TDA7449L STMicroelectronics, TDA7449L Datasheet - Page 5

• Manufacturer Part Number: TDA7449L
• Description: IC PROCESSOR AUDIO DGTL 20-PDIP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7449L

• Applications: TV
• Mounting Type: Through Hole
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TDA7449L
3
APLICATION SUGGESTIONS
The first and the last stages are volume control blocks. The control range is 0 to -47dB (mute) for the first
one, 0 to -79dB (mute) for the last one. Both of them have 1dB step resolution.
The very high resolution allows the implementation of systems free from any noisy acoustical effect. The
TDA7449L audioprocessor provides 2 bands tones control.
3.1 CREF
The suggested 10 F reference capacitor (CREF) value can be reduced to 4.7 F if the application requires
faster power ON.
Figure 5. THD vs. frequency
Figure 7. Channel separation vs. frequency
Figure 6. THD vs. RLOAD
5/14