FDL300K-120 [ETC]
Fiber Optic Transceiver Solution for Seamless Digital to Light/ Light to Digital Conversion; 光纤收发器解决方案无缝的数字，以光/光学数位转换
| 型号： | FDL300K-120 |
| 厂家： | 
ETC |
| 描述： | Fiber Optic Transceiver Solution for Seamless Digital to Light/ Light to Digital Conversion |
| 文件： | 总15页 (文件大小：743K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
IEEE 1394b S200
Transceiver Pair
FDL300E/FDL300D
PRELIMINARY PRODUCT SPECIFICATION
650 nm 250 Mbps
Fiber Optic Transceiver Solution
for Seamless Digital to Light/
Light to Digital Conversion
DESCRIPTION
FEATURES
Firecomms RCLED-based 650 nm fiber optic
transceiver (FOT) solution provides a seamless digital
media to red light conversion, and subsequent
recovery for performance at maximum speed in POF
applications such as IEEE 1394b S200. The FOTs
operate at LVDS signal levels directly compatible with
IEEE 1394b PHY ICs.
• Meets the IEEE 1394b S200 (250 Mbps) specification
• Integrated CMOS driver IC
• Resonant Cavity LED at red 650 nm with small emission
aperture suitable for Plastic Optical Fiber (POF)
• Resonant Cavity LED reliability tested to over 400,000
hours lifetime
• Configured for IEEE 1394b with LVDS I/O
• High sensitivity receiver IC and pin-diode for one-step
light to digital conversion
The FOT solution pairs Firecomms RCLED (Resonant
Cavity Light Emitting Diode) technology with an
encapsulated driver IC for coupling digital media
signals to light in a POF link. At the receive side, the
solution provides a 250 Mbps capacity light receiver
in an integrated package that recovers digital media
compatible signals (IEEE 1394 LVDS). The integration
of the emitter Tx FOT with its driver IC and a pin-diode
Rx FOT with a receiver IC in a POF link provides for a
high-integrity digital data link over a range of up to
50m at 250 Mbps (S200), depending on installation
conditions.
• Compatible with SMI connector form factor
• Integrated optics to efficiently focus and direct light
• Ultra-low power consumption
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 2
APPLICATIONS
Standard
[1]
Application
Distance
Speed
Home/Office Network
IEEE 1394b S100
100 meters
125 Mbps
Home/Office Network, High Speed
IEEE 1394b S200
50 meters
250 Mbps
ABSOLUTE MAXIMUM RATINGS[1]
[1]
Parameter
Symbol
Minimum
Maximum
Unit
Storage Temperature
Tstg
-40
+100
ºC
Operating Temperature
Soldering Temperature[2]
Supply Voltage
Top
-20
+70
+260
+4.5
ºC
ºC
V
VCC
-0.5
Notes:
1. These are absolute maximum ratings at or beyond which the FOT can be expected to be damaged.
2. 260ºC, 5s 3 times, at least 2.2 mm away from lead root.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 3
TRANSMITTER ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Baud Rate
VCC
Minimum
Typical
Maximum
Unit
MBd
V
Baud Rate for IEEE 1394b S200
Supply Voltage
250
3.6
55
5
3.0
3.3
Current Consumption
Data Input Capacitance
ICC
mA
pF
CIN
Data Input Resistance
(Single-ended)
Input Common-Mode Range
RIN
5
kΩ
V
VIN-BIAS
VIN-SWING
VIN-WAKE
VIN-SLEEP
TPD
GND+0.8
100
VDD-0.8
1200
100
95
Input Voltage Swing
mV
mV
mV
µs
Input Guaranteed
Wake Voltage
Input Guaranteed
Sleep Voltage
50
25
Optical Power OFF Delay
0.02
20
Optical Power ON Delay
TPU
5
µs
Current Consumption in
Sleep Mode
ICC-sleep
20
uA
TRANSMITTER PIN DESCRIPTION
Pin
Name
Symbol
1
Data Input (Negative)
TD-
2
3
4
5
Data Input (Positive)
TD+
GND
VCC
Ground Pin
Input DC Power Pin
Input, -3dB Power Down (Forces output power to drop by 3dB)
Rex
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 4
TRANSMITTER SPECIAL FUNCTIONS
Function
Description
Rex
The function of the Rex pin is to allow the user to adjust the optical power of the FOT by changing the drive
current of the RCLED. The pin has three settings:
(1) Rex is pulled to ground (set to low). This is the default position and in this case the part is set to the
internal default drive current of the FOT. This is the recommended setting for normal operation.
(2) The Rex pin is pulled high (set to rail voltage 3.3V). The power of the FOT is reduced by 3 dBm. This
function can be used by a system designer to perform an end of life test.
(3) The drive current of the device can be externally set and varied at will by placing a 15k Ohm variable
resistor between Rex and ground. It is not recommended to use this for standard operation, especially in
applications that are sensitive to current consumption as the external variable resistor can cause higher
than normal current consumption.
Sleep-State
If the FOT does not see data on its differential pins for more than 5 us, the FOT is switched into a sleep state
where the optical output is switched off and the current consumption is reduced to a maximum of 20uA. For a
full description, refer to the section Power Management Functions.
