TDA7419TR STMicroelectronics, TDA7419TR Datasheet - Page 22

• Manufacturer Part Number: TDA7419TR
• Description: IC PROCESSOR CAR AUD 3BAND 28SOI
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7419TR

• Applications: Radio
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Description of the audio processor
4.6.4
4.7
4.7.1
22/40
DC mode
It is used for cut only for shelving filter. In this mode the DC gain is increased by 4.4 dB. In
addition the programmed center frequency and quality factor is decreased by 25 % which
can be used to reach alternative center frequencies or quality factors.
Figure 12. Bass normal and DC mode @ gain = 14 dB, f
1. The center frequency, Q and DC-mode can be set fully independently.
Middle
There are three parameters programmable in the middle stage:
Attenuation
Figure 13
Figure 13. Middle control @ f
shows the attenuation as a function of frequency at a center frequency of 1 kHz.
15.0
12.5
10.0
7.5
5.0
2.5
0.0
10.0
100.0
C
= 1 kHz, Q = 1
1.0K
C
= 80 Hz
10.0K
TDA7419