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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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ADAU1781BCPZ Datenblatt(PDF) 10 Page - Analog Devices |
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ADAU1781BCPZ Datenblatt(HTML) 10 Page - Analog Devices |
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10 / 93 page  ADAU1781 Rev. B| Page 9 of 92 TYPICAL POWER MANAGEMENT MEASUREMENTS Master clock = 12.288 MHz, PLL is active in integer mode at a 256 × fS input rate for fS = 48 kHz, analog and digital input tones are −1 dBFS with a frequency of 1 kHz. Analog input and output are simultaneously active. Pseudo differential stereo input is routed to ADCs, and DACs are routed to stereo line output with a 16 kΩ load. ADC input at −1 dBFS, DAC input at 0 dBFS. The speaker output is disabled. The serial port is configured in slave mode. The beep path is disabled. SigmaDSP processing is enabled. Current measurements are given in units of mA rms. Table 4. Mixer Boost and Power Management Conditions Operating Voltage Power Management Mode1 Mixer Boost Mode2 Typical AVDD Current Consumption (mA) Typical ADC THD + N (dB) Typical Line Output THD + N (dB) AVDD = IOVDD = 3.3 V Normal (default) Normal operation 16.84 88.5 93.0 Boost Level 1 16.88 88.5 93.0 Boost Level 2 16.92 88.5 93.0 Boost Level 3 17.00 88.5 93.0 Extreme power saving Normal operation 15.66 88.0 87.5 Boost Level 1 15.68 88.0 87.5 Boost Level 2 15.70 88.0 87.5 Boost Level 3 15.75 88.0 87.5 Enhanced performance Normal operation 17.43 88.5 94.5 Boost Level 1 17.50 88.5 94.5 Boost Level 2 17.53 88.5 94.5 Boost Level 3 17.63 88.5 94.5 Power saving Normal operation 16.25 89.0 90.5 Boost Level 1 16.28 89.0 90.5 Boost Level 2 16.31 89.0 90.5 Boost Level 3 16.38 89.0 90.5 AVDD = IOVDD = 1.8 V Normal (default) Normal operation 15.15 88.5 89.5 Boost Level 1 15.19 88.5 89.5 Boost Level 2 15.23 88.5 89.5 Boost Level 3 15.30 88.5 89.5 Extreme power saving Normal operation 14.03 86.5 85.5 Boost Level 1 14.05 86.5 85.5 Boost Level 2 14.07 86.5 85.5 Boost Level 3 14.12 86.5 85.5 Enhanced performance Normal operation 15.71 88.5 90.5 Boost Level 1 15.76 88.5 90.5 Boost Level 2 15.81 88.5 90.5 Boost Level 3 15.89 88.5 90.5 Power saving Normal operation 14.59 88.0 88.0 Boost Level 1 14.62 88.0 88.0 Boost Level 2 14.65 88.0 88.0 Boost Level 3 14.71 88.0 88.0 1 Set by Register 0x4009, Bits[4:1], and Register 0x4029, Bits[5:2]. 2 Set by Register 0x4009, Bits[6:5]. DIGITAL FILTERS Table 5. Parameter Mode Factor Min Typ Max Unit ADC DECIMATION FILTER All modes, typ value is for 48 kHz Pass Band 0.4375 × f S 21 kHz Pass-Band Ripple ±0.015 dB Transition Band 0.5 × f S 24 kHz Stop Band 0.5625 × f S 27 kHz Stop-Band Attenuation 70 dB Group Delay 22.9844/f S 479 µs |
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Ähnliche Beschreibung - ADAU1781BCPZ |
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