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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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AS7030B Fiches technique(PDF) 24 Page - ams AG |
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AS7030B Fiches technique(HTML) 24 Page - ams AG |
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24 / 129 page  Document Feedback AS7030B Functional Description Datasheet • PUBLIC DS000716 • v1-00 • 2020-Jun-10 128 │ 23 7 Functional Description 7.1 Optical Analog Front End Figure 9: Optical Analog Front End The optical front end is used for PPG measurements. The OFE consists of: ● 4 LEDs individually configurable, operated manually or controlled by the built-in Sequencer. ● 2 green LEDs (VD1 and VD2) ● 1 IR LEDs (VD4) ● 1 available for connecting an external LED to VD3 pd1 pd2 pd3 pd4 pd_i0 pd_ampcap pd_ampres pdoffx pd_amp_en * ADC ofe1/2_sd_byp Synchronous Demodulator1,2 + BP Filter + Gain Stages TIA ofe1/2_hp_byp ofe1/2_sd_bw aa_freq 12.5-200Hz ofe1/2_en ofe1/2_hp_freq ofe1/2_hp_en ofe1/2 _gain_g Sequencer Clip Det Clip Det gain_sd h/l vth h/l vth FiFo Prefilter pdoffx_ledon any LED on? fifol, fifoh pregain ofe1 ofe2 sd1 sd2 tia pd_i1 ofe_notch _sel60 ecg_notch_byp |
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