PT12919
PT12919 is 3 Band Car Audio Processor manufactured by PTC.
DESCRIPTION
The PT12919 is a 3 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
FEATURES
- 4 stereo inputs (including 1 quasi-differential input) with selectable input gain
- Input Gain Control: 0 to +15d B, 1d B/step
PT12919 3 Band Car Audio Processor
- Car Audio System
- 2 channels electronic volume with soft step function: +15 to -79d B with 1d B/step
- Direct mute and soft mute
- 1 subwoofer output with soft step: +15 to -79d B with 1d B/step
- Adjustable crossover frequency for subwoofer
- Tone control (Bass、Middle and Treble): -15 to
+15d B, 1d B/step
- Loudness: 0 to -15d B, 1d B/step
- 4 independent speaker outputs with soft step volume: +15 to -79d B with 1d B/step & independent programmable mix input with 50% mixing ratio for front speakers
- 7 band spectrum analyzer
- Controlled by I2C BUS Interface
- Low distortion and low noise
- 28-pin SOP package
BLOCK DIAGRAM
SAOUT
SAIN
Spectrum Analyzer
MUTE
ACOUTL/ ACOUTR/ AC2OUTL AC2OUTR
ACINL/ ACINR/ FILOL FILOR
In Gain Auto Zero
DIFFL 11 DIFFG 12 DIFFR 13 SE1L 9 SE1R 10 SE2L 7 SE2R 8
INPUT MULTIPLEXER
In Gain
Bass
Middle
Treble Soft Step Volume Soft...
