TC9470FN

TC9470FN TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC9470FN Σ-∆ Modulation DA Converter with Built-in 8-Times Oversampling Digital Filter/Dynamic Digital Bass Boost/Analog Filter The TC9470FN is a second-order Σ-∆ modulation system 1-bit DA converter incorporating an 8-times oversampling digital filter, dynamic digital bass boost function for use with compressor operations and an analog filter developed for digital audio equipment. Because the IC includes an analog filter, it can output a direct analog waveform, thus reducing the size and cost of the DA converter. Features · · · · · · · · · · · · · Built-in 8-times oversampling digital filter Low-voltage operations (2.4 V) possible Built-in digital de-emphasis filter Built-in dynamic digital bass boost function In serial control mode, output amplitude can be set in 4096 steps of resolution using microcontroller commands In parallel control mode, soft mute can be set for the output signal in 64 steps in 23 ms Built-in LR common digital zero detection output circuit Sampling frequency: 44.1 kHz Supports 384 fs/256 fs (automatic switching) DA converter oversampling ratio (OSR): 192 fs (at 384 fs) Stereo/monaural output selection possible Built-in third-order analog filter The digital filter and DA converter characteristics are shown on the next page Weight: 0.14 g (typ.) Digital Filter Digital Filter Standard operation 8 fs Passband Ripple ±0.11dB Transient Bandwidth 20 k to 24.1 kHz Attenuation −26dB or less...