TSL27711FN TAOS, TSL27711FN Datasheet - Page 18

• Manufacturer Part Number: TSL27711FN
• Description: Light to Digital Converters Light to Digital w/Proximity
• Manufacturer: TAOS

Specifications of TSL27711FN

• Data Bus Width: 16 bit
• Peak Wavelength: 640 nm, 850 nm
• Maximum Operating Frequency: 795 KHz
• Operating Supply Voltage: 2.4 V to 3.6 V
• Operating Current: 175 uA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 30 C
• Interface Type: I2C
• Maximum Fall Time: 300 ns
• Maximum Rise Time: 300 ns
• Mounting Style: SMD/SMT
• Resolution: 16 bit
• Package / Case: DFN-6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TSL2771
LIGHT-TO-DIGITAL CONVERTER
with PROXIMITY SENSING
TAOS100A − FEBRUARY 2010
Basic Software Operation
unit8 ATIME,PIME,WTIME,PPCOUNT;
ATIME = 0xff;
WTIME = 0xff;
PTIME = 0xff;
PPCOUNT = 1;
WriteRegData(0, 0);
WriteRegData (1, ATIME);
WriteRegData (2, PTIME);
WriteRegData (3, WTIME);
WriteRegData (0xe, PPCOUNT);
unit8 PDRIVE, PDIODE, PGAIN, AGAIN;
PDRIVE = 0;
PDIODE = 0x20;
PGAIN = 0;
AGAIN = 0;
WriteRegData (0xf, PDRIVE | PDIODE | PGAIN | AGAIN);
unit8 WEN, PEN, AEN, PON;
WEN = 8;
PEN = 4;
AEN = 2;
PON = 1;
WriteRegData (0, WEN | PEN | AEN | PON);
Wait(12);
int Clear_data, IR_data, Prox_data;
Clear_data = Read_Word(0x14);
IR_data = Read_Word(0x16);
Prox_data = Read_Word(0x18);
WriteRegData (unit8 reg, unit 8 data);
{
}
unit16 Read_Word (unit8 reg);
{
}
18
Copyright E 2010, TAOS Inc.
The following pseudo code shows how to do basic initialization of the TSL2771.
m_I2CBus.WriteI2C(0x39, 0x80 | reg 1 &data);
unit8 barr [2];
m_I2CBus.ReadI2C(0x39, 0xA0 | reg, 2, ref barr);
return (uint16)(barr[0] + 256
// 2.72ms − minimum ALS integration time
// 2.72ms − minimum Wait time
// 2.72ms − minimum Prox integration time
// Minimum prox pulse count
//Disable and Powerdown
//100mA of LED Power
// IR Diode
//1x Prox gain
//1x ALS gain
// Enable Wait
// Enable Prox
// Enable ALS
// Enable Power On
//Wait for 12 ms
r
barr[1]);
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// WriteRegData(0,0x0f);
r
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