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Консультация № 202833
17.05.2022, 22:17
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Уважаемые эксперты! Пожалуйста, ответьте на вопрос:
Источник сигнала - микрофон с выходным сопротивлением 200 Ом, создает
на холостом ходу сигнал с эффективным напряжением 300 мкВ в полосе частот 0-15 кГц.
Какой коэффициент шума (дБ) должен обеспечить микрофонный усилитель, чтобы
отношение сигнал/шум на выходе было не менее 60 дБ?
Источник сигнала - микрофон с выходным сопротивлением 200 Ом, создает
на холостом ходу сигнал с эффективным напряжением 300 мкВ в полосе частот 0-15 кГц.
Какой коэффициент шума (дБ) должен обеспечить микрофонный усилитель, чтобы
отношение сигнал/шум на выходе было не менее 60 дБ?
Обсуждение
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