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TSL2563 Datasheet, PDF (25/43 Pages) ams AG – LOW-VOLTAGE LIGHT-TO-DIGITAL CONVERTER | |||
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TSL2562, TSL2563
LOW-VOLTAGE
LIGHT-TO-DIGITAL CONVERTER
TAOS066N â AUGUST 2010
//****************************************************************************
//
// Copyright E 2004â2005 TAOS, Inc.
//
// THIS CODE AND INFORMATION IS PROVIDED âAS ISâ 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
//
//****************************************************************************
#define LUX_SCALE 14
#define RATIO_SCALE 9
// scale by 2^14
// scale ratio by 2^9
//âââââââââââââââââââââââââââââââââââââââââââââââââââ
// Integration time scaling factors
//âââââââââââââââââââââââââââââââââââââââââââââââââââ
#define CH_SCALE
10
// scale channel values by 2^10
#define CHSCALE_TINT0
#define CHSCALE_TINT1
0x7517 // 322/11 * 2^CH_SCALE
0x0fe7 // 322/81 * 2^CH_SCALE
G //âââââââââââââââââââââââââââââââââââââââââââââââââââ
// T, FN, and CL Package coefficients
//âââââââââââââââââââââââââââââââââââââââââââââââââââ
A t // For Ch1/Ch0=0.00 to 0.50
//
Lux/Ch0=0.0304â0.062*((Ch1/Ch0)^1.4)
s n //
piecewise approximation
//
For Ch1/Ch0=0.00 to 0.125:
e //
Lux/Ch0=0.0304â0.0272*(Ch1/Ch0)
m t //
//
For Ch1/Ch0=0.125 to 0.250:
//
Lux/Ch0=0.0325â0.0440*(Ch1/Ch0)
a n //
//
For Ch1/Ch0=0.250 to 0.375:
o //
Lux/Ch0=0.0351â0.0544*(Ch1/Ch0)
//
c //
For Ch1/Ch0=0.375 to 0.50:
//
Lux/Ch0=0.0381â0.0624*(Ch1/Ch0)
l //
// For Ch1/Ch0=0.50 to 0.61:
a //
Lux/Ch0=0.0224â0.031*(Ch1/Ch0)
//
ic // For Ch1/Ch0=0.61 to 0.80:
//
Lux/Ch0=0.0128â0.0153*(Ch1/Ch0)
//
// For Ch1/Ch0=0.80 to 1.30:
n //
Lux/Ch0=0.00146â0.00112*(Ch1/Ch0)
//
h // For Ch1/Ch0>1.3:
//
Lux/Ch0=0
c //âââââââââââââââââââââââââââââââââââââââââââââââââââ
#define K1T 0x0040
// 0.125 * 2^RATIO_SCALE
e #define B1T 0x01f2
// 0.0304 * 2^LUX_SCALE
T #define M1T 0x01be
// 0.0272 * 2^LUX_SCALE
still
valid
#define K2T 0x0080
// 0.250 * 2^RATIO_SCALE
Copyright E 2010, TAOS Inc.
r
The LUMENOLOGY r Company
r
24
www.taosinc.com
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