Link budget requirements for Gigabit Ethernet over Plastic Optical Fiber

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1 Link budget requirements for Gigabit Ethernet over Plastic Optical Fiber Rubén Pérez-randa

2 Supporters Frank ldinger (Mitsubishi International) Yutaka Tanida (Mitsubishi Corporation) Y.Tsukamoto (Mitsubishi Rayon) Eric Chan (Boeing) Philippe Bolle (Skylaneoptics) / Mike Cao (Dongguan ipt Industrial Co,.LTD.) John Lambkin (Firecomms) Hugh Hennessy (Firecomms) Josef Faller (Homefibre) Manabu Kagami (Toyota R&D Labs) Bas Huiszoon (Genexis) Oscar Rechou (Casacom) Naoshi Serizawa (Yazaki) Thomas Lichtenegger (vago Tech) 2

3 genda Objectives ssumptions for link budget utomotive requirements Consumer requirements Conclusions 3

4 Disclaimer This presentation does not provide a complete list of requirements for a Gigabit Ethernet PHY, but only the necessary to address the link budget analysis 4

5 Objectives To make a proposal of the receiver sensitivity requirements under worst-case conditions of the optical link budget for Gigabit Ethernet over for two technology applications: utomotive market Consumer market Worst-case receiver sensitivity requirements are going to be the base for technical feasibility study based on Shannon s channel capacity 5

6 ssumptions for link budget For automotive application Same light source (i.e. red LED) qualified for automotive MOST50 application is used Same Plastic Optical Fiber () used in MOST50 applications is used Both previous assumptions allow to make the link budget analysis based on 5 years of experience in millions of real installations Similar requirements to RTPGE are assumed in terms of link segment length and number of inline connectors, because these requirements were agreed by OEMs Worst-case conditions of temperature and aging of optical components in the car will be considered For consumer applications It is developed based on the requirements for automotive applications, but operational conditions and aging specifications are relaxed accordingly Same light source is used in a shorter temperature range Same fiber is used in terms of core and cladding, as typically happens, although jacket is cheaper 6

7 utomotive requirements Requirement Value dditional/comments Max. link segment length 5 m for passenger vehicles with inline connectors 40 m for commercial vehicles without inline connectors Max. number of inline connections 4 inline connectors Bit Error Rate (BER) at GMII RX < 0-2 mbient temperature range of operation ºC 7

8 ) Weberpals H. Muhr LLIMETERS DTE (YYYY-MM-DD) TITLE SHEET of 2 SCLE 5: Customer SIZE 3 C --4 -DD) utomotive link budget: 5 meters + 4 inliners E/O TX in clear mold package ( 0.75) Frontside micro pig-tail 7 8 REV STORE DTE xxxx-xx-xx QFBR-29MLZ-0 DTE DWN CHK F. Weberpals - - NOTES (unless otherwise specified): ) ll not dimensioned radii = max. 0.mm 2) rea for mold cavity number (XX), max. 0.2mm deep, numbers not raised 3) Mold compound overstand in this area allowed 4) Device Marking on backside (for more information see datasheet) 5) Recommended Footprint (Top View) B (.27) max,5 dbo / inliner (temp, aging) GE DTE DWN CHK QFBR-229MLZ-0 YYYY-MM-DD REV STORE DTE H. Muhr F. Weberpals D 5) Recommended Footprint (Top View) information see datasheet) more (for backside on Marking Device 4) NOTES (unless otherwise specified): ) ll not dimensioned radii = max. 0.mm 2) rea for mold cavity number (XX), max. 0.2mm deep, numbers not raised 3) Mold compound overstand in this area allowed micro pig-tail 3.2 O/E RX in clear mold package 2) ( 0.75) Frontside (.27) 0.5 (5x) MTERIL CHNGE MRKER WITH REVISION E MRKER WITH REVISION DRWN BY DTE (YYYY-MM-DD) OTHERWISE SPECIFIED Product Outline MLC-Gbit Ethernet Tx Product Outline Customer 5: LE 3 QFBR-29MLZ-0 SIZE 7 8 PRT NUMBER QFBR-29MLZ max 2 dbo min -7,8 dbm E D min -9,8 dbm C max 3,0 dbo (5m SI- temp, aging) max 2 dbo min -8,8 dbm B min -20,8 dbm QFBR-229MLZ QFBR-229MLZ-0 MLC-Gigabit Ethernet Rx PRT NUMBER DRWING FRME_ F SP2 SP3 Optical Connector & Inline Connectors Optical Connector Red LED: OP max.,5 dbm, min -7,8 dbm in temperature range, aging and optical alignment tolerances. ER min. 8 db, max 2 db Fiber attenuation: max. 0,2 dbo/meter considering aging under EMD launching condition 3 dbo for 5 m Inliner attenuation: max.,5 dbo / inliner in temperature and aging max. 6 dbo for 4 inliners RX sensitivity requirement for max. temperature and aging: -20,8 dbm 8