TRANSMITTER OPTICAL CHARACTERISTICS
Parameter
Symbol
Minimum
Typical
Maximum
Unit
Peak Wavelength (TA=-20 to 70ºC)
λpeak
640
660
670
nm
Spectral Bandwidth (FWHM)
∆λ
P
23
30
-2.0
2.0
3.0
nm
dBm
ns
Average Output Power Coupled
into Plastic Fiber at TA=-20 to 70ºC
-8.5
10
Optical Rise Time, S200 (20%-80%)
Optical Fall Time (80%-20%)
Extinction Ratio
tr
1.5
2.0
tf
ns
RE
S200
dB
ns
Maximum Systematic Jitter,
Light Output at TP2[1]
0.855
0.855
Maximum Random Jitter,
Light Output at TP2[1]
S200
ns
Note:
1. TP2, test point 2, is the standard test point representing a point in an optical link located 50cm into the fiber from the transmitter
side. This is a standard point of reference quoted in the IEEE 1394b and IDB-1394 standards.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 5
RECEIVER ELECTRICAL CHARACTERISTICS
Parameter
Minimum
Typical
Maximum
Unit
Vcc
3.0
3.3
3.6
V
Icc (Normal Operation)
45
20
mA
uA
Icc - Sleep State
Output Impedence Between D and D
Offset Voltage for LVDS
100
1.2
Ω
V
Differential Output Voltage (LVDS)
SD (Signal Detect) On Output Voltage
SD (Signal Detect) Off Output Voltage
SD (Signal Detect) Assert Level
SD (Signal Detect) Deassert Level
SD (Signal Detect) Assert Time
SD (Signal Detect) Deassert Time
High Level Output Voltage
300
2.4
0
400
mV
V
0.4
-24
V
-28
-32
0.6
0.6
-27
-29
5
dBm
dBm
us
-24.5
100
5
100
us
1.475
V
Low Level Output Voltage
0.925
V
Maximum Systematic Jitter,
1200
700
ps p-p
ps p-p
Electrical Output at TP4 (S200)[1]
Maximum Random Jitter,
Electrical Output at TP4 (S200)[1]
Note:
1. TP4, test point 4, is the electical interface of the receiver which corresponds to the standard as set in IEEE 1394b and IDB-1394 standards.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 6
RECEIVER PIN DESCRIPTION
Pin
Name
Symbol
1
Input DC Power Pin
VCC
GND
SD
2
3
4
5
Ground Pin
Output Signal Detect
Data Input (Negative)
Data Input (Positive)
RD-
RD+
RECEIVER SPECIAL FUNCTIONS
Function
Description
Sleep Function
for Power Saving
Applications
If the Rx FOT does not see optical data on its PD (photo detector) for more than 5 us, the FOT is
switched into a sleep state where the main IC is switched off and the current consumption is
reduced to a maximum of 20uA. At this point there is no electrical output from the device. For a full
description of this function refer to the section Power Management Functions.
SD
This is an LVCMOS-type signal with output high of 2.4V and output low of 0.4V.
(Signal Detect)
RECEIVER OPTICAL CHARACTERISTICS
Parameter
Symbol
Minimum
Typical
Maximum
Unit
Receivable Power
-24
-2
dBm
Rise/Fall Time (10%-90%)
2
ns
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 7
GENERAL TEST APPLICATION CIRCUIT
Figure 1. General application circuit.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 8
IEEE 1394 APPLICATION CIRCUIT
Figure 2 illustrates the correct configuration for the interface between the Texas Instruments 1394b PHY (part number
TSB41BA3B) and the Firecomms Tx and Rx FOT pair, part numbers FDL300E and FDL300D.
Figure 2. Circuit schematic for interface between a T1 1394b PHY and Firecomms FOTs.
Note on Reduced Power Consumption
Firecomms FOTs do not need a level-shifting circuit between the PHY and FOT as the differential I/O swings have
been matched. The result of this PHY and FOT I/O matching is the elimination of power consumption by the level
shifting circuit. Previously, FOT designs required a level shifting network (LVDS to LVPECL) which consumed
approximately 33 mA from the power rail (Vcc) for each I/O. In that design, power consumption continued
irrespective of the PHY IC and even if the FOTs were powered down or in sleep states. With the Firecomms FOT
solution, this power consumption has been eliminated.
In the circuit shown in Figure 2, once the PHY and FOTs enter a sleep state the power consumption is reduced to the
data sheet values for PHY and FDL300 sleep states. There is no residual power consumption from the interface circuit.
Similarly, if the PHY and the FOTS experience a hard power-down, current consumption goes to zero.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 9
MECHANICAL DATA
FDL300E-120
FDL300D-120
Figure 3.
Mechanical data for the Firecomms integrated transmitter FDL300E and integrated receiver FDL300D.
Notes:
A. The metal projections at the top corners of the package are internally connected and should not come
into electrical contact with any metal surface, ground plane or circuit board.
