参数资料
型号: TDA7417
厂商: STMICROELECTRONICS
元件分类: 音频控制
英文描述: 1 CHANNEL(S), EQUALIZER CIRCUIT, PQFP32
封装: 7 X 7 MM, 1.40 MM HEIGHT, LEAD FREE, TQFP-44
文件页数: 8/34页
文件大小: 438K
代理商: TDA7417
Description of the audioprocessor
TDA7417
4.5
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.
Soft Step and Multi Step timing
Soft Step (S.S.)
32 divisions
1dB
Blend
Time
Multi Step (M.S.)
NdB
1dB
(2dB)
Blend
Time
Multi Soft Step (M.S.S.)
NdB
1dB
32 divisions
Blend
Time
AC00062
相关PDF资料
PDF描述
TDA7418TR SPECIALTY CONSUMER CIRCUIT, PDSO20
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