650 nm Plastic Optical Fiber(POF) Transceiver
OptoLockTM Bare Fiber Connector, 3.3 V
155 Mbps ATM/SONET OC-3/SDH STM-1/Fast Ethernet
Features
OptoLockTM Bare Fiber Connector
Suitable for 1.5mm or 2.2mm POF
Single power supply 3.3 V
Compatible with solder and aqueous wash processes
Logic interface compatible with both LVDS
(Low-Voltage Differential Signaling) and CML
(Current-Mode Logic)
RoHS compliant
Note : OptoLockTM is a registered trade mark of Firecomms Ltd. APAC has
licensed the related patents and usage of trade mark from Firecomms.
Ordering Information
PART NUMBER
INPUT/OUTPUT POF OUTER DIAMETER VOLTAGE
LM11-A3C-PC-N-1
AC/AC
1.5 mm
3.3 V
TRANSMIT DISTANCE
TEMPERATURE
100 m Note 1
−20°C to 70 °C
LM11-A3C-PC-N-2
AC/AC
2.2 mm
3.3 V
100 m
−20°C to 70 °C
Note 1: The specified distance was tested by 100 m of 0.3 NA POF (Mitsubishi Rayon Eska Mega POF). The different
Numeric Aperture of POF might result in different transmit distance.
Note 1
Absolute Maximum Ratings
PARAMETER
SYMBOL
MIN
MAX
UNITS
TS
−40
100
°C
Supply Voltage
Vcc
−0.5
4.5
V
Input Voltage
VIN
−0.5
Vcc
V
TSOLD
---
260
°C
Storage Temperature
Soldering Temperature
Page 1 of 9
Version 1.2
Date: 4/8/2008
NOTE
10 seconds on leads
Headquarters :
12 Shyr Jiann Road, Hsinchu Industrial Park, Hukow,
Hsinchu Hsien,, Taiwan 303
TEL: +886-3-5986799
FAX: +886-3-5986655
Website: www.apacoe.com.tw
650 nm Plastic Optical Fiber(POF) Transceiver
OptoLockTM Bare Fiber Connector, 3.3 V
155 Mbps ATM/SONET OC-3/SDH STM-1/Fast Ethernet
Operating Environment
PARAMETER
SYMBOL
MIN
MAX
UNITS
Ambient Operating Temperature
TAMB
−20
70
°C
Supply Voltage
Vcc
3.0
3.6
V
NOTE
Transmitter Electro-optical Characteristics
(Vcc = 3.0 V to 3.6 V, TA = -20 °C to 70 °C)
PARAMETER
SYMBOL
MIN
TYP.
MAX
UNITS
NOTE
B
10
125
---
Mb/s
Note 1
Pout
−8.5
−5.0
−2.0
dBm
Average
Extinction Ratio
ER
10
---
---
dB
Center Wavelength
λC
640
660
670
nm
Spectral Width (FWHM)
Δλ
---
23
30
nm
Rise/Fall Time (10−90%)
Tr, f
1
1.5
2.5
ns
Power Supply Current
ICC
33
39
55
mA
VIN-BIAS
GND+0.8
1.2
VCC−0.8
V
VIN-SWING
0.1
---
1.2
V
Data Rate
Output Optical Power
Input Common-mode Range
Input Voltage Swing
Note 2
Note 1: Datasheet parameters are quoted for the typical data rate of 100Mbps. The transmitter will operate at symbol rate up
to 125 MBd
Note 2: Not including the terminations.
Page 2 of 9
Version 1.2
Date: 4/8/2008
Headquarters :
12 Shyr Jiann Road, Hsinchu Industrial Park, Hukow,
Hsinchu Hsien,, Taiwan 303
TEL: +886-3-5986799
FAX: +886-3-5986655
Website: www.apacoe.com.tw
650 nm Plastic Optical Fiber(POF) Transceiver
OptoLockTM Bare Fiber Connector, 3.3 V
155 Mbps ATM/SONET OC-3/SDH STM-1/Fast Ethernet
Receiver Electro-optical Characteristics
(Vcc = 3.0 V to 3.6 V, TA = -20 °C to 70 °C)
PARAMETER
SYMBOL
MIN
TYP.
MAX
UNITS
B
50
125
---
Mb/s
Optical Input Power-maximum
PIN
−2
---
---
dBm
Optical Input Power-minimum
(Sensitivity)
PIN
---
---
−23
dBm
Signal Detect-Asserted
PA
---
---
−23
dBm
Average
Signal Detect-Deasserted
PD
−30
---
---
dBm
Average
Signal Detect-Hysteresis
PA − PD
1.0
---
---
dB
Power Supply Current
ICC
33
36
45
mA
Data Output Rise, Fall Time (10−90%)
Tr, f
0.5
0.9
2.8
ns
VOCM
1.125
1.200
1.275
V
VOUT-SWING
0.50
0.54
0.6
V
Data Rate
Offset Common Mode Voltage
Output Differential Voltage Swing
NOTE
Note 1
Note 1: The current exclude the output load current.
