TSL2560FN TAOS, TSL2560FN Datasheet - Page 27
![Light to Digital Converters Ambient Light Sensor SMBus](/photos/16/3/160351/tsl2561fn_sml.jpg)
TSL2560FN
Manufacturer Part Number
TSL2560FN
Description
Light to Digital Converters Ambient Light Sensor SMBus
Manufacturer
TAOS
Datasheet
1.TSL2561T.pdf
(42 pages)
Specifications of TSL2560FN
Data Bus Width
20 bit
Peak Wavelength
640 nm, 940 nm
Maximum Operating Frequency
780 KHz
Operating Supply Voltage
2.7 V to 3.6 V
Operating Current
0.6 mA to 15 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
The LUMENOLOGY r Company
}
// scale if gain is NOT 16X
if (!iGain) chScale = chScale << 4;
// scale the channel values
channel0 = (ch0 * chScale) >> CH_SCALE;
channel1 = (ch1 * chScale) >> CH_SCALE;
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
// find the ratio of the channel values (Channel1/Channel0)
// protect against divide by zero
unsigned long ratio1 = 0;
if (channel0 != 0) ratio1 = (channel1 << (RATIO_SCALE+1)) / channel0;
// round the ratio value
unsigned long ratio = (ratio1 + 1) >> 1;
// is ratio <= eachBreak ?
unsigned int b, m;
switch (iType)
{
case 0: // T, FN and CL package
case 1:// CS package
break;
if ((ratio >= 0) && (ratio <= K1T))
else if (ratio <= K2T)
else if (ratio <= K3T)
else if (ratio <= K4T)
else if (ratio <= K5T)
else if (ratio <= K6T)
else if (ratio <= K7T)
else if (ratio > K8T)
break;
if ((ratio >= 0) && (ratio <= K1C))
else if (ratio <= K2C)
else if (ratio <= K3C)
else if (ratio <= K4C)
else if (ratio <= K5C)
else if (ratio <= K6C)
else if (ratio <= K7C)
{b=B1T; m=M1T;}
{b=B2T; m=M2T;}
{b=B3T; m=M3T;}
{b=B4T; m=M4T;}
{b=B5T; m=M5T;}
{b=B6T; m=M6T;}
{b=B7T; m=M7T;}
{b=B8T; m=M8T;}
{b=B1C; m=M1C;}
{b=B2C; m=M2C;}
{b=B3C; m=M3C;}
{b=B4C; m=M4C;}
{b=B5C; m=M5C;}
{b=B6C; m=M6C;}
{b=B7C; m=M7C;}
r
www.taosinc.com
// scale 1X to 16X
LIGHT-TO-DIGITAL CONVERTER
r
TSL2560, TSL2561
Copyright E 2009, TAOS Inc.
TAOS059N − MARCH 2009
27