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CS4245 Fiches technique(PDF) 10 Page - Cirrus Logic |
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CS4245 Fiches technique(HTML) 10 Page - Cirrus Logic |
10 / 57 page 10 DS656F2 CS4245 DAC ANALOG CHARACTERISTICS Test Conditions (unless otherwise specified): AGND = DGND = 0 V; VA = 3.13 V to 5.25 V; VD = 3.13 V to 5.25 V or VA + 0.25 V, whichever is less; VLS = VLC = 1.71 V to 5.25 V; TA = -10° to +70° C for Commercial or -40° to +85° C for Automotive; Output test signal: 997 Hz full-scale sine wave; Test load RL = 3 kΩ, CL = 10 pF (see Figure 1), Fs = 48/96/192 kHz. Measurement Bandwidth 10 Hz to 20 kHz Synchronous mode; All Connections as shown in Figure 12 on page 29. 4. One-half LSB of triangular PDF dither added to data. 5. Guaranteed by design. The DC current draw represents the allowed current draw from the AOUT pin due to typical leakage through the electrolytic DC blocking capacitors. Parameter Commercial Grade Automotive Grade Symbol Min Typ Max Min Typ Max Unit Dynamic Performance for VA = 4.75 V to 5.25 V Dynamic Range (Note 4) 18 to 24-Bit A-Weighted unweighted 16-Bit A-Weighted unweighted 98 95 90 87 104 101 96 93 - - - - 96 93 88 85 104 101 96 93 - - - - dB dB dB dB Total Harmonic Distortion + Noise (Note 4) 18 to 24-Bit 0 dB -20 dB -60 dB 16-Bit 0 dB -20 dB -60 dB THD+N - - - - - - -90 -81 -41 -93 -73 -33 -84 - - -87 - - - - - - - - -90 -81 -41 -93 -73 -33 -82 - - -85 - - dB dB dB dB dB dB Dynamic Performance for VA = 3.13 V to 3.46 V Dynamic Range (Note 4) 18 to 24-Bit A-Weighted unweighted 16-Bit A-Weighted unweighted 95 92 88 85 101 98 93 90 - - - - 93 90 86 83 101 98 93 90 - - - - dB dB dB dB Total Harmonic Distortion + Noise (Note 4) 18 to 24-Bit 0 dB -20 dB -60 dB 16-Bit 0 dB -20 dB -60 dB THD+N - - - - - - -87 -78 -38 -90 -70 -30 -79 - - -82 - - - - - - - - -87 -78 -38 -90 -70 -30 -77 - - -80 - - dB dB dB dB dB dB Interchannel Isolation (1 kHz) - 100 - - 100 - dB DC Accuracy Interchannel Gain Mismatch - 0.1 0.25 - 0.1 0.25 dB Gain Drift - 100 - - 100 - ppm/°C Analog Output Full Scale Output Voltage 0.60*VA 0.65*VA 0.70*VA 0.60*VA 0.65*VA 0.70*VA Vpp DC Current draw from an AOUT pin (Note 5) IOUT -- 10 -- 10 μA AC-Load Resistance (Note 6) RL 3- -3- - k Ω Load Capacitance (Note 6) CL - - 100 - - 100 pF Output Impedance ZOUT -150 - - 150- Ω |
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