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NJU7505AM
NJU7505A BAND PASS FILTER FOR AUDIO SPECTRUM ANALYZER DISPLAY PACKAGE OUTLINE GENERAL DESCRIPTION The NJU7505A 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 bands version using the double by the cascade connection is prepared. NJU7505AD NJU7505AM PIN CONFIGURATION FEATURES BPF for the audio spectrum analyzer display of the 5 bands 10 bands extension is available by the cascade connection BPF using the switched capacitor filter technology CR oscillation circuit on chip (External clock input is available) Power-on initialization circuit on chip (External reset input is available) C-MOS Technology Package Outline DIP8, DMP8 OSC1 1 5 VDD OSC2 2 6 AIN 3 7 AOUT 4 8 VSS RSTb/CLKO RD BLOCK DIAGRAM Audio Signal RSTb/CLKO Control Signal Clock Signal RD OSC1 OSC2 fOSC fOSC/16 fOSC/4 iH BPF High Band AIN Input BUF VDD + VSS Ver.2008-07-30 iL RL RH ΦH ΦL High Band Peak Detector Level Shifter & Output BUF LPF VDD - Power-on Initialize Control Circuit OSC BPF Low Band AOUT Low Band Peak Detector AGND VSS -1-
JRC
日本無線株式会社
日本
産業用および公共用無線通信システムを製造・販売しており、主要営業品目は、通信機器・海上機器・システム機器に大別される。半導体は通信関連デバイス。
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