ATA5702F1000M-WDQW

Car Access PEPS, RKE, AES Immobilizer 1 Atmel Car Access System Solutions • Atmel® launched the first dedicated transmitter PLL U2741B for Remote Keyless Entry (RKE) applications in 1997 • Atmel is a leading car access supplier and delivered already more than 250 Mio ICs in this application • 2 Strong relationships to the key players in the automotive market Car Access – Basic of RKE Remote Start  Like RKE but RF is typically 2-way  Fob sends RF to car to "start engine"  Car replies with RF to fob "engine running"  Importand Design Considerations  Very long range, > 300m, requires high RF link budget  RF Link budget = f (TX power, RX sensitivity, antenna efficiencies)   3 Higher TX power by managing RF "on" time (averaging) Higher RX sensitivity with narrower IF bandwidth & lower data rate  Requires tight frequency control & compensation (temp/voltage/lot) Car Access – Basic of PEPS Passive Entry / Passive Start  From outside the vehicle: Touch car door (PE)  From inside the vehicle: Press "start" button on dashboard (PS)  LF from car awakens fob (LF downlink)  Fob measures field strength vectors & sends info to vehicle  Fob orientation is arbitrary - must measure x, y, & z axis (3D)  Fob localized: Allow "Unlock" if outside (confirm if 2-way RF)  Fob localized: Allow "Start" if inside (confirm if 2-way RF)  Important system design considerations:  LF field strength regulation over across voltage/temp/coil variation  Accurate LF field strength measurement  High LF field sensitivity outside detection RF trunk separation outside detection outside detection inside detection outside detection 4 outside rear detection Wide Range Of Car Access Solutions RKE Single chip key solution, best in class performance – ATA5774C Best in class receiver, with minimum external component, no external IF filter, supports self polling – ATA5724C / ATA5781 RKE + Immo Single chip key solution, 128 bit AES H/W encryption engine, up to 12.5dBm output power, works down to 1.9V – ATA5795C Best in class receiver, with minimum external component, no external IF filter, supports self polling – ATA5724C / ATA5781 Immo transponder with built in coil, AES standard – ATA5580 5 PKE + Immo Single chip MCU, Immo + 3D LF Wake up – ATA5791 Single chip LF driver + Immo Basestation – ATA5291 Immo transponder with built in coil, AES standard – ATA5580 Optional RF transceiver for smart key and 2 way BCM basestation – ATA5831 Smart RF receiver with Flash+MCU – ATA5782 TPMS Receiver support Door handle touch Car Access: System Solution Vehicle Unidirectional Passive Entry Combi Key Key RF transmitter Ultra low power µC with immobilizer RF Door sensor RF receiver 8-/16-bit MCU RF transceiver transmitter Ultra low power µC with LF immobilizer + 3D LF ImmoLF basestation Bidirectional Passive Entry Body 6 computer RF transceiver Ultra low power µC with LF immobilizer + 3D LF 32-bit MCU LF antenna driver Product Availability Function Both Immobilizer protocol stack Software Production Key fob AES immobilizer transponder ATA5580 Production ATA5795 Production ATA5791 Production ATA5749C Production Key fob Key fob 7 Embedded Part Number Availability AVR Car / Fob AES RKE AVR with immobilizer and RF transmitter AES PEG AVR with immobilizer and 3D wake-up Key fob Fractional-N RF transmitter Both Fractional-N RF transceiver AVR® ATA5831 Production Car Fractional-N RF receiver ATA5781 Production Car Fixed-frequency RF receiver ATA572x Production Car 6-channel LF driver ATA5279C Production Car 4-channel LF driver with Immobilizer Basestation ATA5291 Sampling Car Access Key Fob Controllers RKE AVR® ATA5795C (Primatik) RKE key fobs Stand-alone transponder ATA5580 (TrAESure) PEG AVR 3D immobilizer & RF PEG+RF/ATA5791(Primus+) ATA5702 (Primus2+) PEG AVR+RF ATA5703(Primus2+ROM) PEG Controllers ATA5790N(PrimusX) PEG AVR ATA5700 (Primus2) PEG AVR ATA5701 (Primus2ROM) ATA5790 (Primus) 2010 Part Number 8 2011 2012 2013 Description ATA5795 RKE AVR® controller with AES-128, 315/433MHz RF transmitter and immobilizer ATA5580 Stand-alone AES-128 transponder, 8K Flash, 2K EEPROM ATA5790 PEPS AVR controller with AES-128, 3D LF, immobilizer, 16K Flash, 2K EEPROM ATA5790N PEPS AVR controller with AES-128, 3D LF (enhanced), immobilizer, 16K Flash, 2K EEPROM ATA5791 PEPS AVR controller with AES-128, 3D LF (enhanced), immobilizer, 315/433MHz RF transmitter, 16K Flash, 2K EEPROM ATA5700 PEPS AVR controller with AES-128, 3D LF, 3D immobilizer, 16K/32K Flash, 1K/2K EEPROM ATA5701 PEPS AVR controller with AES-128, 3D LF, 3D immobilizer, 16K/32K ROM, 1K/2K EEPROM ATA5702 PEPS AVR controller with AES-128, 3D LF, 3D immobilizer, 315/433/868/915MHz, 16K/32K Flash, 1K/2K EEPROM ATA5703 PEPS AVR controller with AES-128, 3D LF, 3D immobilizer, 315/433/868/915MHz, 16K/32K ROM, 1K/2K EEPROM Remote Keyless Entry (with Immo) Vehicle ATA577xC / ATA5795C Keyfob Ultra Low power AVR With TX for 315/433/ 868/915 MHz Remote Control RF Data ATA5724C AVR Smart RF Receiver Immobilizer ATA5580 