PAN301BSI-208 Datasheet, PDF (18/27 Pages) Pixart Imaging Inc. – CMOS HIGH PERFORMANCE OPTICAL MOUSE SENSOR

PixArt Imaging Inc.
PAN301BSI-208
CMOS Optical Mouse Sensor
SCLK
t_SIWTT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
SDIO
t_RESYNC
1us, min
Hi-Z
ADDRESS(R/W)
DATA
Figure 14. Re-synchronous serial interface using watchdog timer timeout
6.5 Power Down Mode
There are two different ways to entry power down mode, using the PD line or register setting.
6.5.1 PD Line Power Down Mode
To place the PAN301BSI-208 in a low power mode to meet USB suspend specification, raise the PD line
at least 700us. Then PD line can stay high, with the PAN301BSI-208 in the shutdown state, or the PD pin
can be lowered, returning the PAN301BSI-208 to normal operation.
PD
t_PDW
700us,min
IDD
t_PD
500us
500us
90frames
t_PUPD
30.5ms
Figure 15. Power down minimum pulse width
PD
SCLK
SDIO
t_PDW
700us,min
Hi-Z
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
ADDRESS(R/W)
DATA
Figure 16. PD line power down mode
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18
PixArt Imaging Inc.
E-mail: [e-mail]
V1.1, MAY. 2004