B. The alignment ring (diameter 3.25/4.10) is the primary mechanical reference for alignment of the fiber.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 10
PCB LAYOUT FOR SMI CONNECTOR
(CONSUMER 1394 APPLICATIONS)
Figure 4.
PCB footprint for SMI connector housing containing Firecomms FDL300E integrated transmitter and FDL300D high sensitivity
integrated receiver with pre-formed leads. Firecomms FOTs with straight leads also are available.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 11
POWER MANAGEMENT FUNCTIONS
There are four port states available when Firecomms FDL FOTs are configured for IEEE 1394 operation. These states
are described in the Port States table.
Each FOT can be in one of three states: On, Sleep, or Off. Based on these states, the port states can be implemented
as follows:
• Full Power: Both Tx and Rx are fully powered up
• Low Power: Tx and Rx are in a sleep state
• Ultra-Low Power: Tx is fully powered down (Vcc = 0 V) and Rx is in a sleep state
• Off: Both Tx and Rx are fully powered down (Vcc = 0 V)
PORT STATES
Port State
Tx
Tx Current
Consumption
(Maximum)
Rx
Rx Current
Consumption
(Maximum)
Tx+Rx
Total Maximum
Current
Full Power
Low Power
Ultra-Low Power
Off
On
Sleep
Off
55 mA
20 uA
0 A
On
Sleep
Sleep
Off
45 mA
20 uA
20 uA
0 A
100 mA
40 uA
20 uA
0 A
Off
0 A
The FDL300E/D FOT pair supports the IEEE 1394b PMD wake up on LAN specification (ref: TS2004024). Low power
mode is triggered by the differential voltage signal swing at the input to the Tx dropping below 50 mV. In this case, the
Tx switches to a sleep power state consuming a maximum of 20 uA. Ultra-low power mode is triggered by a hard-
disable of the Tx, which is when the power to the Tx is switched off (Vcc = 0 V). In both low power and ultra-low
power cases, the Rx responds to the Tx powering down. With the Tx powered off, the Rx signal detect (SD) drops low
and remains low for more than 50 ms at which point the Rx also switches into sleep mode (consuming a maximum of
20 uA). The last power mode is referred to as power off. This occurs when the DC power (Vcc) to both the Tx and Rx
is hard-disabled (switched off). The wake up is described by the circuit diagrams shown in Figures 5 through 7.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 12
Figure 5.
In low power or ultra-low power state, the
receiver uses a maximum of 20 uA to monitor
optical activity. The PIN diode and a voltage
reference monitor for the presence of optical
data.
Figure 6.
On receiving optical power, the Rx will power
up all sections of the IC, except the output data
section, and will check to see if the optical
signal is a valid data signal.
Figure 7.
Once valid data has been received for 5 us, the
complete IC powers up and data is available
from the Data+ and Data- output pins.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 13
Figure 8.
Timing diagrams for PMD wake-up on LAN.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 14
EVALUATION BOARDS
Firecomms offers a Transceiver Developer Kit that consists of two evaluation boards for the Firecomms IEEE 1394 FOT.
Each evaluation board includes one 10m cable (Eska Mega 0.3NA) completely assembled with connector plugs, and
is fitted with a choice of a SMI connector or an IDB connector that contains the FDL300E/FDL300D pair. SMA-type
connectors are used to interface Data I/O, SD, and Rex.
PACKING INFORMATION
Components are packed in PVC anti-static tubes in moisture barrier bags. Bags should be opened only in static-
controlled locations, and standard procedures should be followed for handling moisture sensitive components.
PACKING INFORMATION
Components per Tube
Tube Length
50
316 mm
5 mm
Tube Height
Tube Depth
20 mm
Tubes per Bag
Bags per Inner Carton
Inner Carton Length
20
1
450 mm
100 mm
120 mm
Inner Carton Height
Inner Carton Depth
Weight per Inner Carton, Complete
Components per Inner Carton
0.7 Kg
1000
Inner Cartons per Outer Carton
4
Outer Carton Length
Outer Carton Height
Outer Carton Depth
465 mm
260 mm
220 mm
Weight per Outer Carton, Complete
Components per Outer Carton
3.2 Kg
4000
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
FDL300E/FDL300D
Page 15
Figure 9. FDL300 Rx components inside tube.
Figure 10. FDL300 Tx components inside tube.
ORDERING INFORMATION
Part Number
Name
Description
FDL300E-120
FDL300D-120
FDL300K-120
Tx FOT
Rx FOT
Kit
Transmitter, pre-formed leads (see Figure 3)
Receiver, pre-formed leads (see Figure 3)
Includes Tx FOT (FDL300E-120) and Rx FOT (FDL300D-120)
Firecomms Ltd.
2200 Airport Business Park
Cork, Ireland
Ph +353 (21) 4547100 Fax +353 (21) 4322657
www.firecomms.com
Copyright (c) 2007 Firecomms Ltd.
FDL300E/FDL300D (Preliminary) Revision P13
Firecomms assumes no responsibility for inaccuracies or omissions in the information
contained in this document. Specifications are subject to change without notice.
No patent rights are granted to any of the circuits described herein.
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