TSL2580CS(2010) Ver la hoja de datos (PDF) - austriamicrosystems AG

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Fabricante

TSL2580CS
(Rev.:2010)

LIGHT-TO-DIGITAL CONVERTER

austriamicrosystems AG 

TSL2580, TSL2581

LIGHT-TO-DIGITAL CONVERTER

APPLICATION INFORMATION: SOFTWARE

TAOS098 − MARCH 2010

Basic Operation

After applying VDD, the device will initially be in the power-down state. To operate the device, issue a command

to access the CONTROL register followed by the data value 01h to the CONTROL register to power up the

device. The TIMING register should be configured for the preferred integration period, and then the ADC_EN

should be set to 1 to enable both ADC channels.

lid EXT

PWR

NO

YES

va POWER

DOWN

ill (Power = 0)

G t ACTIVE

s (ADC_EN = 0

Power = 1)

s A nt ALS

e (ADC_EN = 1

m t Power =1)

a n Figure 15. State Diagram

o The following pseudo code illustrates a procedure for reading the TSL258x device (ALS) using word

c transactions:

Command = 0x80

l Power_On = 0x01

//Set Command bit and Control Reg

a //Power on device

WriteByte (Address, Command, Power_On)

ic Command = 0x81

ITIME = 0xb6

//Set Command bit and ALS Timing Reg

//200 ms integration cycle

n //Configure ALS Timing Register for 200 ms integration cycle

WriteByte (Address, Command, ITIME)

h Command = 0x80

c ADC_En = 0x03

//Set Command bit and Control Reg

//Enable ADC Channels

e//Keep device powered on and enable ADC prior to reading channel data

TWriteByte (Address, Command, ADC_En | Power_On)

The LUMENOLOGY r Company

r

r

www.taosinc.com

Copyright E 2010, TAOS Inc.

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