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ADAU1978WBCPZ-RL Datasheet(PDF) 4 Page - Analog Devices |
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ADAU1978WBCPZ-RL Datasheet(HTML) 4 Page - Analog Devices |
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4 / 44 page  ADAU1978 Data Sheet Rev. 0 | Page 4 of 44 POWER SUPPLY SPECIFICATIONS AVDD = 3.3 V, DVDD = 1.8 V, IOVDD = 3.3 V, and fS = 48 kHz (master mode), unless otherwise noted. Table 3. Parameter Test Conditions/Comments Min Typ Max Unit SUPPLY DVDD On-chip low dropout (LDO) regulator 1.62 1.8 1.98 V AVDDx AVDD 3.0 3.3 3.6 V IOVDD IOVDD 1.62 3.3 3.6 V IOVDD CURRENT Master clock = 256 × fS Normal Operation fS = 48 kHz 450 µA fS = 96 kHz 880 µA fS = 192 kHz 1.75 mA Power-Down fS = 48 kHz to 192 kHz 20 µA AVDDx CURRENT Normal Operation 4-channel ADC, DVDD internal 14 mA 4-channel ADC, DVDD external 9.5 mA Power-Down 270 µA DVDD CURRENT Normal Operation DVDD external 4.5 mA Power-Down 65 µA POWER DISSIPATION Normal Operation Master clock = 256 fS, 48 kHz Analog Supply DVDD internal 46.2 mW DVDD external 31 mW Digital Supply DVDD external 8.1 mW Digital I/O Supply IOVDD = 3.3 V 1.49 mW Power-Down, All Supplies 960 µW DIGITAL FILTER SPECIFICATIONS Table 4. Parameter Mode Factor Min Typ Max Unit ADC DECIMATION FILTER All modes, typical at fS = 48 kHz Pass Band 0.4375 × fS 21 kHz Pass-Band Ripple ±0.015 dB Transition Band 0.5 × fS 24 kHz Stop Band 0.5625 × fS 27 kHz Stop-Band Attenuation 79 dB Group Delay fS = 8 kHz to 96 kHz 22.9844/fS 479 µs fS = 192 kHz 35 µs HIGH-PASS FILTER All modes, typical at 48 kHz Cutoff Frequency At −3 dB point 0.9375 Hz Phase Deviation At 20 Hz 10 Degrees Settling Time 1 sec ADC DIGITAL GAIN All modes 0 60 dB Gain Step Size 0.375 dB |
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