TDA7405 데이터 시트보기 (PDF) - STMicroelectronics

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TDA7405

EQUALIZER CARRADIO SIGNAL PROCESSOR

STMicroelectronics 

TDA7405

EQUALIZER CARRADIO SIGNAL PROCESSOR

1 FEATURES

■ 3 STEREO INPUTS

■ 3 MONO INPUTS

■ DYNAMIC-COMPRESSION-STAGE FOR CD

■ BASS, TREBLE AND LOUDNESS CONTROL

■ EQ-FILTERS FOR SEPARATE FRONT/REAR-

EQUALIZATION

■ VOICE-BAND-FILTER FOR MIXING-CHANNEL

■ DIRECT MUTE AND SOFTMUTE

■ INTERNAL BEEP

■ FOUR INDEPENDENT SPEAKER-OUTPUTS

■ INDEPENDENT SECOND SOURCE-SELECTOR

■ FULL MIXING CAPABILITY

■ PAUSE DETECTOR

1.1 Stereodecoder

■ RDS MUTE

■ NO EXTERNAL ADJUSTMENTS

■ AM/FM NOISEBLANKER WITH SEVERAL

TRIGGER CONTROLS

■ PROGRAMMABLE MULTIPATH DETECTOR

■ QUALITY DETECTOR OUTPUT

Figure 2. BLOCK DIAGRAM

Figure 1. Package

TQFP44

Table 1. Order Codes

Part Number

TDA7405

Package

TQFP44

1.2 Digital control:

■ I2C-BUS INTERFACE

2 DESCRIPTION

The device includes a high performance audioprocessor

and a stereodecoder-noiseblanker combination with the

whole low frequency signal processing necessary for

state-of-the-art as well as future carradios. The digital

control allows a programming in a wide range of all the

filter characteristics. Also the stereodecoder part offers

several possibilities of programming especially for the

adaptation to different IF-devices.

May 2004

REV. 2

1/57

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