PMW3389DM Product Datasheet
PixArt Imaging Inc.
Optical Gaming Navigation Chip
4.4 AC Electrical Specifications
Table 5. AC Electrical Specifications
Chip electrical characteristics over recommended operating conditions. Typical values at 25°C, VDD = 1.9V, VDDIO=1.9V
Parameter
Symbol
Min
Typical
Max
Units
Notes
Motion Delay After
Reset
tMOT-RST
50
ms
From reset to valid motion, assuming
motion is present
Shutdown
tSTDWN
500
From Shutdown mode active to low
current
s
Wake From Shutdown
tWAKEUP
50
ms
From Shutdown mode inactive to
valid motion. Notes: A RESET must
be asserted after a shutdown. Refer
to section “Notes on Shutdown”, also
note tMOT-RST
MISO Rise Time
MISO Fall Time
MISO Delay After SCLK tDLY-MISO
tr-MISO
tf-MISO
50
50
ns
ns
ns
CL = 100pF
CL = 100pF
From SCLK falling edge to MISO data
valid, no load conditions
90
MISO Hold Time
MOSI Hold Time
thold-MISO
thold-MOSI
200
200
ns
ns
Data held until next falling SCLK edge
Amount of time data is valid after
SCLK rising edge
MOSI Setup Time
tsetup-
MOSI
120
180
ns
From data valid to SCLK rising edge
SPI Time Between
Write Commands
tSWW
From rising SCLK for last bit of the
first data byte, to rising SCLK for last
bit of the second data byte.
s
SPI Time Between
Write And Read
Commands
SPI Time Between
Read And Subsequent
Commands
tSWR
180
20
From rising SCLK for last bit of the
first data byte, to rising SCLK for last
bit of the second address byte.
From rising SCLK for last bit of the
first data byte, to falling SCLK for the
first bit of the address byte of the
next command.
s
s
tSRW
tSRR
SPI Read Address-Data
Delay
tSRAD
160
35
From rising SCLK for last bit of the
address byte, to falling SCLK for first
bit of data being read.
From rising SCLK for last bit of the
address byte, to falling SCLK for first
bit of data being read. Applicable for
Burst Mode Motion Read only.
s
s
SPI Read Address-Data tSRAD_MO
Delay for Burst Mode
Motion Read
TBR
NCS Inactive After
Motion Burst
tBEXIT
500
ns
Minimum NCS inactive time after
motion burst before next SPI usage
Version 1.01 | 03 Jan 2019 | 11020AENW
PixArt Imaging Inc. http://www.pixart.com
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