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RC19302A00AGNT#BD0 Scheda tecnica(PDF) 23 Page - Renesas Technology Corp |
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RC19302A00AGNT#BD0 Scheda tecnica(HTML) 23 Page - Renesas Technology Corp |
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23 / 62 page  R31DS0210EU0106 Rev.1.06 Page 23 May 11, 2026 RC193xx Datasheet 3. Measured at crossing point where the instantaneous voltage value of the rising edge of CLK equals the falling edge of CLKb. 4. Refers to the total variation from the lowest crossing point to the highest, regardless of which edge is crossing. Refers to all crossing points for this measurement. 5. Defined as the total variation of all crossing voltages of Rising CLK and Falling CLKb. This is the maximum allowed variance in VCROSS for any particular system. 6. Measured from differential waveform. Table 19. 85 ohm CLK AC/DC Characteristics – Double-Terminated, Non-PCIe Applications [1] 1. Both Tx and Rx are terminated (double-terminated) with CL= 2pF. This reduces amplitude by 50%. See Test Loads. Symbol Parameter Conditions Minimum Typical Maximum Unit VOH Output High Voltage [2] 2. Measured from single-ended waveform. VHIGH = 800mV, Fast Slew Rate, 156.25MHz, 312.5MHz - amplitude is reduced by ~50% due to double termination. (Slow slew rate is not recommended for frequencies >100MHz) 382 410 436 mV VOL Output Low Voltage [2] -8 13 33 VCROSS Crossing Voltage (abs) [3] 3. Measured at crossing point where the instantaneous voltage value of the rising edge of CLK equals the falling edge of CLKb. 186 206 226 ΔVCROSS Crossing Voltage (var) [3][4][5] 4. Refers to the total variation from the lowest crossing point to the highest, regardless of which edge is crossing. Refers to all crossing points for this measurement. 5. Defined as the total variation of all crossing voltages of Rising CLK and Falling CLKb. This is the maximum allowed variance in VCROSS for any particular system. -9 8 25 tR Rise Time [2] VT = 20% to 80% of swing 256 368 491 ps tF Fall Time [2] VT = 20% to 80% of swing 225 307 417 ps VOH Output High Voltage [2] VHIGH = 900mV, Fast Slew Rate, 156.25MHz, 312.5MHz - amplitude is reduced by ~50% due to double termination. (Slow slew rate is not recommended for frequencies >100MHz) 415 448 480 mV VOL Output Low Voltage [2] -6 14 35 VCROSS Crossing Voltage (abs) [3] 192 216 239 ΔVCROSS Crossing Voltage (var) [3][4][5] -9 8 27 tR Rise Time [2] VT = 20% to 80% of swing 289 418 558 ps tF Fall Time [2] VT = 20% to 80% of swing 227 302 406 ps tDC Output Duty Cycle [6] 6. Measured from differential waveform. Across all settings in this table, VT = 0V. 48.6 49.6 50.5 % Table 20. 100 ohm CLK AC/DC Characteristics – Double-Terminated, Non-PCIe Applications [1] Symbol Parameter Conditions Minimum Typical Maximum Unit VOH Output High Voltage [2] VHIGH = 800mV, Fast Slew Rate, 156.25MHz, 312.5MHz - amplitude is reduced by ~50% due to double termination. (Slow slew rate is not recommended for frequencies > 100MHz) 399 428 456 mV VOL Output Low Voltage [2] -7 13 34 VCROSS Crossing Voltage (abs) [3] 200 228 256 ΔVCROSS Crossing Voltage (var) [3][4][5] -12 7 30 tR Rise Time [2] VT = 20% to 80% of swing 196 272 358 ps tF Fall Time [2] VT = 20% to 80% of swing 214 293 388 ps |
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