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
Input Low Voltage
Output High Voltage
Output Low Voltage
LED
VIH
VIL
VOH
VOL
0.7* VDDIO
-
VDDIO - 0.4
-0.4
-
-
-
-
-
V
V
V
V
0.3* VDDIO
VDDIO + 0.4
0.4
@IOH = 2mA
@IOL = 2mA
Sink current
ILED
40
50
60
mA @ LED DAC = 50mA
V
LED cathode voltage
Notes:
VLED-
0.4
3.6
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↑
From VDD↑ to valid interface
communication
Minimum hold time for valid
data.
Refer to Serial Interface section
tPU
200
300
400
ms
us
us
us
ns
SDI/SDO Read Hold Time
Address and data delay time
Chip Pulse Interrupt Width
Rise and Fall Times: SDI/SDO
HW Reset Time
THOLD
tdelay
tINT
-
3
-
2.75
Default 0.5us, can be changed
in INT_Pulse_Width register
CL = 30 pF
0.00625
0.5
16
tr , tf
treset
-
30
-
200
300
400
ms 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.
Version 1.3 | 25 Sep 2017 | 31007AEN
PixArt Imaging Inc. http://www.pixart.com
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PIXART [ PIXART IMAGING INC. ]
