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CXD2755Q
Super Audio CD Format Book ANNEX D&E Conformal Metering
Description The CXD2755Q is the signal processor for signal level measurement of DSD (Direct Stream Digital) conformed to ANNEX D&E of Super Audio CD Format Book V1.2. This LSI can measure up to 8 channel DSD signals to detect the maximum level of each frequency band specified in ANNEX D&E of Super Audio CD format and output the peak values of every 44.1kHz cycle for the signal level measurement and display. Functions • Up to 8 channels of 1bit, 2.8224MHz (44.1kHz × 64) DSD input supported. • MaxPeak measurement (ANNEX D3): 28-tap 1st-order moving average filter is used for MaxPeak level measurement. • DC removal filter: DC removal filter (fc = about 0.1Hz) is inserted to HF/MF/LF filters.