전자부품 데이터시트 검색엔진 |
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BA338 데이터시트(PDF) 4 Page - Rohm |
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BA338 데이터시트(HTML) 4 Page - Rohm |
4 / 7 page 729 Audio ICs BA336 / BA338 / BA338L FCircuit operation The BA336 / BA338 / BA338L operates according to the timing shown in Fig. 2. When the input signal is below the input decision level, the electrical potential of Pin 2 begins to rise according to the time constant set by CD and RD. When it reaches 1 / 2 of VCC, the comparator which sets the mute detection time inverts. At this point the potential of Pin 1 begins to rise according to the time constant set by CW and RW, and when it reaches 1 / 2 of VCC, the pulse width comparator inverts. During the inter- val from the inverting of the mute detection time comparator to the inverting of the pulse width compara- tor, the output is high. When the power is turned on or muting is turned off, a reset pulse is generated for a cer- tain period of time (determined by the Pin 6 capacitor), the internal flip-flop resets, and an output pulse is not generated. When an input signal comes in after this, the flip-flop resets, mute detection goes on standby, and an output pulse is obtained with each song gap.If the mute time is TM, the song detection time TD and the output pulse width TW must be selected so that TD ) TW < TM. Furthermore, TD must be made longer than any periods of silence in songs. |
유사한 부품 번호 - BA338 |
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유사한 설명 - BA338 |
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