MLX71121KLQ
MLX71121KLQ Datasheet
MLX71121
| Part | Datasheet |
|---|---|
MLX71121KLQ |
MLX71121KLQ (pdf) |
| PDF Datasheet Preview |
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| MLX71121 300 to 930MHz FSK/FM/ASK Receiver Dual RF input for antenna space and frequency diversity, LNA cascading or differential feeding Fully integrated PLL-based synthesizer 2nd mixer with image rejection Reception of ASK or FSK modulated signals Wide operating voltage and temperature ranges Very low standby current consumption Low operating current consumption Internal IF filter Internal FSK demodulator Average or peak detection data slicer mode RSSI output with high dynamic range for RF level indication Output noise cancellation filter MCU clock output High over-all frequency accuracy 32-pin Quad Flat No-Lead Package QFN Ordering Information Temperature Code MLX71121 K -40 °C to 125 °C Package Code LQ 32 L QFN 5x5 Quad Delivery Form 73 pc/tube 5000 pc/T&R Application Examples General digital and analog RF receivers at 300 to 930MHz Tire pressure monitoring systems TPMS Remote keyless entry RKE Low power telemetry systems Alarm and security systems Active RFID tags Remote controls Garage door openers Home and building automation Pin Description bottom LNASEL RFSEL DTAO CLKO IFSEL ROI LNAI1 VEE LNAO1 MIXP MIXN LNAO2 VEE LNAI2 MLX71121 RSSI CINT VCC PDN PDP SLC DFO DF1 VCC MIXO VEE IFAP IFAN MODSEL SLCSEL The MLX71121 is a multi-band, single-channel/dual-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. 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. Page 1 of 28 Data Sheet Jun/08 MLX71121 300 to 930MHz FSK/FM/ASK Receiver Document Content 1 Theory of Operation 4 Technical Data 4 Block Diagram 5 Operating Modes 6 LNA Selection 6 Mixer Section 7 IF Filter 7 IF Amplifier 7 PLL Synthesizer 7 Reference Oscillator 8 Clock 8 FSK Demodulator 8 Baseband Data Path 9 Data Filter 10 Data Slicer 10 Averaging Detection 11 Peak Detection Mode 11 Data Output and Noise Cancellation Filter 12 2 Functional Description Frequency 13 Calculation of Frequency 14 Standard Frequency Plans 15 433/868MHz Frequency Diversity 15 3 Pin Definitions and Descriptions 4 Technical Absolute Maximum Ratings 20 Normal Operating Conditions 20 DC 21 AC System Characteristics 22 External Components 23 5 Test Circuit Antenna Diversity Application 24 Test Circuit Component List of Figures 11 25 Page 2 of 28 Data Sheet Jun/08 MLX71121 300 to 930MHz FSK/FM/ASK Receiver 6 Package Description |
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