TSL2563CS datasheet(24/38 Pages) TAOS

24 / 38 page

TSL2562, TSL2563

LOW-VOLTAGE

LIGHT-TO-DIGITAL CONVERTER

TAOS066J − MAY 2007

The LUMENOLOGY r Company

www.taosinc.com

#define B2T

0x0214

// 0.0325 * 2^LUX_SCALE

#define M2T

0x02d1

// 0.0440 * 2^LUX_SCALE

#define K3T

0x00c0

// 0.375 * 2^RATIO_SCALE

#define B3T

0x023f

// 0.0351 * 2^LUX_SCALE

#define M3T

0x037b

// 0.0544 * 2^LUX_SCALE

#define K4T

0x0100

// 0.50 * 2^RATIO_SCALE

#define B4T

0x0270

// 0.0381 * 2^LUX_SCALE

#define M4T

0x03fe

// 0.0624 * 2^LUX_SCALE

#define K5T

0x0138

// 0.61 * 2^RATIO_SCALE

#define B5T

0x016f

// 0.0224 * 2^LUX_SCALE

#define M5T

0x01fc

// 0.0310 * 2^LUX_SCALE

#define K6T

0x019a

// 0.80 * 2^RATIO_SCALE

#define B6T

0x00d2

// 0.0128 * 2^LUX_SCALE

#define M6T

0x00fb

// 0.0153 * 2^LUX_SCALE

#define K7T

0x029a

// 1.3 * 2^RATIO_SCALE

#define B7T

0x0018

// 0.00146 * 2^LUX_SCALE

#define M7T

0x0012

// 0.00112 * 2^LUX_SCALE

#define K8T

0x029a

// 1.3 * 2^RATIO_SCALE

#define B8T

0x0000

// 0.000 * 2^LUX_SCALE

#define M8T

0x0000

// 0.000 * 2^LUX_SCALE

//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

// CS package coefficients

//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

// For 0 <= Ch1/Ch0 <= 0.52

Lux/Ch0 = 0.0315−0.0593*((Ch1/Ch0)^1.4)

piecewise approximation

For 0 <= Ch1/Ch0 <= 0.13

Lux/Ch0 = 0.0315−0.0262*(Ch1/Ch0)

For 0.13 <= Ch1/Ch0 <= 0.26

Lux/Ch0 = 0.0337−0.0430*(Ch1/Ch0)

For 0.26 <= Ch1/Ch0 <= 0.39

Lux/Ch0 = 0.0363−0.0529*(Ch1/Ch0)

For 0.39 <= Ch1/Ch0 <= 0.52

Lux/Ch0 = 0.0392−0.0605*(Ch1/Ch0)

// For 0.52 < Ch1/Ch0 <= 0.65

Lux/Ch0 = 0.0229−0.0291*(Ch1/Ch0)

// For 0.65 < Ch1/Ch0 <= 0.80

Lux/Ch0 = 0.00157−0.00180*(Ch1/Ch0)

// For 0.80 < Ch1/Ch0 <= 1.30

Lux/Ch0 = 0.00338−0.00260*(Ch1/Ch0)

// For Ch1/Ch0 > 1.30

Lux = 0

//−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−

#define K1C

0x0043 // 0.130 * 2^RATIO_SCALE

#define B1C

0x0204 // 0.0315 * 2^LUX_SCALE

#define M1C

0x01ad // 0.0262 * 2^LUX_SCALE

#define K2C

0x0085 // 0.260 * 2^RATIO_SCALE

#define B2C

0x0228 // 0.0337 * 2^LUX_SCALE

#define M2C

0x02c1 // 0.0430 * 2^LUX_SCALE

#define K3C

0x00c8 // 0.390 * 2^RATIO_SCALE

#define B3C

0x0253 // 0.0363 * 2^LUX_SCALE

#define M3C

0x0363 // 0.0529 * 2^LUX_SCALE

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