FB01GKAR
1 Gbps Fiber Optic
OptoLock® Transceiver
Datasheet
FB01GKAR Revision Orig
1
DESCRIPTION
Firecomms’ plugless OptoLock® transceiver in
combination with the KDPOF KD1053 PHY IC enables
Gigabit point-to-point links using multilevel encoding
over standard Plastic Optical Fiber (POF). This
combined solution supports both standard IEEE 802.3
Ethernet over POF at 100 Mbps and multi-level
encoded Gigabit Ethernet at 1 Gbps over POF as
outlined in IEEE 802.3-bv.
This OptoLock® offers a small form factor transceiver
containing an integrated transmitter and receiver pair
of opto‐electronic components which are lensed for
direct termination to POF. This port for bare fiber
significantly simplifies the optical connection, (no plug
required) thus reducing installation and maintenance
time for consumer applications.
OptoLock® is protected by U.S. patents 7,597,485 and
7,905,665, Chinese patents 101501545 A and
102135650 B and other international patents.
AVAILABLE OPTIONS
Table 1
ORDERING INFORMATION / PART NUMBER
GigE OptoLock® Transceiver for 2.2
mm jacketed POF, Black
FB01GKAR
FEATURES
• Simple low-cost termination solution for
2.2 mm jacketed POF cables without a plug
• Fully compatible with KD1053 PHY IC in both
1 Gbps and 100 Mbps modes
• Eye Safe and visible red light-based Resonant
Cavity LED (RCLED) at 650 nm with small emission
aperture and integrated POF driver IC for RCLED
• Receiver IC with integrated PIN diodes for robust
EMI/EMC performance
• Integrated optics for efficient coupling to
0.5 NA POF
• -20 °C to +60 °C operating range
• RoHS compliant
APPLICATIONS
Table 2
APPLICATIONS
Application
Home or Office data communications
Distance
40 meters over Step Index POF at 1 Gbps
[1]
100 meters over Step Index POF at 100 Mbps
[1]
Speed
100 Mbps Ethernet per IEEE 802.3
1 Gbps Gigabit Ethernet per IEEE 802.3-bv
Note: 1. Maximum link lengths will vary with installation conditions and
operating data rate.
FB01GKAR Revision Orig
2
SPECIFICATIONS
FIGURE
1
Transceiver pin-out, top view
1. N.B. EMI Shield ground pins must be connected to the signal ground plane
on the PCB. This is important to shield the FOT from external EMI and ESD
ELECTRICAL INTERFACE
1
12
IC
Tx
IC
Rx
2
3
4
5
6
7
8
9
10
11
RD -
RD +
RSSI
Vcc
TD -
TD +
KD1053
KDPOF
PHY IC
10 F
1 F
100
600  
Vcc
16 pF
10 F
1 F
600  
OFE_TX_P
OFE_TX_N
OFE_IMON
OFE_RX_P
OFE_RX_N
GND
GND
GND
FIGURE
2
General application circuit schematic to connect Firecomms transceiver to KD1053 PHY IC.
Notes:
1. The transmitter and receiver are shielded from each other to prevent crosstalk. To be effective, the shield must be grounded.
2. GND pins 2 and 3 of the Tx FOT must be connected to a full ground plane for heat sinking from the transceiver for best possible operating
life duration.
3. Power line capacitors should be located as close as possible to the FOT’s DC power PINs. The power supply Vcc must be isolated by means
of a ferrite bead (600 Ω @ 100 MHz, DCR < 200 mΩ), in order to avoid spurious noise degrading the signal.
4. The data lines are impedance-matched differential pairs. The printed circuit board (PCB) layout for these tracks must comply with IEEE
standards for high-speed data and impedance matching.
Table 3
TRANSCEIVER PIN DESCRIPTION
Pin
Name
Symbol
TRANSMITTER
1
EMI SHIELD
[1]
GND
2
GROUND PIN
GND
3
GROUND PIN
GND
4
SIGNAL INPUT (POSITIVE)
TD+
5
SIGNAL INPUT (NEGATIVE)
TD-
6
DC POWER INPUT PIN 3.3 V
Vcc
RECEIVER
7
DC POWER INPUT PIN 3.3 V
Vcc
8
GROUND PIN
GND
9
RECEIVED SIGNAL STRENGTH
INDICATOR
RSSI
10
DATA OUTPUT (POSITIVE)
RD+
11
DATA OUTPUT (NEGATIVE)
RD-
12
EMI SHIELD
[1]
GND