DESCRIPTION
The PT2348 is a 4.1CH audio processor designed for Car Audio purpose. Using I2C interface controls all of the functions. Like most of audio processors, it equips up to 4 stereo sources input with adjustable gain, master volume with adaptive loudness, treble and bass tone control. In a car entertainment system where needs front and rear seat individual control, the PT2348 provides
separate input source selection and output volume adjustment; a special design, mixing amp, is very easy to combine the navigation system or cellular phone’s voice with the car audio system.

FEATURES
• Controlled by I2C Interface
• 4 Stereo Inputs (including 1 quasi-differential input) with selectable input gain
• 2 Channels Electronic Volume：+15 to -79dB with 1dB/step
• 1 Subwoofer Output: +15 to -79dB with 1dB/step
• Adjustable crossover frequency for Subwoofer
• Tone Control (Bass and Treble): -15 to +15dB, 1dB/step
• Input Gain Control: 0 to +15dB, 1dB/step
• Loudness: 0 to -15dB, 1dB/step
• 4 independent speaker outputs: +15 to -79dB with 1dB/step & independent programmable mix input with 50% mixing ratio for front speakers
• Low Distortion and Low Noise
• 36-pin SSOP package