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CS5463 Folha de dados(PDF) 8 Page - Cirrus Logic |
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CS5463 Folha de dados(HTML) 8 Page - Cirrus Logic |
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8 / 46 page  CS5463 8 DS678F2 ANALOG CHARACTERISTICS (Continued) Notes: 3. Applies before system calibration. 4. All outputs unloaded. All inputs CMOS level. 5. Measurement method for PSRR: VREFIN tied to VREFOUT, VA+ = VD+ = 5 V, a 150 mV (zero-to-peak) (60 Hz) sinewave is imposed onto the +5 V DC supply voltage at VA+ and VD+ pins. The “+” and “-” input pins of both input channels are shorted to AGND. Then the CS5463 is commanded to continuous conversion acquisition mode, and digital output data is collected for the channel under test. The (zero-to-peak) value of the digital sinusoidal output signal is determined, and this value is converted into the (zero-to-peak) value of the sinusoidal voltage (measured in mV) that would need to be applied at the channel’s inputs, in order to cause the same digital sinusoidal output. This voltage is then defined as Veq. PSRR is then (in dB): 6. When voltage level on PFMON is sagging, and LSD bit = 0, the voltage at which LSD is set to 1. 7. If the LSD bit has been set to 1 (because PFMON voltage fell below PMLO), this is the voltage level on PFMON at which the LSD bit can be permanently reset back to 0. Parameter Symbol Min Typ Max Unit Analog Inputs (Voltage Channel) Differential Input Range [(VIN+) - (VIN-)] VIN - 500 - mVP-P Total Harmonic Distortion THD 65 75 - dB Crosstalk with Current Channel at Full Scale (50, 60 Hz) - -70 - dB Input Capacitance All Gain Ranges IC - 0.2 - pF Effective Input Impedance EII 2 - - M Ω Noise (Referred to Input) NV -140- µVrms Offset Drift (Without the High Pass Filter) OD - 16.0 - µV/°C Gain Error (Note 3) GE - ±3.0 % Temperature Channel Temperature Accuracy T - ±5 - °C Power Supplies Power Supply Currents (Active State) IA+ ID+ (VA+ = VD+ = 5 V) ID+ (VA+ = 5 V, VD+ = 3.3 V) PSCA PSCD PSCD - - - 1.1 2.9 1.7 - - - mA mA mA Power Consumption Active State (VA+ = VD+ = 5 V) (Note 4) Active State (VA+ = 5 V, VD+ = 3.3 V) Stand-by State Sleep State PC - - - - 21 11.6 8 10 29 17.5 - - mW mW mW µW Power Supply Rejection Ratio (50, 60 Hz) (Note 5) Voltage Channel Current Channel PSRR 45 70 - 65 75 - - - dB dB PFMON Low-voltage Trigger Threshold (Note 6) PMLO 2.3 2.45 - V PFMON High-voltage Power-on Trip Point (Note 7) PMHI - 2.55 2.7 V PSRR 20 150 V eq ---------- log ⋅ = |
Nº de peça semelhante - CS5463_08 |
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Descrição semelhante - CS5463_08 |
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