MF-622DF-T12-430 查看數據表（PDF） - MITSUBISHI ELECTRIC
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MF-622DF-T12-430 Datasheet PDF : 10 Pages
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TRANSMITTER PIN ALLOCATION
No. Symbol
1
NC
2
Lbs(+)
3
NC
4
Lbs(-)
5
GND
6
Vcc
7
Td
8
Vcc
9
Vcc
10 NC
Description
No user connection
Laser-bias monitor(+)
No user connection
Laser-bias monitor(-)
Ground
Vcc
Transmitter disable
Vcc
Vcc
No user connection
MITSUBISHI (OPTICAL DEVICES)
MF-622DS-T12-43x/45x/46x
MF-622DS-R13-24x
SONET/SDH TRANSMITTER & RECEIVER
No. Symbol
20 NC
19 Lbf(+)
18 Vcc
17 Lbf(-)
16 Data
15 Data
14 GND
13 GND
12 Vcc
11 GND
Description
No user connection
Laser-backface monitor(+)
Vcc
Laser-backface monitor(-)
Data
Data
Ground
Ground
Vcc
Ground
PIN DESCRIPTIONS
Pin No.
Function
I/O
5,11,
GND
I
13,14
6,8,9,
Vcc
I
12,18
15,16
Data & Data
I
7
2,4
17,19
1,3,
10,20
Transmitter disable I
Laser-bias
O
monitor(+),
Laser-bias monitor(-)
Laser-backface
O
monitor(+),
Laser-backface
monitor(-)
NC
-
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.
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