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AD1837A 데이터시트(PDF) 2 Page - Analog Devices |
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AD1837A 데이터시트(HTML) 2 Page - Analog Devices |
2 / 24 page REV. A –2– AD1837A–SPECIFICATIONS Performance of all channels is identical (exclusive of the Interchannel Gain Mismatch and Interchannel Phase Deviation specifications). 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 With A-Weighted (48 kHz and 96 kHz) 100 105 dB Total Harmonic Distortion + Noise (THD + N) fS = 48 kHz –95 –88.5 dB fS = 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 k W Input Capacitance 15 pF VREF 2.25 V DC Accuracy Gain Error ±5% Gain Drift 35 ppm/ºC DIGITAL-TO-ANALOG CONVERTERS DAC Resolution 24 Bits Dynamic Range (20 Hz to 20 kHz, –60 dBFS Input) No Filter 103 105 dB With A-Weighted Filter (48 kHz and 96 kHz) 105 108 dB Total Harmonic Distortion + Noise (48 kHz and 96 kHz) –92 dB Interchannel Isolation 100 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 W Common-Mode Output Voltage 2.25 V ADC DECIMATION FILTER, 48 kHz * Pass Band 21.77 kHz Pass-Band Ripple ±0.01 dB Stop Band 26.23 kHz Stop-Band Attenuation 120 dB Group Delay 910 ms TEST CONDITIONS Supply Voltages (AVDD, DVDD) 5.0 V Ambient Temperature 25 ∞C Input Clock 12.288 MHz, (256 fS Mode) ADC Input Signal 1.0078125 kHz, –1 dBFS (Full Scale) DAC Input Signal 1.0078125 kHz, 0 dBFS (Full Scale) Input Sample Rate (fS) 48 kHz Measurement Bandwidth 20 Hz to 20 kHz Word Width 24 Bits Load Capacitance 100 pF Load Impedance 47 k W |
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