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ADPD144RI Datasheet(PDF) 7 Page - Analog Devices

Part # ADPD144RI
Description  PPG Optical Sensor Module with Integrated Red/IR Emitters and AFE
PDF  34 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADPD144RI Datasheet(HTML) 7 Page - Analog Devices

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Data Sheet
ADPD144RI
Rev. A | Page 7 of 34
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
1
2
3
10
9
8
7
4
5
6
12
11
ADPD144RI
TOP VIEW
(Not to Scale)
LGND
SDA
DGND
AGND
VDD1
VREF
SCL
INT
VDD2
LEDX1
LEDX2
VLED
NOTES
1. LEDX1, LEDX2 DO NOT CONNECT TO THESE
PINS UNLESS DRIVING EXTERNAL LEDs.
Figure 4. Pin Configuration
Table 8. Pin Function Descriptions
Pin No.
Mnemonic
Type
Description
1
LGND
Supply
LED Ground.
2
SDA
Digital input and output
Serial Address and Data.
3
DGND
Supply
Digital Ground.
4
AGND
Supply
Analog Ground.
5
VDD1
Supply
1.8 V Supply Input.
6
VREF
Analog reference
Voltage Reference. Bypass with a 0.7 µF to 4 µF capacitor to AGND.
Recommended value is 1 µF.
7
VLED
Supply
Integrated LEDs Anode Supply Voltage.
8
LEDX2
Analog output
External LED2 Cathode. Do not connect this pin unless driving external LEDs.
9
LEDX1
Analog output
External LED1 Cathode. Do not connect this pin unless driving external LEDs.
10
VDD2
Supply
1.8 V Supply Input.
11
INT
Digital input and output
Interrupt Input and Output.
12
SCL
Digital input
Serial Clock for I2C Communication.



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