TDA7417 STMicroelectronics, TDA7417 Datasheet - Page 16

• Manufacturer Part Number: TDA7417
• Description: IC PROCESSOR CAR SIGNAL 32-TQFP
• Manufacturer: STMicroelectronics
• Type: Audio Processorr

Specifications of TDA7417

• Applications: Radio
• Mounting Type: Surface Mount
• Package / Case: 32-TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Description of the audioprocessor
4.5
16/34
Multistep and Softstep Volume
When the volume-level is changed audible clicks could appear at the output. The root cause
of those clicks
could either be a DC-Offset before the volume-stage or the sudden change of the envelope
of the audio signal. With the Multistep and Softstep feature both kinds of clicks could be
reduced to a minimum and are no more audible. Multistep feature supports N dB change,
each step is 1dB;During 1dB transition, it will have 32 divisions if choosing softstep. The
blend-time from one step to the next is user selectable.
Figure 8.
(2dB)
Multi Step (M.S.)
1dB
NdB
Soft Step and Multi Step timing
Blend
Time
1dB
Soft Step (S.S.)
Blend
Time
32 divisions
Multi Soft Step (M.S.S.)
1dB
NdB
Blend
Time
32 divisions
TDA7417
AC00062