TSL25711 View Datasheet(PDF) - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS
Part Name
Description
MFG CO.
'TSL25711' PDF : 24 Pages View PDF
TSL2571
LIGHT-TO-DIGITAL CONVERTER
TAOS117A − FEBRUARY 2011
State Diagram
Figure 8 shows a more detailed flow for the state machine. The device starts in the sleep mode. The PON bit
is written to enable the device. A 2.72-ms delay will occur before entering the start state.
If the WEN bit is set, the state machine will then cycle through the wait state. If the WLONG bit is set, the wait
cycles are extended by 12× over normal operation. When the wait counter terminates, the state machine will
step to the ALS state.
The AEN should always be set. In this case, a minimum of 1 integration time step should be programmed. The
ALS state machine will continue until it reaches the terminal count at which point the data will be latched in
the ALS register and the interrupt set, if enabled.
Sleep
PON = 1
PON = 0
Start
1 to 256 steps
Step: 2.72 ms
Time: 2.72 ms − 696 ms
120 Hz Minimum − 8 ms
100 Hz Minimum − 10 ms
ALS
Wait
Check
ALS
Check
AEN = 1
ALS
Delay
2.72 ms
WEN = 1
WLONG = 0
1 to 256 steps
Step: 2.72 ms
Time: 2.72 ms − 696 ms
Minimum − 2.72 ms
Wait
WLONG = 1
1 to 256 steps
Step: 32.64 ms
Time: 32.64 ms − 8.35 s
Minimum − 32.64 ms
Figure 8. Expanded State Diagram
Copyright E 2011, TAOS Inc.
10
r
www.taosinc.com
The LUMENOLOGY r Company
r
Share Link: 
