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參數(shù)資料
| 型號： | AK2548 |
| 廠商： | Asahi Kasei Microsystems Co.,Ltd |
| 英文描述： | 7 channel E1 Transceiver |
| 中文描述： | 7頻道E1收發(fā)器 |
| 文件頁數(shù)： | 7/30頁 |
| 文件大?。?/td> | 158K |
| 代理商： | AK2548 |
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ASAHI K ASEI [AK2548]
C0028-E-00 1999/9
7
PIN FUNCTION
Pin Name
I/O
Function
Comment
E1 Transceiver
TTIP1-7
TRING1-7
O
O
Transmit Tip/Ring Output
Bipolar output over transmit transformer
TPOS1-7
TNEG1-7
I
I
Transmit Positive/Negative Data Input
Input on the falling edge of TCLK
TCLK1-7
I
Transmit Clock Input
RTIP1-7
RRING1-7
I
I
Receive Tip/Ring Input
Bipolar Input over receive transformer
RPOS1-7
RNEG1-7
O
O
Receive Positive/Negative Data Output
Output on the falling edge of RCLK
RCLK1-7
O
Receive Clock Output recovered from receive data input
LOS1-7
O
Loss of signal output
Output “high” when detect loss of signal
LOSx output is not masked by MLOSx register.
TVDD1-7
Positive Power Supply for the Transmit Driver
TVSS1-7
Negative Power Supply for the Transmit Driver
AVSS1-8
Common Block
Analog ground .
MCLK
I
2.048/32.768MHz External Reference Clock Input
AS(ALE)
I
Address Select(Address Latch Enable) Input
INT
O
Interrupt Output(PMOS open drain, should be tied to GND through
a resistor), Active High, INT output goes “high” when the alarm is
reported to any one of LOSx, LOTCx or LOMC registers. This pin can
be masked by MLOSx, MLOTCx or MLOMC registers.
DS(RD)
I
Data Strobe(Read Enable) Input
R/W (WR)
I
Read/Write(Write Enable) Input
CS
I
Chip Select Input
BTS
I
Bus Type Select Input
BTS=“H” : Motorola Mode
BTS=“L” : Intel Mode
SCLK
I
Serial Clock Input
SDI
I
Serial Data Input
SDO
O
Serial Data Output
AD0-AD7
I/O
Address/Data Input/Output
Used for read/write internal registers.
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