Piet De Pauw Chairman Melexis Opto Division MOST All Members Meeting Frankfurt 11 March 2008 © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mbps Fiber Optic Transceivers for MOST Why Melexis in 150 Mbps MOST? MLX75605 Fiber Optic Transceiver Receiver Transmitter Package Availability and Conclusions © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mbps Fiber Optic Transceivers for MOST Why Melexis in 150 Mbps MOST? MLX75605 Fiber Optic Transceiver Receiver Transmitter Package Availability and Conclusions © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mbps Fiber Optic Transceivers for MOST © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Automotive market is around 70% of Melexis sales. © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Fully ISO/TS 16949 Qualified Melexis Automotive Network Transceivers LIN LIN transceivers • Single and multi channel LIN System Basis Chips (SBC) Transceiver + Voltage Regulator + … Configurable LIN slaves • • Switch modules and contact monitoring Express down window lift, rear wiper control, small pumps, … ROM programmable LIN slaves • ASICs Flash LIN slaves • • • • • • Headlamp swiveling, HVAC flaps Anti pinch window lift Complete door modules Electric parking brake Seat positioning, seat heat/vent. Seat belt retractor, … LIN products developed in close collaboration with Vehicule Manufacturers in Europe, US and Asia. © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved • Melexis Automotive Network Transceivers GM LAN transceiver: TH8056 80% market share Shipping 3Mio parts per month Result from a long term relationship with GM (*) GM LAN: GM specific Single Wire CAN standard © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Only device approved for GM LAN gen 2.x next to Freescale Optoelectronics Optoelectronics sales sales is is around around 30 30 Million Million EUR/year. EUR/year. Key-less Entry Headlight Control Optical Switch MLX75303 Light-to-Frequency Converter MLX75304 Anti-Glare Mirror Light-to-Frequency Converter MLX75304 Rain Sensor ASIC Linear Array MLX90255 APPLICATION FUSION Exterior view: Night Vision Adaptive Cruise Control Lane Departure Warning Traffic Sign Recognition Interior view: Driver Drowsiness Smart Airbag Deployment Sunload Sensor ASIC Camera MLX75307 Console Light Control Display Brightness Control Light-to-Voltage/Frequency Converter MLX75304/305 Switch & Rotary Buttons Steering Controls Optical Switch MLX75303 Steering Wheel Angle Sensing Steering Wheel Torque Sensing Linear Array MLX90255, ASIC Optical Switch MLX75303 © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Fuel Composition Analysis Melexis Linear Array © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis Melexis Automotive Automotive Optoelectronic Optoelectronic Products Products Compatible Compatible to to SMD SMD solder solder processes processes and and ambient ambient temperatures temperatures -40C -40C to to +125C +125C Melexis Melexis Optoelectronic Optoelectronic components components for for Steering Steering Angle Angle and and Torque Torque Sensing Sensing Melexis LED Driver © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis Automotive LED Drivers Why Melexis in 150 Mbps MOST? MLX75605 Fiber Optic Transceiver Receiver Transmitter Package Availability and Conclusions © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mbps Fiber Optic Transceivers for MOST 650 nm wavelength 150 Mbps speed Compatible to 1 mm PMMA POF © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved 150 Mbps Fiber Optic Transceiver Connection to Pigtail Pigtail connecting FOT and MOST connector Fiber Optic Transceiver (FOT) In 24 pin SOIC Withstands leadfree SMD solder processes © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved MOST 2+x (x= 0, 12, 20,…) connector Integrated ferrule clamp to 1 mm PMMA POF Features 3.3 V power supply • LVDS inputs for transmitter • LVDS output for receiver Fully optical tested Operating temperature range -40C to 95C © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Low EMI electrical connections: Transmitter maximum Power: -1.5 dBm Transmitter Minimum Power: - 6.5 dBm Maximum Pigtail loss 1.5 dB: - 8 dBm (SP2) Budget for Link loss: 14 dB (2x2.5 dB connector losses + 2x2 dB in line connectors + 4.5 dB POF losses > 15m): - 22 dBm (SP3) Maximum Pigtail loss 1.5 dB: - 23.5 dBm Minimal Receiver Sensitivity: - 23.5 dBm © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Optical Budget over Full Temperature Range -40C to +95C Why Melexis in 150 Mbps MOST? MLX75605 Fiber Optic Transceiver Receiver Transmitter Package Availability and Conclusions © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mbps Fiber Optic Transceivers for MOST © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mb/s Fiber Optic Receiver MLX75603 © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved 150 Mbps Receiver MLX75603AA Block Diagram Integration of PD results in: • High immunity to EMI • Lower assembly costs © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Integrated PIN Photo Diode Receiver IC Bandwidth over supply voltage range Minimum -3 dB bandwidth needed for application MLX75603AA Analog path bandwidth at 95degC over supply range -1.0 1 10 100 1000 Attenuation (dB) -3.0 -5.0 3,0V -7.0 3,3V -9.0 3,6V -11.0 -13.0 -15.0 -17.0 Frequency (kHz) © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved 1.0 Receiver eye diagram performed at -26dBm light power Vdd=3.3V -40 degC with speed enhancement block © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved 150 Mbps Receiver MLX75603AA SP4 Eye Mask Why Melexis in 150 Mbps MOST? MLX75605 Fiber Optic Transceiver Receiver Transmitter Package Availability and Conculsions © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mbps Fiber Optic Transceivers for MOST © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mb/s Fiber Optic Transmitter Transmitter during Power ON © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mb/s Fiber Optic Transmitter Light source Requirements 1. (RC)LED should be able to couple at least 0.5mW in 1mm PMMA POF. 2. Temperature dependence of light emitted power Lower than |-0.9| %/K 2 3. Fall/rise time should be as low as possible but it is sufficient to be close to spec requirements i.e. tr and tf <4ns. Using pre-emphasis the (RC)LED rise and fall times can be reduced within spec. Popt, dBm 0 -2 -4 -6 -8 -10 -50 0 50 Temperature, °C 7.8mA Conclusion: Only a small number of (RC)LED types available on the market today are useful. 