Page 3 of 9
Version 1.2
Date: 4/8/2008
Headquarters :
12 Shyr Jiann Road, Hsinchu Industrial Park, Hukow,
Hsinchu Hsien,, Taiwan 303
TEL: +886-3-5986799
FAX: +886-3-5986655
Website: www.apacoe.com.tw
650 nm Plastic Optical Fiber(POF) Transceiver
OptoLockTM Bare Fiber Connector, 3.3 V
155 Mbps ATM/SONET OC-3/SDH STM-1/Fast Ethernet
Block Diagram of Transceiver
ELECTRICAL ASSEMBLY
DATA OUT
DATA OUT/
PREPOST
AMPLIFIER IC
AMPLIFIER
PIN
IC
SIGNAL
DETECT
OPTICAL
SUBASSEMBLIES
DATA IN
DATA IN/
LASER
DRIVER IC
RCLED
Transmitter Section
The transmitter section consists of a High-speed Resonant Cavity LED at red 650 nm with small emission aperture suitable
for POF. The LED is driven by an Integrated CMOS LED driver IC which converts differential input logic signals into an
analog driving current.
Receiver Section
The receiver utilizes an Integrated high sensitivity receiver IC and pin-diode for one-step light-to-digital conversion.
Receiver Signal Detect
Signal Detect is a basic fiber failure indicator. As the input optical power is decreased, Signal Detect will switch from high to
low (deassert point) somewhere between sensitivity and the no light input level. As the input optical power is increased from
very low levels, Signal Detect will switch back from low to high (assert point).
Page 4 of 9
Version 1.2
Date: 4/8/2008
Headquarters :
12 Shyr Jiann Road, Hsinchu Industrial Park, Hukow,
Hsinchu Hsien,, Taiwan 303
TEL: +886-3-5986799
FAX: +886-3-5986655
Website: www.apacoe.com.tw
650 nm Plastic Optical Fiber(POF) Transceiver
OptoLockTM Bare Fiber Connector, 3.3 V
155 Mbps ATM/SONET OC-3/SDH STM-1/Fast Ethernet
Recommended Circuit Schematic
AC/AC Coupling
EMI PIN
1uF
RD100R
RD-
1uF
SD
56K
Vcc
3.3V
GND
10uF
10nF
3.3V
Vcc
10nF
GND
10uF
GND
47nF
TD-
100R
1 RD+
2 RD3 SD
4 RX GND
5 VccR
6 TX GND
7 VccT
8 TX GND
9 TD+
10 TD-
TD47nF
EMI PIN
In order to get proper functionality, a recommended circuit is provided in above recommended circuit schematic.
When designing the circuit interface, there are a few fundamental guidelines to follow.
(1) Power line capacitors should be placed as close to the device as possible.
(2) Receiver RD+/- data AC coupling capacitors should be located as close as possible to the PHY/ASIC or other receiver IC.
The 100R termination resistor should be located as close to the AC coupling resistor as allowed by the PCB layout.
(3) If possible, avoid using via’s for the PCB layout of the differential data lines TX+/- and RX+/-.
Page 5 of 9
Version 1.2
Date: 4/8/2008
Headquarters :
12 Shyr Jiann Road, Hsinchu Industrial Park, Hukow,
Hsinchu Hsien,, Taiwan 303
TEL: +886-3-5986799
FAX: +886-3-5986655
Website: www.apacoe.com.tw
650 nm Plastic Optical Fiber(POF) Transceiver
OptoLockTM Bare Fiber Connector, 3.3 V
155 Mbps ATM/SONET OC-3/SDH STM-1/Fast Ethernet
Recommended Board Layout Hole Pattern
13.80±0.10
12.30±0.10
1.00 Min
Hole of the front panel
2.54 3.31
0.80 EMI GndX2
2 RD3 SD
4 RX GND
5.83
4.58
3.29
2.02
0.75
1 RD+
15.10
5 Vcc R
6 TX GND
7 VccT
9.78
10 TD-
Edge of PCB
9 TD+
5.83
4.58
3.29
2.02
0.75
8 TX GND
0.80X10
Unit : mm(inches)
Page 6 of 9
Version 1.2
Date: 4/8/2008
Headquarters :
12 Shyr Jiann Road, Hsinchu Industrial Park, Hukow,
Hsinchu Hsien,, Taiwan 303
TEL: +886-3-5986799
FAX: +886-3-5986655
Website: www.apacoe.com.tw
650 nm Plastic Optical Fiber(POF) Transceiver
OptoLockTM Bare Fiber Connector, 3.3 V
155 Mbps ATM/SONET OC-3/SDH STM-1/Fast Ethernet
This transceiver is compatible with industry standard wave or hand solder processes. After wash process, all moisture
must be completely removed from the module. The transceiver is supplied with a process plug to prevent contamination
during wave solder and aqueous rinse as well as during handling, shipping or storage.
