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AD1839A 데이터시트(PDF) 3 Page - Analog Devices |
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AD1839A 데이터시트(HTML) 3 Page - Analog Devices |
3 / 24 page AD1839A Rev. B | Page 3 of 24 SPECIFICATIONS TEST CONDITIONS Supply Voltages 5.0 V (AVDD, DVDD) Ambient Temperature 25°C Input Clock 12.288 MHz (256 × fS mode) DAC Input Signal 1.0078125 kHz, 0 dBFS ADC Input Signal 1.0078125 kHz, −1 dBFS Input Sample Rate (fS) 48 kHz Measurement Bandwidth 0 Hz to 20 kHz Word Width 24 bits Load Capacitance 100 pF Load Impedance 47 kΩ Performance of all channels is identical (except for the Interchannel Gain Mismatch and Interchannel Phase Deviation specifications). Table 1. Parameter Min Typ Max Unit ANALOG-TO-DIGITAL CONVERTERS ADC Resolution 24 Bits Dynamic Range (20 Hz to 20 kHz, –60 dB Input) No Filter 103 dB A-Weighted (48 kHz and 96 kHz) 100 105 dB Total Harmonic Distortion + Noise (THD + N) 48 kHz –95 –88.5 dB 96 kHz –95 –87.5 dB Interchannel Isolation 100 dB Interchannel Gain Mismatch 0.025 dB Analog Inputs Differential Input Range (±Full Scale) –2.828 +2.828 V Common-Mode Input Voltage 2.25 V Input Impedance 4 kΩ Input Capacitance 15 pF VREF 2.25 V DC Accuracy Gain Error ±5 % Gain Drift 35 ppm/°C DIGITAL-TO-ANALOG CONVERTERS DAC Resolution 24 Bits Dynamic Range (20 Hz to 20 kHz, –60 dBFS Input) No Filter 103 105 dB A-Weighted Filter (48 kHz and 96 kHz) 105 108 dB Total Harmonic Distortion + Noise (48 kHz and 96 kHz) –92 –90 dB Interchannel Isolation 110 dB DC Accuracy Gain Error ±4 % Interchannel Gain Mismatch 0.025 dB Gain Drift 200 ppm/°C Interchannel Phase Deviation ±0.1 Degrees Volume Control Step Size (1023 Linear Steps) 0.098 % Volume Control Range (Maximum Attenuation) 60 dB Mute Attenuation –100 dB De-emphasis Gain Error ±0.1 dB Full-Scale Output Voltage at Each Pin (Single-Ended) 1.0 (2.8) V rms (V p-p) Output Resistance at Each Pin 180 Ω Common-Mode Output Voltage 2.25 V |
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