9 ) Weberpals H. Muhr LLIMETERS DTE (YYYY-MM-DD) TITLE SHEET of 2 SCLE 5: Customer SIZE 3 (.27) C --4 -DD) utomotive link budget: 40 meters E/O TX in clear mold package ( 0.75) Frontside micro pig-tail 7 8 REV STORE DTE xxxx-xx-xx QFBR-29MLZ-0 E DTE DWN CHK F. Weberpals - - NOTES (unless otherwise specified): ) ll not dimensioned radii = max. 0.mm 2) rea for mold cavity number (XX), max. 0.2mm deep, numbers not raised 3) Mold compound overstand in this area allowed 4) Device Marking on backside (for more information see datasheet) 5) Recommended Footprint (Top View) (.27) GE DTE DWN CHK QFBR-229MLZ-0 YYYY-MM-DD REV STORE DTE H. Muhr F. Weberpals D 5) Recommended Footprint (Top View) information see datasheet) more (for backside on Marking Device 4) NOTES (unless otherwise specified): ) ll not dimensioned radii = max. 0.mm 2) rea for mold cavity number (XX), max. 0.2mm deep, numbers not raised 3) Mold compound overstand in this area allowed micro pig-tail ( 0.75) Frontside O/E RX in clear mold package 2) (5x) MTERIL CHNGE MRKER WITH REVISION B MRKER WITH REVISION DRWN BY DTE (YYYY-MM-DD) OTHERWISE SPECIFIED MLC-Gbit Ethernet Tx Product Outline Customer 5: LE 3 QFBR-29MLZ-0 SIZE 7 8 PRT NUMBER QFBR-29MLZ max 2 dbo min -7,8 dbm E D min -9,8 dbm C max 8,0 dbo (40m SI- temp, aging) max 2 dbo min -7,8 dbm B min -9,8 dbm QFBR-229MLZ QFBR-229MLZ-0 MLC-Gigabit Ethernet Rx Product Outline PRT NUMBER DRWING FRME_ F SP2 SP3 Optical Connector segment Optical Connector Red LED: OP max.,5 dbm, min -7,8 dbm in temperature range, aging and optical alignment tolerances. ER min. 8 db, max 2 db Fiber attenuation: max. 0,2 dbo/meter considering aging under EMD launching condition 8 dbo for 40 m RX sensitivity requirement for max. temperature: -9,8 dbm 9

10 utomotive link budget: extension up to 05ºC Optical components for automotive have been qualified up to +95ºC until now because MOST50 was defined for infotainment, and previous link budget analysis has been provided for this temperature range Here is presented a preliminary extension to +05ºC. priori there is no technical reasons limiting the feasibility at 05ºC Optical component manufacturers have to confirm the feasibility Launched optical power of MOST50 devices is reduced down to min dbm for 05ºC RX sensitivity requirements has to be modified accordingly: 5 m segment + 4 inliners -2.5 dbm 40 m segment w/o inliners dbm Open topics for task force: LED reliability; life time under automotive temperature profile up to 05ºC High temperature for 05ºC: aging characterization, C response, max. attenuation, jacket, ging characterization of inliner connectors, to establish max. attenuation. 0

