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AD1939WBSTZ 데이터시트(PDF) 6 Page - Analog Devices |
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AD1939WBSTZ 데이터시트(HTML) 6 Page - Analog Devices |
6 / 32 page AD1939 Data Sheet Rev. E | Page 6 of 32 DIGITAL FILTERS Table 6. Parameter Mode Factor Min Typ Max Unit ADC DECIMATION FILTER All modes, typical @ 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 22.9844/fS 479 µs DAC INTERPOLATION FILTER Pass Band 48 kHz mode, typical @ 48 kHz 0.4535 fS 22 kHz 96 kHz mode, typical @ 96 kHz 0.3646 fS 35 kHz 192 kHz mode, typical @ 192 kHz 0.3646 fS 70 kHz Pass-Band Ripple 48 kHz mode, typical @ 48 kHz ±0.01 dB 96 kHz mode, typical @ 96 kHz ±0.05 dB 192 kHz mode, typical @ 192 kHz ±0.1 dB Transition Band 48 kHz mode, typical @ 48 kHz 0.5 fS 24 kHz 96 kHz mode, typical @ 96 kHz 0.5 fS 48 kHz 192 kHz mode, typical @ 192 kHz 0.5 fS 96 kHz Stop Band 48 kHz mode, typical @ 48 kHz 0.5465 fS 26 kHz 96 kHz mode, typical @ 96 kHz 0.6354 fS 61 kHz 192 kHz mode, typical @ 192 kHz 0.6354 fS 122 kHz Stop-Band Attenuation 48 kHz mode, typical @ 48 kHz 70 dB 96 kHz mode, typical @ 96 kHz 70 dB 192 kHz mode, typical @ 192 kHz 70 dB Group Delay 48 kHz mode, typical @ 48 kHz 25/fS 521 µs 96 kHz mode, typical @ 96 kHz 11/fS 115 µs 192 kHz mode, typical @ 192 kHz 8/fS 42 µs TIMING SPECIFICATIONS −40°C < TA < +105°C, DVDD = 3.3 V ± 10%. Table 7. Parameter Condition Comments Min Max Unit INPUT MASTER CLOCK (MCLK) AND RESET tMH MCLK duty cycle DAC/ADC clock source = PLL clock @ 256 fS, 384 fS, 512 fS, and 768 fS 40 60 % tMH DAC/ADC clock source = direct MCLK @ 512 fS (bypass on-chip PLL) 40 60 % fMCLK MCLK frequency PLL mode, 256 fS reference 6.9 13.8 MHz fMCLK Direct 512 fS mode 27.6 MHz tPDR Low 15 ns tPDRR Recovery Reset to active output 4096 tMCLK PLL Lock Time MCLK and LRCLK input 10 ms 256 fS VCO Clock, Output Duty Cycle, MCLKO/XO Pin 40 60 % |
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