PixArt Imaging Inc.
ADBS-A350 Optical Finger Navigation
Timing Specifications
Electrical Characteristics over recommended operating conditions. Typical values at 25° C, VDD=VDDIO=1.8V.
Parameter
Symbol
Minimum Typical
Maximum Units
Notes
Motion Delay After Reset
tMOT-RST
3.5
23
ms
From Hard reset or SOFT_RESET
register write to valid register write/
read and motion, assuming motion
is present
Shutdown
tSHTDWN
tWAKEUP
50
ms
ms
From SHTDWN pin active to low
current
Wake from Shutdown
100
From SHTDWN pin inactive to valid
motion. Refer to section “Notes on
Shutdown”, also note tMOT-RST
EVENT_INT Rise Time
EVENT_INT Fall Time
SHTDWN Pulse Width
NRST Pulse Width
tr-EVENT_INT
tf-EVENT_INT
tP-SHTDWN 150
150
150
300
300
ns
CL = 100 pF
CL = 100 pF
ns
ms
s
ms
tNRST
20
From edge of valid NRST pulse
Reset Wait Time After Stable
Supply Voltage
tVRT-NRST
100
DC Electrical Specifications
Electrical Characteristics over recommended operating conditions. Typical values at 25° C, VDD=VDDIO=1.8V at default
LED setting 13 mA.
Parameter
Typical
1.56
1.34
2.90
0.2
Max
2.13
1.90
4.03
0.3
Units
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
A
Notes
DC average supply cur- I VDD
rent in Run mode
GPIO=SHTDWN=pull low, IO_MISO=NRST=pull high.
GPIO=SHTDWN=pull low, IO_MISO=NRST=pull high.
IDD_LED+
Total
DC average supply cur- I VDD
rent in Rest1
mode
GPIO=SHTDWN=pull low, IO_MISO=NRST=pull high.
GPIO=SHTDWN=pull low, IO_MISO=NRST=pull high.
IDD_LED+
0.15
0.35
0.04
0.03
0.07
0.02
0.01
0.03
0.20
0.50
0.07
0.05
0.12
0.04
0.02
0.05
26.00
Total
DC average supply cur- I VDD
rent in Rest2
mode
GPIO=SHTDWN=pull low, IO_MISO=NRST=pull high.
GPIO=SHTDWN=pull low, IO_MISO=NRST=pull high.
IDD_LED+
Total
DC average supply cur- I VDD
rent in Rest3
mode
GPIO=SHTDWN=pull low, IO_MISO=NRST=pull high.
GPIO=SHTDWN=pull low, IO_MISO=NRST=pull high.
IDD_LED+
Total
Supply current
during shutdown
IDDSHTDWN 1.54
VDD
GPIO=pull low, SHTDWN=IO_MISO=NRST=pull high.
GPIO=pull low, SHTDWN=IO_MISO=NRST=pull high.
LED current
during shutdown
IDDSHTDWN 0
VLED+
0.70
A
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PixArt Imaging Inc.
E-mail: fae_service@pixart.com.tw
9
PIXART [ PIXART IMAGING INC. ]
