PT12913 Datasheet | PTC

DESCRIPTION The PT12913 is a 2 band audio signal processor specially designed for car radio applications. The device includes a high performance audio processor with fully integrated audio filters. The digital control allows programming in a wide range of filter characteristics. APPLICATION - Car Audio System BLOCK DIAGRAM FEATURES - 3 SE stereo inputs and 1 Quasi-Differential input with selectable input gain - Input gain control: 0 to +20d B, 1d B/step - 2 channels electronic volume with soft step function: +15 to -79d B with 1d B/step - Soft mute - Tone control (Bass and Treble): -20 to +20d B, 1d B/step with softstep . Bass: f0=100Hz, Q=1.0 . Treble: f0=10KHz, Q=1.25 - Loudness: 0 to 20d B, 1d B/step with softstep function. - 4 independent speaker outputs with softstep volume: +15 to -79d B with 1d B/step - Controlled by I2C BUS interface - Low distortion and low noise - 20-pin SSOP package SE1L 2 SE1R 3 SE2L 4 SE2R 5 SE3L 6 SE3R 7 Mute Input Gain Soft-step Loudness Soft-Mute Soft-step Volume Soft-step 2 Band EQ (Tone Control) INPUT MULTIPLEXER Soft-step Mono Fader 16 OUTLF Soft-step Mono Fader Soft-step Mono Fader Soft-step Mono Fader 15 OUTRF 14 OUTLR 13 OUTRR DIFFL 8 DIFFG 9 DIFFR 10 SUPPLY 20 1 GND CREF DIGITAL...