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HFBR-5112FDM
Datasheet
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HP HFBR-5113FDA, HFBR-5112FDS, HFBR-5112FDN, HFBR-5112FDM, HFBR-5112FDB Datasheet

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92
Low Cost, Industry Standard FDDI MIC Transceivers
Technical Data
HFBR-5111 (2x11) HFBR-5112 (Narrow 1x13) HFBR-5113 (Standard 1x13)
Features
• Multisourced Package Style with:
- 2x11 or 1x13 Pin
Configuration
- MIC Receptacle
- Field Changeable Keying
• Wave Solder and Aqueous Wash Process Compatible Package
• Internal Shielding for Low EMI Emissions and High EMI Immunity
• Single +5V Power Supply
• Shifted ECL Logic Interface Directly Compatible with FDDI PHY Circuits
• Manufactured in an ISO 9001 Certified Facility
Applications
• FDDI Concentrators, Bridges, Routers, and Network Interface Cards
• 100 Mbps ATM Interfaces
• Fast Ethernet Interfaces
• Point-to-Point Data Communications
• Replaces DLX2012-FD and DLX2020-FD Model Transceivers
Description
The HFBR-511X family of trans­ceivers from Hewlett-Packard consists of high performance, cost effective modules for optical data communication applications at the 100 Mbps/125 MBd rate.
The transceivers feature full compliance with the Fiber Distributed Data Interface (FDDI) Physical Media Dependent (PMD) standard. This standard has been approved as an International Standard, ISO/IEC 9314-3, and an American National Standard, ANSI X3.166 - 1990. The HFBR­5111 represents the 2x11 package style. The “2x11” denotes two rows of eleven pins. The HFBR-5112 and HFBR-5113 represent the Narrow and Standard 1x13 package styles, respectively. The “1x13” denotes one row of thirteen pins.
The modules are designed for 50 or 62.5 µm core multimode optical fiber and operate at a nominal wavelength of 1300 nm. Each transceiver incorporates
our high-performance, reliable, long-wavelength optical devices and proven circuit technology to give long life and consistent performance.
The transceivers are optimized for 125 MBd operation but can be used over a wide range of signal rates. The transceivers are guaranteed to meet FDDI PMD specifications when used within the operating conditions specified in this document.
These HFBR-511X Series trans­ceivers are also useful for both ATM 100 Mbps interfaces and Fast Ethernet 100 Base-FX interfaces. The ATM Forum User­Network Interface (UNI) Standard, Version 3.0, defines the Physical Layer for 100 Mbps Multimode Fiber Interface for ATM in Section 2.3 to be the
5964-9019E (2/96)
93
FDDI PMD standard. Likewise, the Fast Ethernet Alliance defines the Physical Layer for the 100 Base-FX Version of IEEE 802.3u to be the FDDI PMD standard.
Hewlett-Packard also provides several other FDDI products compliant with the FDDI Low Cost Fiber (LCF) -PMD and Single Mode (SM) -PMD standards. These products are available with ST, SC, and FC connector styles. They are available in the 1x9 transceiver and 14- and 16-pin transmitter/ receiver package styles for those designs that require these alternate configurations. Contact your Hewlett-Packard sales representative for information on these alternative FDDI products.
Transmitter Section
The transmitter section of the HFBR-511X Series utilizes a 1300 nm surface emitting InGaAsP LED. The LED is packaged in the optical subassembly portion of the transmitter section. It is dc­coupled to a custom IC which converts differential-input, PECL logic signals, ECL referenced (shifted) to a +5 V power supply, into an analog LED drive current.
Receiver Section
The receiver section of the HFBR-511X Series utilizes an InGaAs PIN photodiode coupled to a custom silicon transimped­ance preamplifier IC. They are packaged in the optical sub­assembly portion of the receiver.
The PIN/preamplifier combina­tion is ac-coupled to a custom quantizer IC which provides the final pulse shaping for the logic output and the Signal Detect function. Both the Data and Signal Detect outputs are
differential. Also, both Data and Signal Detect outputs are PECL compatible, ECL referenced (shifted) to a +5 V power supply.
Package
The overall package concept for the HP transceiver consists of the following basic elements: two optical subassemblies, an electrical subassembly, and the housing with full compliance to the FDDI PMD standard. A block diagram is illustrated in Figure 1.
The package outline drawings and pin-outs are shown in Figures 2 and 3. These are compliant with the industry standard 2x11 and 1x13 pin configurations.
The optical subassemblies utilize a high-volume assembly process together with low-cost lens elements which result in a cost­effective building block.
The electrical subassemblies consist of a high-volume, multi­layer printed circuit board on which the IC chips and various surface-mounted passive circuit elements are attached.
Each transceiver package includes internal shields for the electrical and optical subassem­blies to ensure low EMI emissions and high immunity to external EMI fields.
The outer housings including the MIC receptacles are molded of filled non-conductive plastic to provide mechanical strength and electrical isolation. The solder posts of each package design are isolated from the circuit design of the transceiver and do not require connection to a ground plane on the circuit board.
