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AS7038RB 数据表(PDF) 9 Page - ams-OSRAM AG |
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AS7038RB 数据表(HTML) 9 Page - ams-OSRAM AG |
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9 / 127 page  Document Feedback AS7038RB Pin Assignment Datasheet • PUBLIC DS000726 • v2-00 • 2021-Jun-02 126 │ 8 Pin Number Pin Name Pin Type(1) Description 3 SIGREF AO Analog reference output. Connect 2.2 µF capacitor to GND (e.g. 0402 sized capacitor GRM153R60J225ME95 or 0201 sized GRM033R60J225ME47 from Murata – needs to have >1 µF specified for 1.0 V voltage bias); do not load externally The typical operating voltage on this pin is 0.6 V (sigref_en=1) 4 SIGREF_ECG AO Analog reference output. Connect 2.2 µF capacitor to GND (e.g. 0402 sized capacitor GRM153R60J225ME95 or 0201 sized GRM033R60J225ME47 from Murata – needs to have >1 µF specified for 1.0 V voltage bias); do not load externally The typical operating voltage on this pin is 0.6 V (sigref_en=1) 5 ECG_INP AI ECG amplifier positive input 6 ECG_INN AI ECG amplifier negative input 7 ECG_REF AO ECG amplifier reference output 8 ENABLE DI Enable input for AS7038RB. Active high. Setting this input to low resets all internal registers and the AS7038RB enters power down mode. Setting it high allows operation of the AS7038RB. If ENABLE is not used (AS7038RB always enabled), connect to VDD. 9 INT DO Open drain interrupt output pin. Active low. 10 SCL DI I²C serial clock input terminal – the device does not use clock stretching therefore SCL is only an input terminal. 11 SDA DI I²C serial data I/O terminal – open drain. 12 VDD P Supply voltage. Connect a 2.2 µF capacitor to GND. 13 GPIO0 GPIO General purpose input/output 14 GPIO1 GPIO General purpose input/output 15 GPIO2 GPIO General purpose input/output 16 GPIO3 GPIO General purpose input/output 17 V_LDO AO 1.9 V output voltage. Connect 2.2 µF capacitor to GND |
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