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NJU8713 Datasheet(PDF) 3 Page - New Japan Radio |
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NJU8713 Datasheet(HTML) 3 Page - New Japan Radio |
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3 / 8 page  NJU3555 NJU8713 -3 - Ver.2004-06-02 FUNCTIONAL DESCRIPTION (1) Signal Output PWM signals of L channel and R output from OUT1 and OUT2 terminals respectively. These signals are converted to analog signal by external 2nd-order or over LC filter. The output driver power supplied from VDDO and VSSO are required high response power supply against voltage fluctuation like as switching regulator because Output T.H.D is effected by power supply stability. (2) Master Clock Master clock (MCK) synchronizes the Audio signal inputs (IN1 and IN2). The setup time and the hold time should be kept in the AC characteristics because IN1 and IN2 are fetched with the rising edge of MCK. MCK requires jitter-free or jitter as small as possible because the jitter downs S/N ratio. OUT1 and OUT2 occur the pop noise when MCK is stopped in operation without standby mode. Therefore, the standby mode should be set before MCK stop. (3) Output Control Output circuit is selected by the conditions of EN1 and EN2 terminals. EN2 EN1 Output State of OUT1 & OUT2 0 0 Standby(High impedance) 0 1 Audio Signal Output 1 0 BPZ Output 1 1 Beep Signal Output (4) Beep Function The beep signal must be input before the rising edge of EN2 signal and must be stopped after the falling edge of EN2 signal. EN1 EN2 MCK BEEP Beep Signal Output Audio Signal Output Audio Signal Output |
Similar Part No. - NJU8713 |
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Similar Description - NJU8713 |
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