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CXD2724AQ-3 Datasheet(PDF) 9 Page - Sony Corporation |
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CXD2724AQ-3 Datasheet(HTML) 9 Page - Sony Corporation |
9 / 65 page – 9 – CXD2724AQ-3 1-2. When Pro Logic mode is off Unless otherwise specified, the measurement conditions are as given below. • VIN (L, R, C, S) = 2.0Vrms (= 0dB) • fIN = 1kHz L, R C, S (all) L, R C, S L, R C, S (all) (all) 1.7 97 90 0.03 0.004 0.01 93 83 1.33 1.85 1.00 2.0 dB % dB Vrms Vrms S/N ratio THD + N∗11 Dynamic range∗12 ADC maximum input level∗13 Output level∗14 EIAJ (with "A" weighting filter) EIAJ (0dB) EIAJ (–3dB) EIAJ (–60dB) (Full-scale output) ∗11 See Graphs 1a and 1b. ∗12 THD + N during –60 dB input ∗13 The analog input level at which the ADC outputs full scale varies according to supply voltage AVDn. When supply voltage AVDn contains deviation, calculate the maximum input level from (Formula 1) below and adjust the level with the ADC front-end prefilter, etc., so that the waveform is not clipped at the minimum voltage. ADC maximum input level [Vrms] = 1.33 [Vrms] × (Formula 1) ∗14 Like the ADC, the DAC conversion gain also varies according to supply voltage AVDn. However, the DAC has the reverse characteristics of the ADC, so the total gain between the ADC and DAC is constant. Minimum supply voltage [V] 5.0 [V] –60 –50 –40 –30 –20 –10 0 0.001 0.01 0.1 1 10 Graph 1a. L, R Channel Characteristics Analog input level [dB] 0dB = 2Vrms fin = 1kHz –60 –50 –40 –30 –20 –10 0 0.001 0.01 0.1 1 10 Graph 1b. C, S Channel Characteristics Analog input level [dB] 0dB = 2Vrms fin = 1kHz Channels Min. Typ. Max. Unit Item Measurement conditions |
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