ADNS-2220 Avago Technologies US Inc., ADNS-2220 Datasheet - Page 16

• Manufacturer Part Number: ADNS-2220
• Description: SOLID STATE OPTICAL MOUSE LENS
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-2220

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q2072083A

Required timing between Read and Write Commands (tsxx)
There are minimum timing requirements between read and write commands on the serial port.
Figure 19. Timing between two write commands
If the rising edge of the SCLK for the last data bit of the second write command occurs before the 50 microsecond
required delay, then the first write command may not complete correctly.
Figure 20. Timing between write and read commands
If the rising edge of SCLK for the last address bit of the read command occurs before the 50 microsecond required
delay, the write command may not complete correctly.
Figure 21. Timing between read and either write or subsequent read commands
The falling edge of SCLK for the first address bit of either the read or write command must be at least 250 ns after
the last SCLK rising edge of the last data bit of the previous read operation. In addition, during a read operation SCLK
should be delayed after the last address bit to ensure that the ADNS-3060 has time to prepare the requested data.
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SCLK
SCLK
SCLK
Address
Address
Address
Write Operation
Write Operation
Data
Data
t
t
SRAD
SRAD-MOT
≥ 50 μs for non-motion read
Read Operation
≥ 75 μs for register 0x02
Address
t
SWR
t
SWW
≥ 50μs
Write Operation
≥ 50μs
Next Read
Operation
Address
Data
Data
t
SRW
& t
SRR
Write Operation
> 250 ns
Next Read or
Address