MF-156DF-T12-20X Datasheet, PDF (6/9 Pages) Mitsubishi Electric Semiconductor – SONET/SDH TRANSMITTER & RECIEVER

MITSUBISHI (OPTICAL DEVICES)
MF-156DF-T12-20x/29x/23x
MF-156DS-R13-17x
SONET/SDH TRANSMITTER & RECIEVER
RECEIVER PIN ALLOCATION
No. Symbol
1
GND
2
GND
3
GND
4
CLK
5
CLK
6
GND
7
Data
8
GND
9
Data
10 PDB
Description
Ground
Ground
Ground
Clock
Clock
Ground
Data
Ground
Data
Photo Detector Bias
No. Symbol
20 NC
19 NC
18 NC
17 NC
16 GND
15 GND
14 SD
13 GND
12 SD
11 Vcc
Description
No user connection
No user connection
No user connection
No user connection
Ground
Ground
Signal Detect
Ground
Signal Detect
Vcc
RECEIVER PIN DESCRIPTIONS
Pin No.
1,2,3,
6,8,13,
15,16
11
7,9
4,5
12,14
10
17,18,
19,20
Function
I/O
GND
I
Vcc
I
Data & Data
O
Clock & Clock
O
Signal Detect
O
&
Signal Detect
Photo Detector Bias I
NC
-
Pin description
These pin are the module’s ground connections.
They should be connected to a low inpedance ground plane(0V).
This is the power supply pin for the module.
It should be connected to +5.0V.
Recommended power supply decoupling.
There are Data output pin(Differential PECL output).
Signal level of these pin are PECL level.
Refer to electrical interface in NOTE4.
There are recoverd clock output pin(Differential PECL output).
Signal level of these pin are PECL level.
Refer to electrical interface in NOTE4.
When the optical input signal fall bellow the SD threshold level, The
Signal Detect is deasserted and its output logic level changes form a
PECL HIGH to PECL LOW.
Signal Detect pin is differential PECL output pin.
Refer to electrical interface in NOTE5.
This pin supplies the bias for the PIN Photo Detector and it should be
connected to +5.0V.
Additionally,by using External Resistor in series with this pin, it is possible
to measure the photocurrent.
Refer to electrical interface in NOTE8.
These pin are No user connection and should be left open.