TDA7718B数据手册集成电路（IC）的音频专用规格书PDF

描述 Description

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.

特性 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
•2ndorder 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
• Bass
•2ndorder 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
•2ndorder 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
•2ndorder 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
•2ndorder 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

简介

TDA7718B属于集成电路（IC）的音频专用。由制造生产的TDA7718B音频专用音频专用的半导体器件专为音频信号的滤波、驱动、放大、转换和接口而设计。特征包括功能、应用、通道数、接口、电压和规格。应用包括音频系统、汽车音频、消费类音频、乐器、专业音频、通信系统、电信系统、数字音频、驱动器、前置放大器、信号混合、信号处理、语音触发器解决方案和 10 Base-T。