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AS7058 Datasheet(PDF) 193 Page - ams-OSRAM AG

Part # AS7058
Description  IC for PPG, ECG and body impedance measurement
PDF  199 Pages
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Manufacturer  AMSOSRAM [ams-OSRAM AG]
Direct Link  https://ams-osram.com/
Logo AMSOSRAM - ams-OSRAM AG

AS7058 Datasheet(HTML) 193 Page - ams-OSRAM AG

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AS7058
Application information
Datasheet • PUBLIC • Document Feedback
DS001077 • v2-00 • 2025-Sep-24
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9.2
External components
This chapter provides recommended external components for the example schematics shown
in chapter 9.1.
Table 220: External components - capacitors
Symbol
Parameter
Temp.
characteristic
Min. rated
voltage
Max. tolerance
Recommended
typ. value
CDVDD
Input capacitor for DVDD pin
Y5R; X5R
4 V
±10%
1 µF
CIOVDD
Input capacitor for IOVDD pin
Y5R; X5R
4 V
±10%
100 nF
CECG_CM
Input capacitor for ECG_REF
pin
Y5R; X5R
4 V
±1%
100 pF
CAVDDx
Input capacitor for AVVDx pin
Y5R; X5R
4 V
±10%
1 µF
CBIO
Safety protection capacitor
Y5R; X5R
4 V
±10%
47 nF
Table 221: External components - resistors
Symbol
Parameter
Min. power
dissipation
Max. tolerance
Min. / Max.
nominal
resistance
Recommended
typ. value
RPU
Pull up resistor
0.03 W
±10%
1 kΩ / 100 kΩ
47 kΩ
RI2C_PU
I²C bus pull up resistors
0.03 W
±10%
1 kΩ / 47 kΩ
10 kΩ
RPD
Pull down resistor
0.03 W
±10%
1 kΩ / 100 kΩ
47 kΩ
RECG
ECG resistor
0.03 W
±0.1%
50 kΩ / 100 kΩ
50 kΩ
RECG_CM
ECG common mode rejection
resistor
0.03 W
±0.1%
100 kΩ / 1 MΩ
1 MΩ
RBIO
Safety protection resistor
0.03 W
±1%
-
5100 Ω
RBIOP
Safety protection resistor
0.03 W
±1%
-
100 kΩ
Table 222: External components – photodiodes
Symbol
Parameter
Vendor
Part number
Max. sensitivity
wavelength
Radiant
sensitive area
PDx
Photodiode
ams OSRAM
SFH 2705
930 nm
3.5 mm2
PDx
Photodiode
ams OSRAM
SFH 2202
830 nm
8.12 mm2



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