TDA7415CB STMicroelectronics, TDA7415CB Datasheet - Page 19
TDA7415CB
Manufacturer Part Number
TDA7415CB
Description
IC PROCESSOR CAR SGNL 6CH 64LQFP
Manufacturer
STMicroelectronics
Type
Car Signal Processorr
Datasheet
1.TDA7415CBTR.pdf
(50 pages)
Specifications of TDA7415CB
Applications
DVD
Mounting Type
Surface Mount
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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TDA7415CB
5.2
5.2.1
The CD-Changer- and Auxiliary/Navigation-inputs are quasi-differential inputs, where the
'out-of-phase' or ground signals of both channels share one common input. The Minidisk-
input (MD) may be reconfigured for a true mono differential input as required by many phone
units. Please note that all differential inputs dampen the signal by 3dB.
Additionally, each differential input-pin features a 'fast charge'-switch (*) allowing quickly
charging external, large coupling capacitors upon power-on of the device. For normal
operation, these switches need to be released by programming the corresponding bit.
For programming of the Input-section, see the programming chapter
Main signal processing path
The main-signal-processing path incorporates a classical three-band tone control (bass, mid
and treble) that is preceded by a gain-adjust amplifier and completed by a dedicated room
acoustics notch-filter (Room-EQ, see figure 1) that allows defeating the main car-body
resonance.
Hereafter, the filters composing the tone control and room-EQ will be presented.
Bass filter
There are four parameters programmable in the bass-filter stage.
1.
Figure 4.
Control range:
center frequency.
Bass control range; f
Figure 4
shows the control range in the frequency domain at 60Hz
Doc ID 14100 Rev 3
C
= 60Hz, Q= 1.0
Description of the audio processor
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