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Group:Electronics > Components > Integrated circuits >
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NJU7505.pdfNJU7505 PPRELIMINARY BAND PASS FILTER FOR AUDIO SPECTRUM ANALYZER DISPLAY s GENERAL DESCRIPTION The NJU7505 is a band pass filter for audio spectrum analyzer display. It consists of high and low band pass filters, CR oscillation circuit, control circuit and DC transfer circuit. Each band pass filter using the switched capacitor filter technology operates at the shared time by 5 bands which filter constant is switched by the internal clock. Therefore, the audio signal shared of 5 bands is output from a serial output terminal. The 10 band version using the double by the cascade connection is prepared. s PACKAGE OUTLINE NJU7505XD NJU7505XM s FEATURES q BPF for the audio spectrum analyzer display of the 5 bands q 10 bands extension is available by the cascade connection (Version of A: For 5-band application by the single) (Version of B: For 10-band application by the double) q BPF using the switched capacitor filter technology q CR oscillation circuit on chip (External clock input is a

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