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PT2353H Datasheet(PDF) 8 Page - Princeton Technology Corp |
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PT2353H Datasheet(HTML) 8 Page - Princeton Technology Corp |
8 / 17 page Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw PT2353H V1.1 - 8 - November, 2005 Satellite + Subwoofer 3-Speaker System Electronics Crossover IC PT2353H FILTER The main channel of PT2353H includes the high pass filter which is used to filter out the main speaker’s low frequency characteristics. The filtered signal is then combined with the subwoofer low pass filter characteristics. This High Pass Filter is of Sallen Key Type with a pass band gain equivalent to 0dB. Adjustment of the crossover frequency is made via the two external capacitors. Please refer to the figure below. REF LOUT/ROUT C C CL2 CL3 CL1 Signal IN - + Subwoofer channel mixed from the Main Channel also uses the Sallen Key Type Low Pass Filter to filter out the high frequency characteristics. Two external capacitors can be used to adjust the crossover frequency. Please refer to the diagram below. SOUT C1 C2 Signal IN REF The subwoofer in this 3-speaker system has only one channel output; therefore, it is recommended that the LPF must be less than 300Hz. If the frequency is greater than 300Hz, then the audio output is can be clearly discernible. That is, it is easy to know where the sound is coming from. The following diagram provides the suggested crossover frequencies and respective external capacitors. |
Similar Part No. - PT2353H_10 |
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Similar Description - PT2353H_10 |
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