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PAH8002EP Datasheet Preview

PAH8002EP Datasheet

Low Power Optical Heart Rate Detection Chip

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PixArt Imaging Inc.
PAH8002EP-2P Product Datasheet
Low Power Optical Heart Rate Detection Chip
PAH8002EP: Low Power Optical Heart Rate Detection Chip
General Description
The PAH8002EP is a low power and high-performance
CMOS-process optical chip with three LEDs: two Green
and one Infrared, and integrated DSP, targeted as a Heart
Rate Detection (HRD) chip. It is based on optical sensing
technology that captures higher resolution image than
the traditional photodiode. The images are then
processed through our integrated DSP to attain
processed PPG (Photoplethysmogram) data for use in
deducing heart rate.
Key Features
Heart rate detection function (HRD)
SRAM buffer support
Integrated ultra-low power mode, while in Sleep mode
Adjustable sleep rate control
Communication interface options
I2C
Four-Wire SPI
I2C interface up to 1 Mbit/s
SPI interface up to 2 Mbit/s
Hardware reset support
Integrated chip-on-board LEDs with wavelength of
525nm and 940nm
Applications
Heart Rate Monitor Accessories
Wearables: Smartwatch, Wrist Band
*Disclaimer:
The PAH8002EP-2P is not designed for usage in medical device.
In addition, the data and information of heart rate
measurement provided by this chip may not be completely
accurate and may exceed heart rate tolerance as per the
specification stated in the document due to different factors,
such as interference with signal from external sources,
incorrect wearing position and changes in weather conditions
or user's body condition.
PIXART IMAGING INC. DISCLAIMS ALL LIABILITY ARISING FROM
SUCH INACCURACY AND ASSUMES NO RESPONSIBILITY FOR THE
CONSEQUENCES OF USE OF SUCH DATA AND INFORMATION.
Key Parameters
Parameter
Value
Operating Temperature, -20 to +60
Tj (°C)
Array Size
1 pixel
Pixel Size (µm)
780 x 780
Max Frame Rate (fps) 50K
Dynamic Range (dB)
70
Supply Voltage (V)
VDDM: 3.3 3.6
VDD_LEDx: 3.3 3.6
VDDIO: 1.62 3.6
Analog: 2.8
Digital: 1.8
Power Consumption
(mW) @3.3V
Active:
Double Injection Type :
Note: Including LED
current, without I/O
toggling, package only
4.95 with one LED
8.25 with two LEDs
0.165 with IR Touch
Detection
Printing Cover Type:
5.94 with two LEDs
0.165 with IR Touch
Detection
Sleep: 0.08
Heart Rate Measurement
Range (bpm)
30 - 240
Package Size (mm)
3.6 x 6.36 x 1.0
Ordering Information
Part Number
PAH8002EP-2P
Package Type
22-Pin LGA
For any additional inquiries, please contact us at
http://www.pixart.com/contact.asp
Version 1.3 | 25 Sep 2017 | 31007AEN
PixArt Imaging Inc. http://www.pixart.com
All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission.
1




PixArt

PAH8002EP Datasheet Preview

PAH8002EP Datasheet

Low Power Optical Heart Rate Detection Chip

No Preview Available !

PixArt Imaging Inc.
PAH8002EP-2P Product Datasheet
Low Power Optical Heart Rate Detection Chip
Contents
PAH8002EP: Low Power Optical Heart Rate Detection Chip..................................................................................................... 1
General Description ............................................................................................................................................................ 1
Key Features ....................................................................................................................................................................... 1
Applications ........................................................................................................................................................................ 1
Key Parameters ................................................................................................................................................................... 1
Ordering Information.......................................................................................................................................................... 1
List of Figures........................................................................................................................................................................... 3
List of Tables ............................................................................................................................................................................ 3
Introduction................................................................................................................................................................. 5
1.1 Overview ................................................................................................................................................................. 5
1.2 Terminology ............................................................................................................................................................ 5
1.3 Signal Description .................................................................................................................................................... 6
Operating Specifications .............................................................................................................................................. 8
2.1 Absolute Maximum Ratings..................................................................................................................................... 8
2.2 Recommended Operating Conditions ..................................................................................................................... 8
2.3 Thermal Specifications ............................................................................................................................................ 9
2.4 DC Characteristics.................................................................................................................................................... 9
2.5 AC Characteristics.................................................................................................................................................. 10
Mechanical Specifications .......................................................................................................................................... 11
3.1 Mechanical Dimension .......................................................................................................................................... 11
3.2 Package Marking ................................................................................................................................................... 12
System Level Description ........................................................................................................................................... 13
4.1 System Overview ................................................................................................................................................... 13
4.2 Heart Rate Detection............................................................................................................................................. 14
4.3 Reference Schematic............................................................................................................................................. 16
4.4 Design Guidelines .................................................................................................................................................. 17
4.5 Recommend Guideline for PCB Assembly ............................................................................................................. 20
4.6 Package Information ............................................................................................................................................. 21
4.7 IR Touch Detection ................................................................................................................................................ 23
Registers .................................................................................................................................................................... 23
5.1 Registers List.......................................................................................................................................................... 23
Document Revision History .................................................................................................................................................... 25
Version 1.3 | 25 Sep 2017 | 31007AEN
PixArt Imaging Inc. http://www.pixart.com
All rights reserved. Any portion in this paper shall not be reproduced, copied, or transformed to any other forms without permission.
2


Part Number PAH8002EP
Description Low Power Optical Heart Rate Detection Chip
Maker PixArt
Total Page 25 Pages
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