T5743P3 ATMEL [ATMEL Corporation], T5743P3 Datasheet
T5743P3
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T5743P3 Summary of contents
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Features • Two Different IF Receiving Bandwidth Versions Are Available (B • Automotive Compatible Data Interface • IC Condition Indicator, Sleep or Active Mode • Low Power Consumption Due to Configurable Self Polling with a ...
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Pin Configuration Figure 2. Pinning SO20 Pin Description Pin Symbol 1 SENS 2 IC_ACTIVE 3 CDEM 4 AVCC 5 TEST 6 AGND 7 MIXVCC 8 LNAGND 9 LNA_IN 10 n.c. 11 LFVCC LFGND 14 XTO T5743 2 ...
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Pin Description (Continued) Pin Symbol 15 DVCC 16 MODE 17 DATA_CLK 18 DGND 19 POLLING/_ON 20 DATA Figure 3. Block Diagram CDEM AVCC SENS AGND DGND MIXVCC LNAGND LNA_IN 4569A–RKE–12/02 Function Digital power supply Selecting 433.92 MHz/315 MHz Low: f ...
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RF Front-end T5743 4 The RF front-end of the receiver is a heterodyne configuration that converts the input signal into a 1 MHz IF signal. According to Figure 3, the front-end consists of an LNA (low-noise amplifier), LO (local oscillator), ...
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This is described by the following formulas --------- - MODE 0 (USA 314 ----------------- - MODE 1 (Europe 432.92 The relation is designed to achieve ...
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Figure 5. Input Matching Network with SAW Filter L C3 25n 22p f = 433.92 MHz RF L2 TOKO LL2012 RF F33NJ 33n 2 IN_GND C2 8.2p Figure 6. Input Matching Network without SAW Filter f = ...
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... MHz is used. For other RF input frequencies refer to Table 1 to determine RF the center frequency. The T5743 is available with two different IF bandwidths. T5743P3, the version with B = 300 kHz, is well suited for ASK systems where Atmel’s PLL transmitter U2741B is IF used. The receiver T5743P6 employs an IF bandwidth of B can be used together with the U2741B in ASK and FSK mode ...
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FSK/ASK Demodulator and Data Filter Receiving Characteristics T5743 8 The signal coming from the RSSI amplifier is converted into the raw data signal by the ASK/FSK demodulator. The operating mode of the demodulator is set via the bit ASK/_FSK in ...
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Polling Circuit and Control Logic Basic Clock Cycle of the Digital Circuitry 4569A–RKE–12/02 Figure 8. Receiving Frequency Response 0.0 -10.0 -20.0 -30.0 -40.0 -50.0 -60.0 -70.0 -80.0 -90.0 -100.0 -6.0 -5.0 -4.0 -3.0 When designing the system in terms of ...
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Polling Mode T5743 10 Figure 9. Generation of the Basic Clock Cycle T Divider :14/:10 XTO Pin MODE can now be set in accordance with the desired clock cycle T the following application relevant parameters: • Timing of the polling ...
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Sleep Mode 4569A–RKE–12/02 ´ ´ Soff Sleep Son Startup = ------------------------------------------------------------------------------------------------------------- - I Spoll + + T T Sleep Startup During T and T the receiver is not sensitive to a transmitter signal. To ...
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Figure 10. Polling Mode Flow Chart Sleep mode: Sleep mode: Sleep mode: All circuits for signal processing are All circuits for signal processing are All circuits for signal processing are disabled. Only XTO and Polling logic is disabled. Only XTO ...
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Figure 11. Timing Diagram for Complete Successful Bit Check ( Number of checked Bits IC_ACTIVE Bit check Dem_out Data_out (DATA) T Start-up Start-up mode Bit-check Mode Configuring the Bit Check 4569A–RKE–12/02 1/2 Bit 1/2 Bit 1/2 Bit T ...
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Figure 13. Timing Diagram During Bit Check ( Lim_min = 14, Lim_max = 24 ) IC_ACTIVE Bit check Dem_out Bit-check- 0 counter T Start-up Start-up mode Figure 14. Timing Diagram for Failed Bit Check (Condition: CV_Lim < Lim_min) ( Lim_min ...
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Figure 15. Timing Diagram for Failed Bit Check (Condition: CV_Lim ³ Lim_max) ( Lim_min = 14, Lim_max = 24 ) IC_ACTIVE Bit check Dem_out Bit-check- 0 counter T Start-up Start-up mode Duration of the Bit Check Receiving Mode Digital Signal ...
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Figure 16. Synchronization of the Demodulator Output T XClk Clock bit-check counter Dem_out Data_out (DATA) Figure 17. Debouncing of the Demodulator Output Dem_out Data_out (DATA) t DATA_min Figure 18. Steady L State Limited DATA Output Pattern After Transmission IC_ACTIVE Bit ...
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Switching the Receiver Back to Sleep Mode Figure 19. Timing Diagram of the OFF-command via Pin DATA IC_ACTIVE IC_ACTIVE IC_ACTIVE IC_ACTIVE Out1 Out1 Out1 Out1 (mC) (microcontroller) (microcontroller) (microcontroller X Data_out (DATA Data_out (DATA) ...
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Figure 21. Activating the Receiving Mode via Pin POLLING/_ON IC_ACTIVE POLLING/_ON Data_out (DATA) Serial bi-directional data line Data Clock T5743 18 t on1 Sleep mode Start-up mode Figure 20 illustrates how to set the receiver back to polling mode via ...
