TDA7409D STMicroelectronics, TDA7409D Datasheet - Page 13
TDA7409D
Manufacturer Part Number
TDA7409D
Description
IC PROCESSOR CAR SIGNAL SO-20
Manufacturer
STMicroelectronics
Type
Car Signal Processorr
Datasheet
1.E-TDA7409D.pdf
(25 pages)
Specifications of TDA7409D
Applications
Automotive Systems
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TDA7409D
Manufacturer:
ST
Quantity:
20 000
1.7.4 DC Mode
In this mode the DC-gain is increased by 4.4dB. 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 11. Bass normal and DC Mode @ Gain = 14dB, f
Note: The center frequency, Q and DC-mode can be set fully independently.
1.8 Treble
There are two parameters programmable in the treble stage:
1.8.1 Attenuation
Figure 12 shows the attenuation as a function of frequency at a center frequency of 17.5kHz.
Figure 12. Treble Control @ f
15.0
12.5
10.0
7.5
5.0
2.5
0.0
10.0
C
= 17.5kHz
100.0
C
1.0K
-
= 80Hz
-
10.0K
TDA7409
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