描述 Description

The TDA7715 is a high performance signal processor specifically designed for car radio applications.
The device includes a high performance audio processor 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

? Input multiplexer
? QD0 to QD3: quasi-differential stereo input
? SE0 to SE4: stereo single-ended 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 –23 dB with 1 dB step resolution
? Soft-step control with programmable blend times
? Bass
? 2nd order frequency response
? Programmable center frequency (60/70/80/100//110/120/130/150 Hz)
? Q programmable 1.0/1.25/1.5/2.0
? DC gain programmable
? -15 to 15 dB range with 1 dB resolution
? Soft-step control with programmable blend times
? Middle
? 2nd order frequency response
? Programmable center frequency (500 Hz/1 kHz/1.5 kHz/2 kHz)
? Q programmable 1.0/2.0
? -15 to 15 dB range with 1 dB resolution
? Soft-step control with programmable blend times
? Treble
? 2nd order frequency response
? Center frequency programmable in 4 steps (10/12.5 /15/17.5 kHz)
? -15 to 15 dB range with 1 dB resolution
? Soft-step control with programmable blend times
? High pass filter
? 2nd order frequency response
? Programmable cut off frequency (50/60/80/100/120/150/180/220 Hz)
? Low pass filter
? 2nd order low pass filter
? Programmable cut off frequency
? (50 Hz/60 Hz/80 Hz/100 Hz/120 Hz)
? Speaker
? 6 independent soft-step speaker controls
? +23 dB to –79 dB with 1 dB steps
? Soft-step control with programmable blend times
? Output driver
? Four dedicated outputs for an internal (on-board) power amplifier.
? Six 3.55 VRMS line-driver outputs for an external (remote) power amplifier
? Mute functions
? Direct mute
? Main/Sub channel: digitally controlled soft-mute with 4 programmable mute-times
? (0.5 ms/4 ms/8 ms/16 ms)
? Speaker: digitally controlled soft-mute with 4 programmable mute-times (4 ms/8 ms/32 ms/64 ms)
? Spectrum analyzer
? 7-band, fully integrated 2nd order band-pass filter with programmable filter quality for different visual behavior
? Selectable In-gain 0/2/4/6dB
? AC coupling
? Three AC-coupling input
? One AC-coupling output
? Offset detection
? Offset voltage detection circuit for on-board power amplifier failure diagnosis

簡(jiǎn)介

TDA7715屬于集成電路（IC）的音頻專(zhuān)用。由制造生產(chǎn)的TDA7715音頻專(zhuān)用音頻專(zhuān)用的半導(dǎo)體器件專(zhuān)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(chē)音頻、消費(fèi)類(lèi)音頻、樂(lè)器、專(zhuān)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。