PAH8002EP datasheet(10/25 Pages) PIXART

10 / 25 page

Version 1.3 | 25 Sep 2017 | 31007AEN

PixArt Imaging Inc. http://www.pixart.com

PAH8002EP-2P Product Datasheet

Low Power Optical Heart Rate Detection Chip

PixArt Imaging Inc.

Parameters

Symbol

Min.

Typ.

Max.

Unit Conditions

I/O

Input High Voltage

VIH

0.7* VDDIO

Input Low Voltage

VIL

0.3* VDDIO

Output High Voltage

VOH

VDDIO - 0.4

VDDIO + 0.4

@IOH = 2mA

Output Low Voltage

VOL

-0.4

0.4

@IOL = 2mA

LED

Sink current

ILED

mA @ LED DAC = 50mA

LED cathode voltage

VLED-

0.4

3.6

Notes:

1. Electrical Characteristics are defined under recommended operating conditions.

2. All the parameters are tested under operating conditions: VDDM = 3.3V, VDDIO = 1.8 and 3.3V, TA = 25°C

2.5

AC Characteristics

Table 6. AC Electrical Specifications

Parameters

Symbol

Min.

Typ.

Max.

Unit Conditions

Power Up from VDD↑

tPU

200

300

400

From VDD↑ to valid interface

communication

SDI/SDO Read Hold Time

THOLD

Minimum hold time for valid

data.

Address and data delay time

tdelay

2.75

Refer to Serial Interface section

Chip Pulse Interrupt Width

tINT

0.00625

0.5

Default 0.5us, can be changed

in INT_Pulse_Width register

Rise and Fall Times: SDI/SDO

tr , tf

CL = 30 pF

HW Reset Time

treset

200

300

400

Reset_N from low to high

period

Notes:

1. Electrical Characteristics are defined under recommended operating conditions

2. All the parameters are tested under operating conditions: TA = 25°C, VDDM = 3.3V, VDDIO = 3.3V for 3.3V IO application

and VDDIO = 1.8 V for 1.8V IO application.

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