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IPS2200 Datasheet(PDF) 10 Page - Renesas Technology Corp |
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IPS2200 Datasheet(HTML) 10 Page - Renesas Technology Corp |
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10 / 35 page ![]() IPS2200 Datasheet Jan.19.21 Page 10 Table 8. LC Oscillator Specifications Symbol Parameter Conditions Minimum Typical Maximum Units RP,eq Equivalent parallel resistance of the LC resonant circuit See Equation 1 and Equation 2. 100 Ω fLC Excitation frequency LC oscillator; determined by external components L and C. 1.7 5.8 MHz FOSC_ACC Accuracy of transmitter oscillator frequency measurement Gated by the internal oscillator. -10 10 % fLC_DIAG_L LC oscillator lower frequency diagnostics range Programmable frequency where an out-of-range frequency diagnostics alarm can be enabled. 0.007 MHz fLC_DIAG_H LC oscillator upper frequency diagnostics range 10 VTX_P LC oscillator amplitude Peak-to-peak voltage; pins TX1 vs. TX2; all modes. The coil current is user programmable. 11 Vpp ILC Programmable transmitter coil drive current Equivalent DC current. Programmable, depending on transmitter coil inductance. 0 3 20 mA ILCmax Maximum transmitter coil drive current tolerance At room temperature 18 20 22 mA CSN_IRQN TX1 TX2 VDD SCK_SCL SIO_SDA 16 15 GND 9 1 6 10 CVD VDDA 8 CVA L 7 CT RX1 RX2 2 3 Rx (sin) RX3 RX4 4 5 Rx (cos) SIN 14 SINN 13 COS 12 COSN 11 3.3V / 5V Configuration with a single capacitor CT in the LC oscillator. The oscillator frequency is determined by the values of coil L and capacitor CT: ������������ = 1 2����√������������ Where: fTX = Oscillator frequency in MHz L = Coil impedance in µHenry CT = Capacitance in µFarad Figure 2. LC Oscillator Connection with a Single Capacitor |
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