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Figure 22. Timing Diagram of the Data Clock Dem_out Data_out (DATA) DATA_CLK Figure 23. Data Clock Disappears Because of a Timing Error Dem_out Data_out (DATA) DATA_CLK 4569A–RKE–12/02 The data clock is available, after the data clock control logic has detected ...
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Figure 24. Data Clock Disappears Because of a Logical Error Dem_out Data_out (DATA) DATA_CLK Figure 25. Output of the Data Clock After a Successful Bit Check Dem_out Data_out (DATA) DATA_CLK T5743 20 Data '1' '1' '1' '0' '1' '1' Receiving ...
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Digital Noise Suppression Automatic Noise Suppression (see Figure 29) 4569A–RKE–12/02 Figure 26. Timing Characteristic of the Data Clock (Rising Edge on Pin DATA) Data_Out Serial ...
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Figure 28. Output of Digital Noise at the End of the Data Stream Bit check ok Bit check ok Preburst Preburst Data_out (DATA) Data_out (DATA) DATA_CLK DATA_CLK Receiving mode, Receiving mode, Bit-check Bit-check data clock control data clock control mode ...
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Figure 31. Controlled Noise Suppression Bit check ok Serial bi-directional Preburst data line (DATA_CLK) POLLING/_ON Bit-check mode Configuration of the Receiver 4569A–RKE–12/02 OFF-command Data Digital Noise Start-up Receiving mode mode The T5743 receiver is configured via two 12-bit RAM registers ...
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Table 4. Effect of the Configuration Words Within the Registers Bit 1 Bit 2 Bit 3 Bit 4 1 BR_Range 0 1 Baud1 Baud0 Default values Bit 3... Lim_ Lim_ min5 min4 Default values 0 ...
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Table 7. Effect of the Configuration Bit Modulation Modulation ASK/_FSK 0 1 Table 8. Effect of the Configuration Word Sleep Sleep Sleep4 Sleep3 Sleep2 Sleep1 ...
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Table 11. Effect of the Configuration Word Lim_min (1) Lim_min (Lim_min < Not Applicable) Lim_min5 Lim_min4 Lim_min3 ... ... ... ... ... ... ...
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Figure 32. Generation of the Power-on Reset V S POR X Data_out (DATA) Programming the Configuration Register Figure 33. Timing of the Register Programming IC_ACTIVE t1 Out1 (µC) Data_out (DATA) X Serial bi-directional data line X Receiving mode 4569A–RKE–12/02 The ...
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Figure 34. Data Interface T5743 Input - Input - Interface Interface Data_In Data_In Data_out ...
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Data Interface Figure 35. Application Circuit 2.2u 10n 10% 10% GND COAX C17 3.3p 5% np0 4569A–RKE–12/02 Programming respectively OFF-command is initiated in any case. The registers OPMODE and LIMIT are set to the default ...
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Figure 36. Application Circuit 2.2u 10n 10% 10% GND COAX C17 3.3p 5% np0 Figure 37. Application Circuit 2.2u 10n 10% 10% GND L2 TOKO LL2012 COAX F33NJ 1 2 ...
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Figure 38. Application Circuit 2.2u 10n 10% 10% GND L2 TOKO LL2012 COAX F82NJ 1 2 82n 10p 4 5% np0 Absolute Maximum Ratings Parameters Supply voltage Power dissipation Junction temperature Storage ...
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Electrical Characteristics = -40 ° +105 ° All parameters refer to GND, T amb = 25 ° C) (For typical values amb Parameter Test Conditions Basic Clock Cycle of the ...
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Electrical Characteristics (Continued) = -40 ° +105 ° All parameters refer to GND, T amb = 25 ° C) (For typical values amb Parameter Test Conditions Maximum Low BR_Range = ...
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Electrical Characteristics (Continued) = -40 ° +105 ° All parameters refer to GND, T amb = 25 ° C) (For typical values amb Parameter Test Conditions Equivalent acknowledge pulse: E_Ack ...
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Electrical Characteristics (Continued) = -40 ° +105 ° All parameters refer to GND, T amb = 25 ° C) (For typical values amb Parameters Maximum input level Local Oscillator Operating ...
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Electrical Characteristics (Continued) = -40 ° +105 ° All parameters refer to GND, T amb = 25 ° C) (For typical values amb Parameters Input sensitivity ASK 600 kHz IF-filter ...
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Electrical Characteristics (Continued) = -40 ° +105 ° All parameters refer to GND, T amb = 25 ° C) (For typical values amb Parameters Input sensitivity FSK 600 kHz IF-filter ...
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Electrical Characteristics (Continued) = -40 ° +105 ° All parameters refer to GND, T amb = 25 ° C) (For typical values amb Parameters Edge-to-edge time period of the input ...
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Electrical Characteristics (Continued) = -40 ° +105 ° All parameters refer to GND, T amb = 25 ° C) (For typical values amb Parameters Digital Ports Data output - Saturation ...
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... Ordering Information Extended Type Number T5743P3-TG T5743P3-TGQ T5743P6-TG T5743P6-TGQ Package Information Package SO20 Dimensions in mm 0.4 1. T5743 40 Package Remarks SO20 Tube, IF bandwidth of 300 kHz SO20 Taped and reeled, IF bandwidth of 300 kHz SO20 Tube, IF bandwidth of 600 kHz SO20 Taped and reeled, IF bandwidth of 600 kHz 12 ...
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Atmel Headquarters Corporate Headquarters 2325 Orchard Parkway San Jose, CA 95131 TEL 1(408) 441-0311 FAX 1(408) 487-2600 Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland TEL (41) 26-426-5555 FAX (41) 26-426-5500 Asia Room 1219 Chinachem ...