mc33493a Freescale Semiconductor, Inc, mc33493a Datasheet
mc33493a
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... Freescale Semiconductor, Inc., 2007. All rights reserved. Document Number: MC33493A MC33493A PIN CONNECTIONS DATACLK DATA = 25 °C BAND A GND XTAL1 XTAL0 REXT Ordering Information Device MC33493ADTB –20°C to 85°C TSSOP14 MC3493ADTBE –20°C to 85°C TSSOP14 Rev. 2, 07/2007 1 MODE ENABLE 3 12 VCC 11 4 GNDRF ...
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Transmitter Functional Description . . . . . . . . . . . . . . . . . . . . . .4 2 Phase Locked Loop and Local Oscillator . . . . . . . ...
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Pin Name 1 DATACLK 2 DATA 3 BAND 4 GND 5 XTAL1 6 XTAL0 7 REXT 8 CFSK 9 VCC 10 RFOUT 11 GNDRF 12 VCC 13 ENABLE 14 MODE Parameter Supply voltage Voltage allowed on each pin ESD HBM ...
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... Transmitter Functional Description 1 Transmitter Functional Description MC33493A is a PLL-tuned low-power UHF transmitter. The different modes of operation are controlled by the microcontroller through several digital input pins. The power supply voltage ranges from 1 3.6 V, allowing operation with a single lithium cell. 2 Phase Locked Loop and Local Oscillator The VCO is a completely integrated relaxation oscillator ...
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Microcontroller Interface Four digital input pins (ENABLE, DATA, BAND, and MODE) enable the circuit to be controlled by a microcontroller. The band frequency and the modulation type should be configured before enabling the circuit. One digital output pin, DATACLK, ...
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State Machine 6 State Machine Figure 3 details the state machine. ENABLE=0 PLL out of lock-in range PLL in lock-in range State 1: The circuit is in standby mode and draws only a leakage current from the power supply. State ...
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ENABLE DATACLK t DATACLK_settling > DATA MODE=0 (OOK) RFOUT MODE=1 (FSK) State 1 Figure 4. Signals Waveform and Timing Definition 7 Power Management When the battery voltage falls below the shutdown voltage threshold (V shutdown, the circuit is latched until ...
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Electrical Characteristics Parameter 1 1.1 Supply current in 1.2 standby mode 1.3 1.7 1.5 Supply current in 1.6 transmission mode 1.8 1.9 1.10 Supply voltage 1.12 1.13 Shutdown voltage threshold 1.14 1.15 2 2.1 R value ext 2.2 2.3 Output ...
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Table 5. Electrical Characteristics (continued) Parameter 2.17 Harmonic 3 level 2.18 2.19 2.20 2.21 Spurious level ± carrier DATACLK 2.22 2.23 Spurious level ± carrier reference 2.24 2.25 2.41 Spurious level @ f /2 ...
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RF Output Spectrum Table 5. Electrical Characteristics (continued) Parameter Note: This parameter depends on crystal characteristics, load capacitor values (see Note: Delay difference definition Input data Demodulated data t delay_rise 3 Input low voltage 3.1 Input high voltage 3.2 3.3 ...
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Resolution bandwidth: 100kHz Figure 5. RF Spectrum at 434 MHz Frequency Band Displayed with a 5 MHz Span Figure 6. RF Spectrum at 434 MHz Frequency Band Displayed with a 50 MHz Span PLL Tuned UHF Transmitter for Data Transfer ...
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RF Output Spectrum Figure 7. RF Spectrum at 434 MHz Frequency Band Displayed with a 1.5 GHz Span Figure 8. RF Spectrum at 434 MHz Band for a 70 kHz FSK Deviation at 4.8 kbit/s PLL Tuned UHF Transmitter for ...
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Output Power Measurement The RF output levels given in Section 9, “Electrical RFOUT pin, as shown below in Figure Figure 9. Output Power Measurement Configurations The configuration shown in Figure 10(a) provides better efficiency in terms of output power ...
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Complete Application Schematic and PCB for OOK Modulation Figure 11 shows the output power versus the R Output power measurement in typical conditions (434MHz - Vcc=3V - 25° RFOUT Level (dBm ...
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Vbat Vbat LED1 B1 R1 750 1 PTA0 PTA1/KBD1 2 PTB0/MCLK PTA2/KBD2 3 PTB1 PTA3/KBD3 4 PTB2/TCH0 PTA4/KBD4 5 PTB4/TCH1 PTA5/KBD5 6 PTB5 PTA6/KBD6 7 PTB3/TCLK 8 OSC1 9 OSC2 10 VSS MC68HC908RK2 Figure 12. Application Schematic for OOK Modulation, ...
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Complete Application Schematic and PCB for FSK Modulation ) Table 7. Typical Crystal Characteristics (SMD Package) NDK LN-G102-950 Parameter (for 315 MHz) Load capacitance Motional capacitance Static capacitance Loss resistance shows a two-button keyfob board. Size is 30 × 45 ...
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Figure 14. Application Schematic for FSK Modulation, Serial Configuration, 434 MHz Frequency Band For 868 MHz band application, the input pin BAND must be wired to ground. See component description in Table 8. External Components Description for FSK Component Y1 ...
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Recommendations for FSK Modulation Figure 15. Application PCB Layout for FSK Modulation, Serial Configuration, 434 MHz Frequency Band Table 9 gives the measured FSK deviations respective to C3 and C4 capacitor values for three deviations. Crystal reference is NDK NX8045GB/CSJ ...
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Device pad capacitance is defined by the package capacitance and by the internal circuitry. Typical capacitance values for these pads are given in Table 11. Some realistic assumptions and measurements have been made concerning track parasitic capacitances for a 0.8 ...
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Case Outline Dimensions 15 Case Outline Dimensions K 14X 0.10 (0.004) S 0.15 (0.006 L PIN 1 IDENT 0.15 (0.006 -V- C 0.10 (0.004) -T- SEATING G D PLANE PLL Tuned UHF ...
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PLL Tuned UHF Transmitter for Data Transfer Applications, Rev. 2 Freescale Semiconductor THIS PAGE INTENTIONALLY BLANK 21 ...
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... Freescale Semiconductor Literature Distribution Center P.O. Box 5405 Denver, Colorado 80217 1-800-441-2447 or 303-675-2140 Fax: 303-675-2150 LDCForFreescaleSemiconductor@hibbertgroup.com MC33493A Document Number: Rev. 2 03/2007 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document ...