100 16mA 25.7mA 150 © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved 4 (RC)LED Bandwidth Enhancement • Rise time is determined by the time needed to build-up a minority carrier concentration within the RCLED, corresponding to the light level selected. • Fall time is determined by the minority carrier concentration and the minority carrier lifetime within the RCLED. (RC)LED bandwidth is boosted using pre-emphasis. i.e. a current peak during rising and falling edge. (RC)LED drive current is obtained by summing two currents: a Modulation current and a Pre-emphasis current. © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved (RC)LED characteristics: 150 Mbps Transmitter IC MLX75604AA Block Diagram min3dB CONTROL LVDS receiver Buffer INPUT+ Swing control led driver with swing control and common-mode feedback Vcm Ibias Imod Commun. circuit Modulation current generator Peaking circuit Bias current generators VCC GND Zapping circuit Settings Bandgap current generator © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved INPUT- Optical Power over Temperature MLX75605AA Optical power over temperature into 1mm PMMA SI POF 0 -50 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 -1 -3 -4 -5 -6 -7 Trimmed optical power Untrimmed optical power -8 Temperature (degC) © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Optical power (dB) -2 MLX75604 (RC)LED Driver Die Concept Extended test modes e.g. allowing direct access to RCLED terminals. © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved On chip trimming structures Rise time: min 1.012ns max: 1.369ns MOST specification: 0.5UI=3.391ns/2=1.6955ns in the worst case (48kHz frame speed) © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved MLX75604AA Transmitter IC SP2 Overshoot Mask 150 Mbps MOST V0.9 Fall time: min 1.207ns max: 1.635ns MOST specification: 0.5UI=3.391ns/2=1.6955ns in the worst case (48kHz frame speed) © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved MLX75604AA Transmitter IC SP2 Undershoot Mask 150 Mbps MOST V0.9 Time base: 424ps/div Transmitter eye diagram performed At Vdd=3.3V with MOST worst case pattern © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved MLX75604AA Transmitter IC SP2 Eye Mask 150 Mbps MOST V0.9 Why Melexis in 150 Mbps MOST? MLX75605 Fiber Optic Transceiver Receiver Transmitter Package Conculsion © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mbps Fiber Optic Transceivers for MOST © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mb/s Fiber Optic Transceivers Anchoring of Clamp Lid “Anchors” at SOIC bottom. Clamp is anchored at SOIC bottom for more robustness when force is applied on the fiber. 24 pin SOIC © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved “Mushrooms” on lid. Clamp is anchored to lid. Pick and Place This allows the device to be handled by the vacuum pick-up head of a standard pick & place SMD machine. © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Flat surface area on top has a length larger than 6 mm. SMD Soldering Process MLX75605 withstands lead free SMD assembly processes according IPC/JEDEC J-STD020 i.e. withstands 245 oC +0 oC/-5 oC during at least 30 sec In order to protect device during soldering process, devices are delivered with a kapton tape on the top. Kapton tape can be easily removed before ferrule insertion. © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved MLX75605 withstands Moisture Sensitivity Level #3. © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Ferrule insertion into the FOT Mistake-Proofing (Poka-Yoke) Ferrule insertion into the FOT Mistake-Proofing (Poka-Yoke) Rx Ferrule Tx Ferrule Tx Ferrule Rx Ferrule Not OK OK Rx Tx Rx Tx © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Receiver and transmitter ferrules have two times a different diameter so that the receiver ferrule cannot be inserted in the Transmitter coupling hole, and the transmitter ferrule cannot be inserted into the Receiver coupling hole of the Fiber Optic Transceiver Package. Why Melexis in 150 Mbps MOST? MLX75605 Fiber Optic Transceiver Receiver Transmitter Package Availability and Conclusions © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Melexis 150 Mbps Fiber Optic Transceivers for MOST Availability (plan) Prototypes compliant to 150 Mbps MOST Std rev 0.9: Mid 2008 Qualified product: end of 2008 PPAP: December 2009 © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Production Samples: July 2009 Conclusions 150 Mbps MOST FOT is marketed as component MLX75605 Samples compliant with 150 Mbps MOST V0.9 expected around mid 2008. Receiver die (MLX75603) and Light Source Driver die (MLX75604) are available separately. © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Development of Melexis 150 Mbps MOST Fiber Optic Transceivers proceeds in line with the 150 Mbps MOST standard development. Piet De Pauw, Chairman Opto Division, [email protected] Tel +32 57 226147, gsm +32 485 556208 Melexis Contact persons for support in Japan: David Poole, E-mail: [email protected], +81 90 4226 9543 Yuji Ohkawa: E-mail: [email protected], +81 90 1761 0501 © Copyright Melexis Microelectronic Integrated Systems. All Rights Reserved Thank You