描述 Description

The TDA7718N 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.

特性 Features

? Offset detectionOffset voltage detection circuit for on-board power amplifier failure diagnosis
? Mute functionsDirect muteDigitally controlled SoftMute with 4 programmable mute-times (0.48 ms/0.96 ms/8 ms/16 ms)
? Speaker4 independent soft step speaker controls+15 dB to -79 dB with 1 dB stepsDirect mute
? Treble2nd 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
? Input multiplexerQD1: quasi-differential stereo inputsSE1: stereo single-ended inputSE2: stereo single-ended inputSE3: stereo single-ended inputFD1 / SE4+SE5: 1 full-differential input or 2 stereo single-ended inputs
? Volume+23 dB to -31 dB with 1 dB step resolutionSoft-step control with programmable blend times
? Loudness2nd order frequency responseProgrammable center frequency (400 Hz / 800 Hz / 2400 Hz)15 dB with 1 dB stepsSelectable high frequency boostSelectable flat-mode (constant attenuation)
? Middle2nd order frequency responseCenter 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
? Subwoofer2nd 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
? Bass2nd order frequency responseCenter frequency programmable in 4 steps (60 Hz / 80 Hz / 100 Hz / 200 Hz)Q programmable 1.0/1.25/1.5/2.0DC gain programmable-15 dB to 15 dB range with 1 dB resolution

簡(jiǎn)介

TDA7718N屬于集成電路（IC）的音頻專用。由制造生產(chǎn)的TDA7718N音頻專用音頻專用的半導(dǎo)體器件專為音頻信號(hào)的濾波、驅(qū)動(dòng)、放大、轉(zhuǎn)換和接口而設(shè)計(jì)。特征包括功能、應(yīng)用、通道數(shù)、接口、電壓和規(guī)格。應(yīng)用包括音頻系統(tǒng)、汽車音頻、消費(fèi)類音頻、樂(lè)器、專業(yè)音頻、通信系統(tǒng)、電信系統(tǒng)、數(shù)字音頻、驅(qū)動(dòng)器、前置放大器、信號(hào)混合、信號(hào)處理、語(yǔ)音觸發(fā)器解決方案和 10 Base-T。