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參數(shù)資料
| 型號： | MF-622DS-R13-242 |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SONET/SDH TRANSMITTER & RECEIVER |
| 中文描述： | SONET / SDH的變送器 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 62K |
| 代理商： | MF-622DS-R13-242 |
MITSUBISHI (OPTICAL DEVICES)
MF-622DS-T12-43x/45x/46x
MF-622DS-R13-24x
SONET/SDH TRANSMITTER & RECEIVER
TRANSMITTER PIN ALLOCATION
No.
1
2
3
4
5
6
7
8
9
10
Symbol
NC
Lbs(+)
NC
Lbs(-)
GND
Vcc
Td
Vcc
Vcc
NC
Description
No user connection
Laser-bias monitor(+)
No user connection
Laser-bias monitor(-)
Ground
Vcc
Transmitter disable
Vcc
Vcc
No user connection
No.
20
19
18
17
16
15
14
13
12
11
Symbol
NC
Lbf(+)
Vcc
Lbf(-)
Data
Data
GND
GND
Vcc
GND
Description
No user connection
Laser-backface monitor(+)
Vcc
Laser-backface monitor(-)
Data
Data
Ground
Ground
Vcc
Ground
PIN DESCRIPTIONS
Pin No.
5,11,
13,14
6,8,9,
12,18
Function
GND
I/O
I
Pin description
These pin are the module’s ground connections.
They should be connected to a low impedance ground plane (0V).
This is the power supply pin for the module.
It should be connected to +5.0V.
Recommended power supply decoupling.
This data input pin modulates the laser diode. When the Data input is asserted, the
laser diode is turned on.
Signal level of these pin are PECL level and internal Vbb bias. Refer to electrical
interface in NOTE1.
The transmitter is nomally enabled and only requires an external voltage to disable.
Refer to electrical interface in NOTE2.
The laser bias current is calculated as a ratio of the voltage to an internal 10-ohm
sensing resistor.
Ib[mA]={Lbs(+)-Lbs(-)}[mV]/10
Refer to electrical interface in NOTE3.
The laser backface monitor is calculated as a ratio of the voltage to an internal 200-
ohm sensing resistor.
Ibf[mA]={Lbf(+)-Lbf(-)}[mV]/200
Refer to electrical interface in NOTE3.
These pin are No user connection and should be left open.
Vcc
I
15,16
Data & Data
I
7
Transmitter disable
I
2,4
Laser-bias
monitor(+),
Laser-bias monitor(-)
O
17,19
Laser-backface
monitor(+),
Laser-backface
monitor(-)
NC
O
1,3,
10,20
-
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