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ADBMS6821 데이터시트(PDF) 25 Page - Analog Devices

부품명 ADBMS6821
상세설명  Single/Dual isoSPI Transceiver
PDF  28 Pages
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제조업체  AD [Analog Devices]
홈페이지  http://www.analog.com
Logo AD - Analog Devices

ADBMS6821 데이터시트(HTML) 25 Page - Analog Devices

Back Button ADBMS6821 Datasheet HTML 20Page - Analog Devices ADBMS6821 Datasheet HTML 21Page - Analog Devices ADBMS6821 Datasheet HTML 22Page - Analog Devices ADBMS6821 Datasheet HTML 23Page - Analog Devices ADBMS6821 Datasheet HTML 24Page - Analog Devices ADBMS6821 Datasheet HTML 25Page - Analog Devices ADBMS6821 Datasheet HTML 26Page - Analog Devices ADBMS6821 Datasheet HTML 27Page - Analog Devices ADBMS6821 Datasheet HTML 28Page - Analog Devices  
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Data Sheet
ADBMS6821/ADBMS6822
THEORY OF OPERATION
analog.com
Rev. B | 25 of 28
Average
 LPCM Supply Current=IVPLSTN+
IVDD/VPRDY_LPCM×1ms/Heartbeat
 Period (1)
Thus, for instance, when VP = 12 V, VDD = 0 V, and heartbeat
period = 1 sec, the average LPCM supply current is approximately
12 µA.
SPI PINS DURING LPCM
When the MSTR pin transitions low to begin LPCM operation, the
CS, SCK, and PICO pins of the transceiver cease to operate as
input pins and begin to operate as low impedance output pins. The
POCI pin ceases to operate as a low impedance output pin and
begins to operate as an input pin, which can cause contention if
the VDDS supply remains powered and the attached microcontrol-
ler continues to drive the CS, SCK, and PICO pins. To prevent
contention on these pins, disable the VDDS supply or stop the
microcontroller from driving these pins before driving the MSTR pin
low.



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