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AKD4390 Datasheet(PDF) 7 Page - Asahi Kasei Microsystems |
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AKD4390 Datasheet(HTML) 7 Page - Asahi Kasei Microsystems |
7 / 32 page [AK4390] MS1046-E-00 2009/01 - 7 - ANALOG CHARACTERISTICS (Ta=25 °C; AVDD=VDDL/R=DVDD=5.0V; VSS1 = VSS2 = VSS3 = VSS4 =0V; VREFHL/R=AVDD, VREFLL/R= VSS1=VSS2=VSS3; Input data=24bit; RL ≥ 1kΩ; BICK=64fs; Input Signal Frequency = 1kHz; Sampling Frequency = 44.1kHz; Measurement bandwidth = 20Hz ~ 20kHz; External Circuit: Figure 15; unless otherwise specified.) Parameter min typ max Units Resolution 24 Bits Dynamic Characteristics (Note 5) fs=44.1kHz BW=20kHz 0dBFS −60dBFS −103 −57 93 - dB dB fs=96kHz BW=40kHz 0dBFS −60dBFS −100 −54 - - dB dB THD+N fs=192kHz BW=40kHz BW=80kHz 0dBFS −60dBFS −60dBFS −100 −54 −51 - - - dB dB dB Dynamic Range ( −60dBFS with A-weighted) (Note 6) 114 120 dB S/N (A-weighted) (Note 7) 114 120 dB Interchannel Isolation (1kHz) 110 120 dB DC Accuracy Interchannel Gain Mismatch 0.15 0.3 dB Gain Drift (Note 8) 20 - ppm/ °C Output Voltage (Note 9) ±2.65 ±2.8 ±2.95 Vpp Load Capacitance 25 pF Load Resistance (Note 10)1 k Ω Power Supplies Power Supply Current Normal operation (PDN pin = “H”) AVDD, VDDL/R DVDD (fs ≤ 96kHz) DVDD (fs = 192kHz) 60 43 46 90 - 70 mA mA mA Power down (PDN pin = “L”) (Note 11) AVDD+DVDD 10 100 μA Note 5. Measured by Audio Precision, System Two. Averaging mode. Refer to the evaluation board manual. Note 6. By Figure 15. External LPF Circuit Example 2.101dB for 16-bit data and 118dB for 20-bit data. Note 7. By Figure 15. External LPF Circuit Example 2. S/N does not depend on input word length. Note 8. The voltage on (VREFHL/R − VREFLL/R) is held +5V externally. Note 9. Full-scale voltage(0dB). Output voltage scales with the voltage of (VREFHL/R − VREFLL/R). AOUT (typ.@0dB) = (AOUT+) − (AOUT−) = ±2.8Vpp × (VREFHL/R − VREFLL/R)/5. Note 10. For AC-load. 1.5k Ω for DC-Load Note 11. In the power-down mode. PSN pin = DVDD, and all other digital input pins including clock pins (MCLK, BICK and LRCK) are held VSS4. Note 12. PSR is applied to AVDD, DVDD with 1kHz, 100mVpp. The VREFHL/R pin is held +5V. |
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