ST TDA7438

音调处理器汽车音频，消费类音频2I²C6V ~ 10.2V

Overview

INPUT MULTIPLEXER– 3 STEREO INPUTS– SELECTABLE INPUT GAIN FOR OPTIMALADAPTATION TO DIFFERENT SOURCES■ ONE STEREO OUTPUT■ TREBLE, MIDDLE AND BASS CONTROL IN2.0dB STEPS■ VOLUME CONTROL IN 1.0dB STEPS■ TWO SPEAKER ATTENUATORS:– TWO INDEPENDENT SPEAKER CONTROLIN 1.0dB STEPS FOR BALANCE FACILITY– -INDEPENDENT MUTE FUNCTION■ ALL FUNCTION ARE PROGRAMMABLE VIASERIAL BUS

2 DESCRIPTIONThe TDA7438 is a volume tone (bass, middle andtreble) balance (Left/Right) processor for qualityaudio applications in car-radio and Hi-Fi Systems.Selectable input gain is provided. Control of all thefunctions is accomplished by serial bus.The AC signal setting is obtained by resistor networksand switches combined with operationalamplifiers.Thanks to the used BIPOLAR/CMOS Technology,Low Distortion, Low Noise and DC stepping areobtained.

Features

Tube Package
With 28-DIP (0.600, 15.24mm) channels
operate temperature at the range of 0°C~70°C TA
consumer IC type: TONE CONTROL CIRCUIT

Through Hole Mounting Type

Applications

There are a lot of STMicroelectronics
TDA7438 Audio Special Purpose applications.

• Recording Systems
• High-End Audio/Sound Card for PC
• Replacement of DIR1703
• Other Applications Requiring S/PDIF Receiver
• Audio Differential Line Drivers
• Audio Mix Consoles
• Distribution Amplifiers
• Graphic and P arametric Equalizers
• Dynamic Range Processors
• Digital Effects Processors