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Version 1.40 |12 Aug 2016 | 31005AEN

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

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PixArt Imaging Inc.

PMW3325DB-TWV1 General Datasheet

Optical Gaming Navigation Chip

2.5

AC Characteristics

Table 6. AC Electrical Specifications

Parameters

Symbol

Min.

Typ.

Max.

Unit Conditions

Motion Delay After Reset

50

ms

From reset to valid motion,

assuming motion is present

Shutdown

500

s

From Shutdown mode active to low

current

Wake up from Shutdown

50

60

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

SDIO Output Rise Time

50

ns

SDIO Output Fall Time

50

ns

SDIO Output Delay After SCLK

90

ns

From SCLK falling edge to SDIO

output data valid, no load condition

SDIO Output Hold Time

200

ns

Data held until next falling SCLK

edge

SDIO input Hold Time

200

ns

Amount of time data is valid after

SCLK rising edge

SDIO input Setup Time

120

ns

From data valid to SCLK rising edge

SPI Time Between Write

Commands

45

s

From rising SCLK for last bit of the

first data byte, to rising SCLK for

last bit of the second data byte.

SPI Time Between Write And

Read Commands

45

s

From rising SCLK for last bit of the

1st data byte, to rising SCLK for last

bit of the second address byte

SPI Time Between Read And

Subsequent Commands

20

s

From rising SCLK for last bit of the

1st data byte, to falling SCLK for the

1st bit of data being read.

SPI Read Address-Data Delay

35

s

From rising SCLK for last bit of the

address byte, to falling SCLK for the

1st bit of data being read.

NCS Inactive After Motion

Burst

500

ns

Minimum NCS inactive time after

motion burst before next SPI usage

NCS To SCLK Active

120

ns

From last NCS falling edge to 1st

SCK rising edge.

SCLK To NCS Inactive SDIO

Write

120

ns

From last SCLK falling edge to NCS

rising edge, for valid SDIO data

transfer