Transponder Ultra Low power AVR With LF Immobilizer AES Crypto Energy / Data Data Immo LF Basestation Two different ICs for Keyfob and Transponder allows a cost optimized approach on the key side 9 Transmitter with AVR µC: ATA577xC Remote Keyless Entry: key Key characteristics Highly integrated with low external BOM 22 VCC 21 20 19 PA0 2 PB0   10 PA2 4 PB 3 / RESET PA3 / T0 SW3 16 15 5 PB2 PA4 / SCK 14 7 8 9 PA5 / MISO 10 11 GND PA7 ANT1 6 ANT2 Perfect current consumption due to optimized AVR microcontroller ATA577x PB1 PA_ENABLE  4kbytes Flash, in-system programmable SW2 17 3 PA6 / MOSI  18 PA1 CLK Key features SW1 GND 1 23 XTAL 24 VS_RF Limited software design effort required 68nF VCC GND_RF  VCC GND  Highly integrated micro-transmitter based on AVR® microcontroller ENABLE  13 12 VCC Wake-up interrupt for all I/Os RF Choke Small package and low external component count allows small board design  Integrated temperature sensor  10-bit ADC, brown-out detection  ESD protection: 2kV HBM  Temperature range - 40°C to +85°C Package: Samples available: PPAP available: QFN24, 5x5mm now now Single Chip LF + RF with µC: ATA5795C Remote Keyless Entry: key Key characteristics   RKE low-power AVR® with immobilizer and RF TX 125kHz immobilizer interface compatible to existing base-station ICs  315MHz – 433MHz Fractional-N RF TX with 12.5dBm Pout  Fast AES hardware crypto engine for both RF and LF  CMMI-certified immobilizer stack Key features  AES is basis for open-source immobilizer software library  Highest security level for encryption (128bit)  Special memory protection secures immobilizer software  High power TX allows extended coverage  Easy software design with existing AVR tool set   11  Low-power effective AVR microcontroller  6kB Flash for customer software available Small package and low external component count allows small board design 1.9V to 3.6V supply voltage Package: Samples available: PPAP available: QFN32, 5x5mm now now Passive Entry Go - Unidirectional Key Vehicle Remote Control ATA5791 Ultra Low power AVR With LF Immobilizer 3D LF Receiver AES Crypto With Integrated PLL Based RF Transmitter RF Data QProx Immobilizer Touch & Proximity Technology Energy / Data Data PEG Wake Up Data  12 Single chip PEPS Keyfob solution ATA5724C / ATA5781 RF Receiver ATA5291 Body Computer LF Antenna Driver + Immobilizer Basestation 32bits MCU Passive Entry / Go – Bidirectional RF Key Vehicle Remote Control ATA5831 ATA5831 Smart RF Transceiver RF Data Ultra Low power AVR With LF Immobilizer 3D LF Receiver AES Crypto Smart RF Transceiver Immobilizer Energy / Data ATA5790N AVR Data PEG Wake Up Data ATA5291 LF Antenna Driver + Immobilizer Basestation Body Computer 32bits MCU QProx Touch & Proximity Technology  13 Complete PEPS solution with Atmel chipset, including capacitive sensing Microcontroller with Immobilizer, 3D LF and RF Transmitter: ATA5791 Passive Entry Go: key Battery VBAT 31 30 29 28 27 26 25 24 23 22 21 20 Key characteristics  Low-power AVR® with immobilizer and 3D LF  125kHz immobilizer interface  3D LF receiver with RSSI: 1.5mVpp worst case  Current consumption in listening mode ~ 4µA  300 to 450MHz RF Transmitter up to 12.5dBm  Fast AES hardware crypto engine RFLoop antenna 32 33 34 35 36 37 38 19 18 17 16 ATA5791 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 VBAT LF- Coil Z- axis LF- Coil Y- axis LF/T- Coil X- axis CBUF Key features   32-bit unique identification number  Two 128-bit secret keys, one 128-bit transponder key  Highest security level for encryption (128bit)  Special memory protection secures immobilizer software  14 AES is basis for open-source immobilizer SW library and comes along with integrated fast AES encryption engine Highly sensitive 3D LF RSSI measurement allows fast wake-up  Tolerance compensation for 3D RSSI measurement  Easy software design with existing AVR tool set  Low-power, effective AVR microcontroller •  14kB Flash for customer software available •  Frac-N RF Transmitter (300MHz – 450MHz) up to 12.5dBm  1.9V to 4.2V supply voltage • Package: Samples available: PPAP available: QFN38 5x7mm Now Now ATA5702 – 3rd Gen PEPS KeyFob with 3D Immobilizer LF Bidirectional Link 125 kHz Engine Control Module Emergency/ Immobilizer Immobilizer Base Station Cbuf LF Up Link 125 kHz AFE X-Axis 3D LF Module Y-Axis Power Management Z-Axis MCU PEPS Antenna Driver Central Board Controller Primus2+ UHF Receiver UHF Transmitter UHF Down Link 315/433/868/915 MHz Vehicle 15 Passive Key Fob Vbat ATA5702 – One chip PEPS Keyfob 2nd Generation Key Fob uC with AES-128, 3D IMMO & RF TX RKE + PEPS + IMMO: Key Key Features • Monolithic Immobilizer/PEPS solution with AES 128 • Open immobilizer Stack • LF Interface: • 3D Transponder and 3D LF wake-up • Programmable sensitivity: 100uVpp / 250uVpp / 500uVpp • 4.7uA current consumption at 250uVpp • Programmable LF bitrates: 1.95k / 3.9k / 7.8kbits/s • Logarithmic RSSI measurement for better spatial localization • RSSI measurement on 3 channels simultaneously