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AD1988AJCPZ Folha de dados(PDF) 4 Page - Analog Devices |
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AD1988AJCPZ Folha de dados(HTML) 4 Page - Analog Devices |
4 / 20 page AD1988A/AD1988B Rev. 0 | Page 4 of 20 SPECIFICATIONS TEST CONDITIONS Test Conditions for the AD1988A and AD1988B are as follows, unless otherwise noted. Analog Input/Output Conditions Temperature at 25°C Digital supply (DVDD) at 3.3 V ±10% Analog supply (AVDD) at 3.3 V ±5% MIC_BIAS_FILT at 5.0 V ±5% Sample rate (FS) at 48 kHz Input signal at 1008 Hz Analog output pass band at 20 Hz to 20 kHz DAC Conditions Calibrated Output −3 dB relative to full scale 10 kΩ output load: line out tests 32 Ω output load: headphone tests ADC Conditions Calibrated 0 db PGA gain Input −3.0 dB relative to full scale Table 1. Typ Parameter Conditions/Comments Min AD1988A/ AD1988B Max Unit DIGITAL DECIMATION AND INTERPOLATION FILTERS1 fS 8 kHz ~ 192 kHz Pass Band 0 0.40 fS Hz Pass-Band Ripple ±0.005 dB Stop Band 0.60 fS Hz Stop Band Rejection −100 dB Group Delay 20 1/fS Group Delay Variation over Pass Band 0 μs ANALOG-TO-DIGITAL CONVERTERS Resolution1 24 Bits Gain Error Full-scale span relative to nominal input voltage ±10 % Interchannel Gain Mismatch Difference of gain errors ±0.2 ±0.5 dB ADC Offset Error ±5 mV ADC Crosstalk1 Line Inputs Input L, Ground R, Read R; Input R, Ground L, Read L −85 dB LINE_IN to Other −100 −80 dB DIGITAL-TO-ANALOG CONVERTERS Resolution1 24 Bits Gain Error Full-scale span relative to nominal input voltage ±10 % Interchannel Gain Mismatch Difference of gain errors ±0.2 ±0.5 dB Total Out-of-Band Energy 1 To 100 kHz −85 dB DAC Crosstalk1 Input L, Zero R, Read R; Input R, Zero L, Read L −95 dB DAC VOLUMES—PROGRAMMABLE GAIN ATTENUATOR Step Size DAC_0, DAC_1, DAC_2, DAC_3, DAC_4 +1.5 dB Output Gain/Attenuation Range −58.5 0 dB ADC VOLUMES—PROGRAMMABLE GAIN AMPLIFIER/ATTENUATOR Step Size ADCSEL_0, ADCSEL_1, ADCSEL_2 +1.5 dB PGA Gain/Attenuation Range −58.5 +22.5 dB ANALOG MIXER—PROGRAMMABLE GAIN AMPLIFIER/ATTENUATOR Signal-to-Noise Ratio (SNR)1, 2 Input to output (including CD in) 95/96 Step Size All mixer inputs +1.5 dB Input Gain/Attenuation Range All mixer inputs −34.5 +12.0 dB |
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