TSL2561CL TAOS, TSL2561CL Datasheet - Page 24
![Light to Digital Converters Ambient Light Sensor Light to Digital](/photos/16/3/160351/tsl2561fn_sml.jpg)
TSL2561CL
Manufacturer Part Number
TSL2561CL
Description
Light to Digital Converters Ambient Light Sensor Light to Digital
Manufacturer
TAOS
Datasheet
1.TSL2561T.pdf
(42 pages)
Specifications of TSL2561CL
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
Chip LED
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
TSL2560, TSL2561
LIGHT-TO-DIGITAL CONVERTER
TAOS059N − MARCH 2009
//****************************************************************************
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//
//****************************************************************************
#define LUX_SCALE
#define RATIO_SCALE 9
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
// Integration time scaling factors
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
#define CH_SCALE
#define CHSCALE_TINT0
#define CHSCALE_TINT1
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
// T, FN, and CL Package coefficients
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
// For Ch1/Ch0=0.00 to 0.50
//
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//
//
//
//
//
//
//
//
//
//
//
// For Ch1/Ch0=0.50 to 0.61:
//
//
// For Ch1/Ch0=0.61 to 0.80:
//
//
// For Ch1/Ch0=0.80 to 1.30:
//
//
// For Ch1/Ch0>1.3:
//
//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
#define K1T
#define B1T
#define M1T
#define K2T
24
Copyright E 2009, TAOS Inc.
Copyright E 2004−2005 TAOS, Inc.
THIS CODE AND INFORMATION IS PROVIDED ”AS IS” WITHOUT WARRANTY OF ANY
KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
PURPOSE.
Module Name:
lux.cpp
Lux/Ch0=0.0304−0.062*((Ch1/Ch0)^1.4)
piecewise approximation
Lux/Ch0=0.0224−0.031*(Ch1/Ch0)
Lux/Ch0=0.0128−0.0153*(Ch1/Ch0)
Lux/Ch0=0.00146−0.00112*(Ch1/Ch0)
Lux/Ch0=0
0x0040
0x01f2
0x01be
0x0080
14
For Ch1/Ch0=0.00 to 0.125:
For Ch1/Ch0=0.125 to 0.250:
For Ch1/Ch0=0.250 to 0.375:
For Ch1/Ch0=0.375 to 0.50:
// scale by 2^14
// scale ratio by 2^9
10
0x7517 // 322/11 * 2^CH_SCALE
0x0fe7 // 322/81 * 2^CH_SCALE
Lux/Ch0=0.0304−0.0272*(Ch1/Ch0)
Lux/Ch0=0.0325−0.0440*(Ch1/Ch0)
Lux/Ch0=0.0351−0.0544*(Ch1/Ch0)
Lux/Ch0=0.0381−0.0624*(Ch1/Ch0)
// 0.125 * 2^RATIO_SCALE
// 0.0304 * 2^LUX_SCALE
// 0.0272 * 2^LUX_SCALE
// 0.250 * 2^RATIO_SCALE
// scale channel values by 2^10
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