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9ZXL1950 Datenblatt(PDF) 7 Page - Integrated Device Technology |
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9ZXL1950 Datenblatt(HTML) 7 Page - Integrated Device Technology |
7 / 18 page REVISION E 11/20/15 7 19-OUTPUT DB1900Z LOW-POWER DERIVATIVE W/85OHM TERMINATIONS 9ZXL1950 DATASHEET Electrical Characteristics–DIF 0.7V Low Power Differential Outputs Clock Periods–Differential Outputs with Spread Spectrum Disabled Clock Periods–Differential Outputs with Spread Spectrum Enabled TA = TCOM; Supply Voltage VDD/VDDA = 3.3 V +/-5%, VDDIO = 1.05 to 3.3V +/-5%. See Test Loads for Loading Conditions PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS NOTES Slew rate Trf Scope averaging on 1.5 2.7 4 V/ns 1, 2, 3 Slew rate matching ∆Trf Slew rate matching. 8.8 20 % 1, 2, 4 Voltage High VHigh 660 787 850 Voltage Low VLow -150 33 150 Max Voltage Vmax 845 1150 Min Voltage Vmin -300 9 Crossing Voltage (abs) Vcross_abs Scope averaging off 250 471 550 mV 1, 5 Crossing Voltage (var) ∆-Vcross Scope averaging off 14 140 mV 1, 6 2 Measured from differential waveform 3 Slew rate is measured through the Vswing voltage range centered around differential 0V. This results in a +/-150mV window around differential 0V. 4 Matching applies to rising edge rate for Clock and falling edge rate for Clock#. It is measured using a +/-75mV window centered on the average cross point where Clock rising meets Clock# falling. The median cross point is used to calculate the voltage thresholds the oscilloscope is to use for the edge rate calculations. 5 Vcross is defined as voltage where Clock = Clock# measured on a component test board and only applies to the differential rising edge (i.e. Clock rising and Clock# falling). 6 The total variation of all Vcross measurements in any particular system. Note that this is a subset of Vcross_min/max (Vcross absolute) allowed. The intent is to limit Vcross induced modulation by setting ∆-Vcross to be smaller than Vcross absolute. Statistical measurement on single-ended signal using oscilloscope math function. (Scope averaging on) mV Single ended signal using absolute value. Includes 300mV of over/undershoot. (Scope mV 1Guaranteed by design and characterization, not 100% tested in production. C L = 2pF with Zo = 85Ω differential trace impedance. 1 Clock 1us 0.1s 0.1s 0.1s 1us 1 Clock -c2c jitter AbsPer Min -SSC Short-Term Average Min - ppm Long-Term Average Min 0 ppm Period Nominal + ppm Long-Term Average Max +SSC Short-Term Average Max +c2c jitter AbsPer Max 100.00 9.94900 9.99900 10.00000 10.00100 10.05100 ns 1,2,3 133.33 7.44925 7.49925 7.50000 7.50075 7.55075 ns 1,2,4 SSC OFF Center Freq. MHz DIF Measurement Window Units Notes 1 Clock 1us 0.1s 0.1s 0.1s 1us 1 Clock -c2c jitter AbsPer Min -SSC Short-Term Average Min - ppm Long-Term Average Min 0 ppm Period Nominal + ppm Long-Term Average Max +SSC Short-Term Average Max +c2c jitter AbsPer Max 99.75 9.94906 9.99906 10.02406 10.02506 10.02607 10.05107 10.10107 ns 1,2,3 133.00 7.44930 7.49930 7.51805 7.51880 7.51955 7.53830 7.58830 ns 1,2,4 Notes: 1 Guaranteed by design and characterization, not 100% tested in production. 3 Driven by SRC output of main clock, 100 MHz PLL Mode or Bypass mode 4 Driven by CPU output of main clock, 133 MHz PLL Mode or Bypass mode Measurement Window Units SSC ON Center Freq. MHz 2 All Long Term Accuracy specifications are guaranteed with the assumption that the input clock complies with CK420BQ/CK410B+ accuracy requirements (+/-100ppm). The 9ZXL1950 itself does not contribute to ppm error. DIF Notes |
Ähnliche Teilenummer - 9ZXL1950_15 |
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Ähnliche Beschreibung - 9ZXL1950_15 |
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