CXD2555

® HI2555, CXD2555 NE W DED FOR N E M M O C NOT RE DESIGNS September 1997 1-Bit, AD/DA Converter For Audio Application Features Two-Channel AD/DA Converters and Their Respective Digital Filters for Decimation and Oversampling Into a Single Chip Peripheral Analog Circuits for AD Converter Greatly Reduces External Elements Distortion (Typ) - ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.01% - DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.008% (-3dB) S/N Ratio (Typ) - ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86dB - DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96dB Ripple in the Digital Filter Pass Band . . . . . . . ±0.05dB Attenuation in the Digital Filter Stop Band . . . . . . . .-45dB Description The HI2555, CXD2555 is a 1-bit stereo AD/DA converter featuring a 2nd-order DA system noise shaper. This LSI has also built-in digital filters and provides good cost performance. Functions Data Can Be Input/Output at Rate of 1 x fS with a BuiltIn Digital Filter Simple Connection of Multiple HI2555, CXD2555s Enable Multi-Channel System The 32-Slot Serial Data Interface Enables Independent Selection of Data Frontward Packing/Rearward Packing and MSB First/LSB First The Master Clock is Applicable to Four Sources 256fS, 512fS, 768fS, and 1024fS The Sampling Frequency May be Adjusted to Low fS Frequencies Such as 16kHz or 8kHz, in Addition to Normal On...