hook and pulse dial control signal output pin (*1)
0: On-hook or break state of pulse dial
1: Off-hook or make state of pulse dial
When
PDN
/
RST
=
“
0
”
, RLY1 outputs “0”.
The control signal output pin to disconnect interlinked telephones (*1)
0: PSTN is connected with interlinked telephones
1: PSTN is disconnected with interlinked telephones but connected with modem
When
PDN
/
RST
=
“
0
”
, RLY2 outputs “0”.
Incoming signal input pin (*2)
Input
“
0
”
while detecting an incoming signal
Input
“
1
”
while not detecting an incoming signal
Fix this pin to "1" when a ring detector is not used.
Speaker control signal output pin
0: speaker On
1: speaker Off
When
PDN
/
RST
=
“
0
”
, SPK outputs
“
1
”
.
RLY2
O
RII
I
SPK
O
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