Automotive ICs MLX71120 300 to 930MHz FSK/FM/ASK Receiver Bus ICs IR Temperature • Input frequency ranges: 300 MHz to 470 MHz 610 MHz to 930 MHz • Power supply range: 2.1 V to 5.5 V • Temperature range: -40 °C to +125 °C • Standby current: 50 nA • Operating current: 6.5 mA to 8.1 mA • FSK Input Sensitivity: -108 dBm (WB, 433 MHz) -112 dBm (NB, 433MHz) • ASK Input Sensitivity: -113 dBm (WB, 433MHz) • Selectable IF2 frequency: 10.7 MHz or 455 kHz • FM/FSK deviation range: ±2.0 kHz to ±100 kHz • Maximum data rate: 100 kbps NRZ, 50 kbps bi-phase code • Image rejection: 65 dB 1st IF (with external RF front-end filter) 25 dB 2nd IF (internal image rejection) • Spurious emission: < -54 dBm • Linear RSSI range: > 70 dB • MCU clock frequency: 2.0 MHz to 3.4 MHz CMOS Imaging Technical Data Overview Silicon MEMS • Internal FSK demodulator • Average or peak detection data slicer mode • RSSI output with high dynamic range for signal strength indication • Output noise cancellation filter • MCU clock output • High over-all frequency accuracy • 32 pin Quad Flat No-Lead (QFN 5x5 Quad) RF&RFID • Dual RF input for antenna and frequency diversity, LNA cascading or diff. feeding • Fully integrated PLL-based synthesizer • 2nd mixer with image rejection • Reception of ASK or FSK modulated signals • Wide operating voltage and temperature range • Very low standby current consumption • Low operating current consumption • External IF filters: 10.7MHz or 455kHz Intelligent Drivers and Actuators Features Hall ICs The MLX71120 is a multi-band, single-channel RF receiver based on a double-conversion super-heterodyne architecture. It can receive FSK and ASK modulated signals. The IC is designed for general purpose applications for example in the European bands at 433MHz and 868MHz or for similar applications in North America or Asia, e.g. at 315MHz or 915MHz. It is also well-suited for narrow-band applications according to the ARIB STD-T67 standard in the frequency range 426MHz to 470MHz. The receiver’s extended temperature and supply voltage ranges make the device a perfect fit for automotive or similar applications where harsh environmental conditions are expected. 14 2 17 MIX2 IFA LO1 SW1 N1 counter SEQ RFSEL VCO 31 LF 30 PKDET _ 25 PDN 21 OA2 DIV 8 CP ENRX 26 20 PDP SW2 RO BIAS TEST 28 15 NCF DTAO 29 CINT 22 19 23 Applications • • • • • General digital and analog data receiving Tire Pressure Monitoring Systems (TPMS) Remote Keyless Entry (RKE) Wireless access control Low-power telemetry systems • • • • • Home and building automation Alarm and security systems Garage door openers Remote controls Active RFID tags Application Circuits VCC RCL XTAL ENRX RFSEL output XTAL CX Bus ICs 16 FSK ASK 8 LNAI2 Dual-Channel Application ROI 25 IFSEL 27 DTAO 29 TEST 26 SLC 19 11 12 13 14 15 16 CB1 DF1 17 CF2 FSK ASK CP2 CB2 CP1 DFO 18 10 CIF CB0 CERFIL CLKO 28 ENRX 30 7 VEE CF3 PDP 20 32L QFN 5x5 6 LNAO2 9 CF2 RFSEL 31 32 C6 PDN 21 MLX71120 DF2 15 4 MIXP 5 MIXN SLCSEL 14 VCC 22 MODSEL DF2 13 3 LNAO1 IFAN SLCSEL 12 CF1 CINT 23 IFAP CP1 CRS 2 VEE VEE CB3 RSSI RSSI 24 MIXO MODSEL 11 DF1 17 C4 CB2 C5 1 LNAI1 VCC ROI 25 IFAN 10 CIF CB1 CP2 DFO 18 IFAP 9 SLC 19 VEE LNAI2 L2 CF3 PDP 20 MIXO 8 PDN 21 32L QFN 5x5 6 LNAO2 7 VEE C9 TEST 26 VCC 22 MLX71120 C3 VCC C6 CLKO 28 3 LNAO1 5 MIXN VCC CB3 CRS CINT 23 4 MIXP antenna 1 RSSI 24 2 VEE VCC C4 C5 RSSI VCC L2 1 LNAI1 DTAO 29 C3 ENRX 30 32 antenna 1 RFSEL 31 CX CF1 VCC RCL CLKO ENRX RFSEL LNASEL Silicon MEMS FSK/ASK VCC output CLKO FSK/ASK IFSEL 27 Intelligent Drivers and Actuators PFD SLCSEL 7 N2 counter ROI Hall ICs VEE PKDET+ 100k LNA2 8 CLKO LNAI2 FSK DEMOD LO2 18 SLC MIX1 DFO OA1 100k FSK 100k 1 LNA1 VCC LNAI1 32 RF&RFID 100k 100k ASK LNASEL CMOS Imaging 16 DF2 24 DF1 27 13 RSSI 12 IFSEL 11 VEE 10 MIXO 9 VCC MIXP 5 MIXN 4 MODSEL VEE 6 LNAO2 3 LNAO1 Automotive ICs Block Diagram CERFIL CB0 Single-Channel Application Email Europe and rest of the world: [email protected] Email USA : [email protected] For additional information go to our website at: Email Asia: [email protected] Sept. 2007 IR Temperature Disclaimer: Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. Melexis makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. Melexis reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with Melexis for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical lifesupport or life-sustaining equipment are specifically not recommended without additional processing by Melexis for each application. The information furnished by Melexis is believed to be correct and accurate. However, Melexis shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of Melexis’ rendering of technical or other services. © 2006 Melexis NV. All rights reserved.