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AS7000 датащи(PDF) 83 Page - ams AG

номер детали AS7000
подробное описание детали  The AS7000 device provides a flexible analog front end for light sensing applications
PDF  92 Pages
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производитель  AMSCO [ams AG]
домашняя страница  http://www.ams.com
Logo AMSCO - ams AG

AS7000 датащи(HTML) 83 Page - ams AG

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ams Datasheet
Page 83
[v1-12] 2018-Feb-26
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AS7000 − Application Information
The AS7000 has a built-in I²C master and host device. Therefore
it allows to connect an accelerometer used for motion artefact
compensation in two ways:
1.
Connected through the host and data provided by the
host to the AS7000 via the AS7000 I²C slave
2.
Connected directly to the AS7000 and the AS7000 I²C
master retrieves the data from the accelerometer.
Following two figures show the different configurations.
Figure 115:
Measurement System With Motion Artefact Compensation
Note(s):
1. Accelerometer data provided by host.
In above configuration the host needs to send the
accelerometer data to the AS7000 via the I²C interface.
Application Information
AS7000
M0 CPU
+ RAM/
EEPROM
& Interfaces
GPIO4
GPIO3
GPIO2
GPIO1
GPIO0
GPIO8
GPIO7
GPIO6
GPIO5
LDO
Ref
Optical barrier
AGND
SIGREF
VDD
V_LDO
GND
VDD
2.6V-3.6V
VD1
VD2
VD4
VD3
LED
Supply
(DCDC)
Host
Processor
Accelerometer
VDD LDO
3V
on
ON=0
I2C to AS7000
VDD
PMIC
+Charger
to LED Supply
VBAT
VBAT
VBAT
GPIO2=SDA
GPIO3=SCL
SDA
SCL
VDD
VD3/VD4: if not used
connect to GND
on
GND



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