TC9470FN Datasheet | Toshiba

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic 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 pressor 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 mands In parallel control mode, soft mute can be set for the output signal in 64 steps in 23 ms Built-in LR mon digital zero detection output circuit Sampling frequency: 44.1 k Hz 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 ±0.11d B Transient Bandwidth 20 k to 24.1 k Hz Attenuation - 26d B or less DA Converter (VDD = 2.7 V) OSR Standard operation 192 fs Noise Distortion - 82d B (typ.) S/N Ratio 90d B (typ.) 2002-02-27 Pin Connection VDD T1 P/ S 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 LRCK BCK DATA DBB2 ATT (DBB1) SHIFT (EMP) LATCH (SM) VDX XO XI GNDX MCK VDA RO GNDA VR GNDA LO VDA ZD GNDD Block Diagram (DBB1) (EMP) (SM) LRCK BCK DATA DBB2 ATT SHIFT LATCH VDX 24 23 22 21 20 19 18 17 XO 16 XI 15 GNDX MCK 14...