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AD1981A Datasheet(PDF) 3 Page - Analog Devices |
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AD1981A Datasheet(HTML) 3 Page - Analog Devices |
3 / 24 page REV. 0 –3– AD1981A SPECIFICATIONS Parameter Min Typ Max Unit ANALOG-TO-DIGITAL CONVERTERS Resolution 16 Bits Total Harmonic Distortion (THD) –84 dB Dynamic Range (–60 dB Input THD+N Referenced to Full Scale, A-Weighted) 80 85 dB Signal-to-Intermodulation Distortion (CCIF Method) 1 85 dB ADC Crosstalk 1 Line Inputs (Input L, Ground R, Read R; Input R, Ground L, Read L) –80 dB LINE_IN to Other –100 –80 dB Gain Error 2 (Full-Scale Span Relative to Nominal Input Voltage) ±10 % Interchannel Gain Mismatch (Difference of Gain Errors) ±0.5 dB ADC Offset Error 1 ±5mV DIGITAL-TO-ANALOG CONVERTERS Resolution 20 Bits Total Harmonic Distortion (THD) LINE_OUT –85 dB Total Harmonic Distortion (THD) HP_OUT –75 dB Dynamic Range (–60 dB Input THD+N Referenced to Full Scale, A-Weighted) 85 90 dB Signal-to-Intermodulation Distortion (CCIF Method)1 –100 dB Gain Error (Actual Output Full-Scale Voltage Relative to Nominal Output Full-Scale) ±10 % Interchannel Gain Mismatch (Difference of Gain Errors) ±0.7 dB DAC Crosstalk (Input L, Zero R, Measure R_OUT; Input R, Zero L, Measure L_OUT) 1 –80 dB Total Audible Out-of-Band Energy (Measured from 0.6 × F S to 20 kHz) 1 –40 dB ANALOG OUTPUT Full-Scale Output Voltage; LINE_OUT and MONO_OUT 1 Vrms 2.83 Vp-p Output Impedance 1 800 Ω External Load Impedance 1 10 k Ω Output Capacitance 1 15 pF External Load Capacitance 100 pF Full-Scale Output Voltage; HP_OUT (0 dB Gain) 1 Vrms External Load Capacitance 1 100 pF External Load Impedance 1 32 Ω VREF 2.05 2.25 2.45 V VREFOUT (selectable to 3.70 V nominal) 2.25 V VREFOUT Current Drive 5mA Mute Click (Muted Output Minus Unmuted Midscale DAC Output) ±5mV STATIC DIGITAL SPECIFICATIONS High Level Input Voltage (VIH): Digital Inputs 0.65 × DVDD V Low Level Input Voltage (VIL) 0.35 × DVDD V High Level Output Voltage (VOH), IOH = 2 mA 0.9 × DVDD V Low Level Output Voltage (VOL), IOL = 2 mA 0.1 × DVDD V Input Leakage Current –10 10 µA Output Leakage Current –10 10 µA POWER SUPPLY Power Supply Range – Analog (AVDD) 4.65 5.25 V Power Supply Range – Digital (DVDD) 3.15 3.45 V Power Dissipation – 5 V/3.3 V 555 mW Analog Supply Current – 5 V (AVDD)78 mA Digital Supply Current – 3.3 V(DVDD)50 mA Power Supply Rejection (100 mV p-p Signal @ 1 kHz) 1 (At Both Analog and Digital Supply Pins, Both ADCs and DACs) 40 dB CLOCK SPECIFICATIONS 1 Input Clock Frequency 24.576 MHz Recommended Clock Duty Cycle 40 50 60 % |
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