Solder fluxes should be water-soluble, organic solder fluxes. Recommended cleaning and degreasing chemicals for
these transceivers are alcohol’s (methyl, isopropyl, isobutyl), aliphatics (hexane, heptane) and other chemicals, such as soap
solution or naphtha. Do not use partially halogenated hydrocarbons for cleaning/degreasing.
PIN Assignment
PIN SYMBOL
1
RD+
2
RD−
3
SD
4
RX GND
5
VCCR
6
TX GND
7
VCCT
8
TX GND
9
TD+
10
TD−
EMI PIN
Page 7 of 9
Version 1.2
Date: 4/8/2008
DESCRIPTION
RD+ is an open-emitter output circuit.
Terminate this high-speed differential input with both LVDS and CML signal at the follow-on device
input pin. (See recommended circuit schematic)
RD– is an open-emitter output circuit.
Terminate this high-speed differential input with both LVDS and CML signal at the follow-on device
input pin. (See recommended circuit schematic)
Signal Detect..
Receiver Signal Ground.
Directly connect this pin to the receiver ground plane.
Receiver Power Supply.
Provide +3.3 Vdc via the recommended receiver power supply filter circuit. Locate the power supply
filter circuit as close as possible to the VCCR pin.
Transmitter Signal Ground.
Directly connect this pin to the receiver ground plane.
Transmitter Power Supply.
Provide +3.3 Vdc via the recommended transmitter power supply filter circuit. Locate the power supply
filter circuit as close as possible to the VCCT pin.
Transmitter Signal Ground.
Directly connect this pin to the transmitter signal ground plane. Directly connect this pin to the
transmitter ground plane.
Transmitter Data In.
Terminate this high-speed differential input with both LVDS and CML signal at the transmitter input
pin. (See recommended circuit schematic)
Transmitter Data In-Bar.
Terminate this high-speed differential input with both LVDS and CML signal at the transmitter input
pin. (See recommended circuit schematic)
EMI Shielding Pin
Connect two EMI shielding pins to Ground for better EMI performance.
Headquarters :
12 Shyr Jiann Road, Hsinchu Industrial Park, Hukow,
Hsinchu Hsien,, Taiwan 303
TEL: +886-3-5986799
FAX: +886-3-5986655
Website: www.apacoe.com.tw
650 nm Plastic Optical Fiber(POF) Transceiver
OptoLockTM Bare Fiber Connector, 3.3 V
155 Mbps ATM/SONET OC-3/SDH STM-1/Fast Ethernet
Drawing Dimensions
9.50
13.50
5.00
15.50
15.80
11.80
5.00
9.40
11.30
Closed
Open
3.31 0.05(6X)
5.85 0.05(4X)
0.90
T
R
1.72±0.05
2.99±0.05
4.26±0.05
5.53±0.05
6.80±0.05
8.30±0.05
1.72±0.05
2.99±0.05
4.26±0.05
5.53±0.05
6.80±0.05
15.10±0.1
ALL DIMENSIONS ARE +0.2/-0.2 mm UNLESS OTHERWISE SPECIFIED
Unit : mm
Page 8 of 9
Version 1.2
Date: 4/8/2008
Headquarters :
12 Shyr Jiann Road, Hsinchu Industrial Park, Hukow,
Hsinchu Hsien,, Taiwan 303
TEL: +886-3-5986799
FAX: +886-3-5986655
Website: www.apacoe.com.tw
650 nm Plastic Optical Fiber(POF) Transceiver
OptoLockTM Bare Fiber Connector, 3.3 V
155 Mbps ATM/SONET OC-3/SDH STM-1/Fast Ethernet
POF cable handling for OptoLockTM connector
To terminate the POF cable into OptoLockTM, the end of the cable is cut cleanly, and the two strands are separated. One
strand is inserted into each of two holes in the termination housing, which is then pressed closed to hold the POF in place.
These steps are shown here.
Step 1 Slice the POF cable
Step 3 Input POF into OptoLockTM
Step 2 Split the POF strand
Step 4 Press OptoLock to hold POF into Place
Note : All information contained in this document is subject to change without notice.
Page 9 of 9
Version 1.2
Date: 4/8/2008
Headquarters :
12 Shyr Jiann Road, Hsinchu Industrial Park, Hukow,
Hsinchu Hsien,, Taiwan 303
TEL: +886-3-5986799
FAX: +886-3-5986655
Website: www.apacoe.com.tw