Each transceiver is attached to its printed circuit boards with the 2x11 or 1x13 signal pins and the solder posts which exit the bottom of the housing. The solder posts provide the primary mechanical strength to withstand the loads imposed on the transceiver when mating with MIC-connectored fiber cables.
Application Information
The Applications Engineering group of the Optical Communica­tion Division is available to assist you with the technical under
Figure 1. HFBR-5111/-5112/-5113 Block Diagram.
DATA OUT
SIGNAL DETECT OUT
DATA IN
ELECTRICAL SUBASSEMBLY
QUANTIZER IC
DRIVER IC
TOP VIEW
PIN PHOTODIODE
OPTICAL SUBASSEMBLIES
LED
PREAMP
IC
DIFFERENTIAL
DIFFERENTIAL
DIFFERENTIAL
MEDIA INTERFACE CONNECTOR
RECEPTACLE
94
H
39.94
(1.533)
LATCH
POINTS
33.02
(1.300)
MAX.
2.54
(0.100)
TYP.
34.46 (1.357)
29.00 (1.142)
13X ∅
LEADS
0.48
(0.019)
2X ∅
1.00
(0.039)
2X ∅
SOLDER POSTS
1.52
(0.060)
22.86
(0.900)
19.99
(0.787)
24.86
(0.979)
OPTICAL
REFERENCE
PLANE
5.79
(0.228)
9.14
(0.360)
41.30
(1.626)
16.00
(0.630)
MAX.
2X ∅
3.00
(0.118)
PLUG – REF.
66.16
(2.605)
MAX.
35.80
(1.409)
MAX.
2.95
(0.116)
3.68
(0.145)
0.80
(0.031)
11.87
(0.467)
9.40
(0.370)
MAX.
MAX.
FDDI KEY LOCATION
PART NUMBER
DATE CODE
COUNTRY OF ORIGIN
30.48 (1.200)
ø
NOTES:
1. ALL DIMENSIONS ARE MILLIMETERS OVER INCHES.
2. ALL DIMENSIONS ARE NOMINAL UNLESS OTHERWISE SPECIFIED.
3. THE LEADS ARE TIN-LEAD PLATED PHOSPHOR BRONZE.
4. THE POSTS ARE TIN-LEAD PLATED BRASS.
5. THE HOUSING IS GLASS FIBER FILLED BLACK POLYETHERIMIDE.
6. THE MODULE IS SHOWN WITHOUT THE FIELD KEY INSTALLED.
H
PART NUMBER
DATE CODE
COUNTRY OF ORIGIN
35.80
1.409
MAX.
82.5
3.248
MAX.
2.54
0.100
TYP.
5.08
0.200
78.87
3.105
LATCH
POINTS
2.95
0.116
2.95
0.116
0.85
0.034
11.87
0.467
9.40
0.370
MAX.
MAX.
FDDI KEY LOCATION
33.02
1.300
MAX.
35.56
1.400
40.64
1.600
44.45
1.750
45.72
1.800
OPTICAL
REFERENCE
PLANE
81.32
3.202
63.5
2.500
1.52
0.060
SQ.2X
16.00
0.630
MAX.
PLUG – REF.
ACCEPTS SELF TAPPING 2X – M2X0.4 SCREW FOR
OPTIONAL MOUNTING
1.91
0.075
MAX.
2.54
0.100
1.22
0.050
X4X
1.52
0.060
3.80
0.150
2X
34.34
1.352
30.48
1.200
ø
1.50
0.060
4X SOLDER POSTS
ø
0.48
0.019
22X LEADS
Figure 2(a). HFBR-5111 Outline Drawing.
Figure 2(b). HFBR-5112 Outline Drawing.
95
Figure 2(c). HFBR-5113 Outline Drawing.
H
46.56
(1.833)
LATCH
POINTS
33.02
(1.300)
MAX.
2.54
(0.100)
TYP.
38.10 (1.500)
34.46 (1.357)
29.00 (1.142)
13X ∅
LEADS
0.48
(0.019)
2X ∅
1.00
(0.039)
4X ∅
SOLDER POSTS
2.00
(0.079)
15.24
(0.600)
15.24
(0.600)
12.37
(0.487)
17.24
(0.679)
OPTICAL
REFERENCE
PLANE
13.41
(0.528)
16.76
(0.660)
48.92
(1.926)
16.00
(0.630)
MAX.
4X R
2.80
(0.110)
2X ∅
3.00
(0.118)
PLUG – REF.
66.16
(2.605)
MAX.
43.80
(1.724)
MAX.
35.80
(1.409)
MAX.
2.95
(0.116)
4.50
(0.177)
0.80
(0.031)
11.87
(0.467)
9.40
(0.370)
MAX.
MAX.