11 Consumer requirements Requirement Value dditional/comments Max. link segment length 50 meters Max. number of inline connections inliner Bit Error Rate (BER) at GMII RX < 0-0 mbient temperature range of operation ºC To allow integration into a wall plug or similar device with restricted air flow and no heat sink

) 3 0. TOLERNCES GENERL - 3.2 5 2.54 0.5 0.6 0.05 ( 0.75) 2 SCLE 5: SIZE 3 Frontside (.

5 E/O TX in clear mold package 0.6 0.05 ( 0.75) Frontside 7 8 REV STORE DTE xxxx-xx-xx QFBR-29MLZ-0 DTE DWN CHK 203--5 F.

12 ) 3 0. TOLERNCES GENERL ( 0.75) 2 SCLE 5: SIZE 3 Frontside (.27) C DRWN BY DTE (YYYY-MM-DD) UNLESS OTHERWISE SPECIFIED NSIONS RE IN MILLIMETERS PROJECTION S CHNGE MRKER WITH REVISION F. Weberpals GULR: ± Consumer link budget: 50 meters E/O TX in clear mold package ( 0.75) Frontside 7 8 REV STORE DTE xxxx-xx-xx QFBR-29MLZ-0 DTE DWN CHK F. Weberpals - - NOTES (unless otherwise specified): ) ll not dimensioned radii = max. 0.mm 2) rea for mold cavity number (XX), max. 0.2mm deep, numbers not raised 3) Mold compound overstand in this area allowed 4) Device Marking on backside (for more information see datasheet) 5) Recommended Footprint (Top View) (.27) max 2,5 dbo / inliner (temp, aging) GE DTE DWN CHK QFBR-229MLZ-0 YYYY-MM-DD REV STORE DTE H. Muhr F. Weberpals D 5) Recommended Footprint (Top View) information see datasheet) more (for backside on Marking Device 4) NOTES (unless otherwise specified): ) ll not dimensioned radii = max. 0.mm 2) rea for mold cavity number (XX), max. 0.2mm deep, numbers not raised 3) Mold compound overstand in this area allowed O/E RX in clear mold package 2) (5x) of TITLE Outline Product Rx Ethernet MLC-Gigabit MTERIL - DIMENSIONS RE IN MILLIMETERS UNLESS OTHERWISE SPECIFIED (YYYY-MM-DD) DTE BY CHECKED E TITLE SHEET of 5: SCLE Customer 3 SIZE MLC-Gbit Ethernet Tx Muhr H. CHNGE MRKER WITH REVISION DRWN BY DTE (YYYY-MM-DD) F. Weberpals SHEET Customer - FIRST NGLE PROJECTION ER: ± / NGULR: ± B Product Outline C PRT NUMBER QFBR-29MLZ QFBR-29MLZ-0 min -6,7 dbm E D max 9,5 dbo (50 m SI- temp, aging) B min -8,7 dbm QFBR-229MLZ QFBR-229MLZ-0 PRT NUMBER DRWING FRME_ F SP2 SP3 Optical Connector segment Optical Connector Red LED: OP max. - dbm, min -6,7 dbm in temperature range, aging and optical alignment tolerances. ER min. 8 db, max 2 db Fiber attenuation: max. 0,9 dbo/meter considering aging under EMD launching condition 9,5 dbo for 50 m Inliner attenuation: max. 2,5 dbo / low cost inliner in temperature and aging RX sensitivity requirement for max. temperature: -8,7 dbm 2

13 Conclusions baseline of requirements for utomotive and Consumer applications of GE have been provided Based on these requirements, a link budget analysis have been carried out, to extract the receiver sensitivity to fulfill the requirements Shannon s capacity analysis should be based on these requirements to establish the technical feasibility 3

14 Questions?

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