مدار مجتمع (آی سی) آی‌سی صوتی ویژه

Product Attributes

Introduction

The TDA7718B is a high performance signal processor specifically designed for car radio applications. The device includes a high performance audioprocessor with fully integrated audio filters and new soft-step architecture. The digital control allows programming in a wide range of filter characteristics.

Features

• Input multiplexer
• QD1: quasi-differential stereo inputs SE1: stereo single-ended input SE2: stereo single-ended input SE3: stereo single-ended input FD full-differential or quasi-differential input
• Loudness
• 2nd order frequency response
• Programmable center frequency (400 Hz / 800 Hz / 2400 Hz)
• 15 dB with 1 dB steps
• Selectable high frequency boost
• Selectable flat-mode (constant attenuation)
• Volume
• +23 dB to -31 dB with 1 dB step resolution
• Soft-step control with programmable blend times
• 2nd order frequency response
• Center frequency programmable in 4 steps (60 Hz / 80 Hz / 100 Hz / 200 Hz)
• Q programmable 1.0/1.25/1.5/2.0
• DC gain programmable -15 dB to 15 dB range with 1 dB resolution
• Middle
• 2nd order frequency response
• Center frequency programmable in 4 steps (500 Hz / 1 kHz / 1.5 kHz / 2.5 kHz)
• Q programmable 0.75/1.0/1.25
• -15 dB to 15 dB range with 1 dB resolution
• Treble
• 2nd order frequency response (10 kHz / 12.5 kHz / 15 kHz / 17.5 kHz)
• Center frequency programmable in 4 steps (10 kHz / 12.5 kHz / 15 kHz / 17.5 kHz)
• -15 dB to 15 dB with 1 dB resolution
• Speaker
• 4 independent soft-step speaker controls
• +15 dB to -79 dB with 1 dB steps
• Direct mute
• Subwoofer
• 2nd order low pass filter with programmable cut off frequency (55 Hz / 85 Hz / 120 Hz / 160 Hz)
• 2 independent soft-step level control, +15 dB to -79 dB with 1 dB steps
• Mute functions
• Direct mute
• Digitally controlled soft-mute with 4 programmable mute-times (0.48 ms/0.96 ms/8 ms/16 ms)
• Offset detection
• Offset voltage detection circuit for on-board power amplifier failure diagnosis