NOTES:
1. ALL DIMENSIONS ARE MILLIMETERS OVER (INCHES).
2. ALL DIMENSIONS ARE NOMINAL UNLESS OTHERWISE SPECIFIED.
3. THE LEADS ARE TIN-LEAD PLATED PHOSPHOR BRONZE.
4. THE POSTS ARE TIN-LEAD PLATED BRASS.
5. THE HOUSING IS GLASS FIBER FILLED BLACK POLYETHERIMIDE.
6. THE MODULE IS SHOWN WITHOUT THE FIELD KEY INSTALLED.
FDDI KEY LOCATION
PART NUMBER
DATE CODE
COUNTRY OF ORIGIN
30.48 (1.200)
GND 1
NC 2
V
CC
3
V
CC
4 GND 5 GND 6
SD 7 SD 8
V
CC
9
DATA OUT 10 DATA OUT 11
22 GND 21 V
CC
20 V
CC
19 V
CC
18 V
CC
17 GND 16 GND 15 GND 14 V
BB
13 DATA IN 12 DATA IN
TOP VIEW
Figure 3. Pin Assignments.
(a) HFBR-5111
(b) HFBR-5112/-5113
TOP VIEW
GND V
B
DATA IN DATA IN TX V
CC
GND GND RX V
CC
SD SD DATA OUT DATA OUT GND
13
1
96
Hewlett-Packard LED technology has produced 1300 nm LED devices with lower aging charac­teristics than normally associated with these technologies in the industry. The industry convention is 1.5 dB aging for 1300 nm LEDs, however HP 1300 nm LEDs will experience less than 1 dB of aging over normal commer­cial equipment mission life periods. Contact your Hewlett­Packard sales representative for additional details.
Figure 4 was generated with a Hewlett-Packard fiber-optic link model containing the current industry conventions for fiber cable specifications and the FDDI PMD optical parameters. These parameters are reflected in the guaranteed performance of the transceiver specifications in this data sheet. This same model has been used extensively in the ANSI and IEEE committees, including the ANSI X3T9.5 committee, to establish the optical performance requirements for various fiber­optic interface standards. The cable parameters used come from the ISO/IEC JTC1/SC 25/WG3 Generic Cabling for Customer Premises per DIS 11801 document and the EIA/TIA-568-A Commercial Building Telecom­munications Cabling Standard per SP-2840.
Transceiver Signaling Operating Rate Range and BER Performance
For purposes of definition, the symbol rate (Baud), also called signaling rate, is the reciprocal of the symbol time. Data rate (bits/ sec) is the symbol rate divided by the encoding factor used to encode the data (symbols/bit).
When used in FDDI 100 Mbps applications, the performance of the 1300 nm transceivers is guaranteed over the signaling rate of 10 MBd to 125 MBd to the full conditions listed in the individual product specification tables.
The transceivers may be used for other applications at signaling rates outside of the 10 MBd to 125 MBd range with some penalty in the link optical power budget primarily caused by a reduction of receiver sensitivity. Figure 5 gives an indication of the typical performance of these 1300 nm products at different rates.
These transceivers can also be used for applications which require different bit error rate (BER) performance. Figure 6 illustrates the typical trade-off between link BER and the receiver’s input optical power level.
Figure 5. Transceiver Relative Optical Power Budget at Constant BER vs. Signaling Rate.
TRANSCEIVER RELATIVE OPTICAL POWER
BUDGET AT CONSTANT BER – dB
0 200
3.0
0
SIGNAL RATE (MBd)
25 75 100 125
2.5
2.0
1.5
1.0
175
0.5
50 150
CONDITIONS:
1. PRBS 2
7
-1
2. DATA SAMPLED AT CENTER OF DATA SYMBOL.
3. BER = 10
-6
4. TA = 25° C
5. V
CC
= 5 V
dc
6. INPUT OPTICAL RISE/FALL TIMES = 1.0/2.1 ns.
standing and design trade-offs associated with this transceiver. You can contact them through your Hewlett-Packard sales representative.
The following information is provided to answer some of the most common questions about the use of these parts.
Transceiver Optical Power Budget versus Link Length
The Optical Power Budget (OPB) is the available optical power for a fiber-optic link to accommodate fiber cable losses plus losses due to in-line connectors, splices, optical switches, and to provide margin for link aging and unplanned losses due to cable plant reconfiguration or repair.
Figure 4 illustrates the predicted OPB associated with the trans­ceivers specified in this data sheet at the Beginning of Life (BOL). This curve represents the attenuation and chromatic plus modal dispersion losses associated with the 62.5/125 µm and 50/125 µm fiber cables only. The area under the curve represents the remaining OPB at any link length, which is available for overcoming non-fiber cable related losses.
Figure 4. Optical Power Budget at BOL vs. Fiber Optic Cable Length.
OPB – OPTICAL POWER BUDGET – dB
0 4.0
14
0
FIBER OPTIC CABLE LENGTH – km
0.5 1.5 2.0 2.5
12
10
8
4
3.5
2
1.0 3.0
6
62.5/125 µm
50/125 µm
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