c
2004
cosmo
ELECTRONICS CORPORATION
http://www.cosmo-ic.com
1
KPL1280A
Photo Link Connector
Features
TTL interface.
LED is driven by differential circuit.
A Self-tapping hole for easy attachment
to audio Equipment panels.
Applications
Audio equipment.
DVD player.
Automobile.
Outline Dimensions
(Unit:mm)
6.00
8.20
19.5
0
13.50
20.20
4.70
11.
5
0
9.50
1
3 2
1.90
2.30
7.62
0.50
1.60
4.00
2.54
3.80
2.54
9.50
10.00
2.40
Pin Connection
1.GND
2.Vcc
3.Input
Tolerance: 0.2mm
FIBER OPTIC TRANSMITTING MODULE
FOR DIGITAL AUDIO EQUIPMENT
1. Maximum Ratings Ta=25
Parameter Symbol
Rating
Unit
Storage Temperature
T
stg
-40~80
Operating Temperature
T
opr
-20~70
Power Dissipation
P
max
120
mW
Supply Voltage
Vcc
-0.5~7
V
Input Voltage
V
IN
-0.5~Vcc+0.5
V
Soldering Temperature
T
sol
260
Note 1
Note 1 Soldering time
10 seconds At a distance of 1 mm from the package .
2. Recommended Operating Conditions
Parameter
Symbol Min Typ. Max
Unit
Supply Voltage
V
CC
4.75 5.0
5.25
V
High-Level Input Voltage
V
IH
2.0 -
VCC
V
Low-Level Input Voltage
V
IL
0 -
0.8
V
c
2004
cosmo
ELECTRONICS CORPORATION
http://www.cosmo-ic.com
3
KPL1280A
Photo Link Connector
(3).Measuring method of Pulse response
6Mbps NRZ"1010" successive pattern
Input signal
to be measured
Input
Vin
Vcc
GND
Vcc
PHOTOLINK Unit
Standard optical fiber cable
CH2
Output signal
Oscilloscope
CH1
Standard receiver
Input signal (CH1)
Output signal (CH2)
PHL
PLH
50%
50%
Input signal (CH1)
Output signal (CH2)
50%
90%
50%
10%
tf
tr
VOH
VOL
t
t
(4).Measuring method of Jitter
Vin
Vcc
GND
Vcc
put
0
0
1
1
Standard optical fiber cable
CH2
CH1
Oscilloscope
Output signa
Standard receiver
PHOTOLINK Unit
to be measured
tj
tj
Input signal (CH1)
Output signal (CH2)
50%
50%
5.Recommended PCB Layout
2.54
7.62
3.
80
3- 0
.8
2.54
2- 2.8
Notes:
1.Unit:mm
2.tolerance: 0.3mm
c
2004
cosmo
ELECTRONICS CORPORATION
http://www.cosmo-ic.com
2
3. Electrical and Optical Characteristics Ta=25
V
CC
=5V
Parameter
Symbol
Condition Min
Typ.
Max Unit
Data Rate
NRZ Signal
Note 2
DC - 12.8 Mb/s
Transmission Distance
Using APF
Note 3
0.2 - 5 m
Fiber Output Power
Note 4
Pf
-21
-
-15 dBm
Peak Emission Wavelength
p
630 650 690
nm
Current Consumption
Icc
-
-
13
mA
High Level Input Voltage
V
IH
2.0 - - V
Low Level Input Voltage
V
IL
- - 0.8
V
Low->High Propagation delay
time
t
PLH
150
ns
High -> Low Propagation delay
time
t
PHL
150
ns
Pulse Width Distortion
tw
6Mbps NRZ Signal
-25
-
25
ns
Jitter Time
tj
25
ns
Note 2 LED is on when input signal is high, and off when it is low.
The duty factor must be maintained between 25 to 75%.
ote 3 All Plastic Fiber 970 / 1000m .
ote 4 Measure with a standard optical fiber, peak value.
4.
Measuring method
(1).Measuring method of optical output coupling fiber
to be measured
Vin
GND
Vcc
PHOTOLINK Unit
Standard optical fiber cable
Optical Power Meter must be calibrated to
have the wavelength sensitivity of 650nm
| 0 dBm=1mW |
Optical Power Meter
(2).Measuring method of power dissipation current and input voltage
Vin
Vcc
GND
Icc
Vin
Vcc
Standard optical fiber cable
Optical Power Meter must be calibrated to
have the wavelength sensitivity of 650nm
| 0 dBm=1mW |
Optical Power Meter
PHOTOLINK Unit
to be measured
KPL1280A
Photo Link Connector
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