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TCS3103 Datasheet(PDF) 3 Page - ams AG |
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TCS3103 Datasheet(HTML) 3 Page - ams AG |
3 / 13 page TCS3103, TCS3104 LIGHT-TO-VOLTAGE COLOR SENSOR TAOS108B − JULY 2010 2 r r Copyright E 2010, TAOS Inc. The LUMENOLOGY r Company www.taosinc.com Detailed Description The TCS3103 and TCS3104 devices output a voltage that is linearly proportional to light intensity in the spectral range of interest on each of the three sensor channels. Figure 2 shows how each sensor responds to light of various wavelengths. The peak response of each of the three channels roughly corresponds to blue, green, and red portions of the visible light spectrum. Thus, when light impinges upon the three elements, each element gives an output that corresponds to the blue, green, and red components of the light. By measuring the amplitude and ratios of the three channels, information about the color of the light can be obtained. Each channel responds linearly to light intensity from a range of near zero light to a maximum value that is determined by the gain and the supply voltage of the device. The output of the device can swing from near ground level to near the supply voltage of the device. The dark voltage, or output of the device with no light input, is determined by internal amplifier offsets and is factory-trimmed to be a minimum value. If very accurate, low-level light measurement is required, the dark voltage value for each channel can be measured and subtracted from subsequent light readings to obtain a more accurate light measurement. The Multifunction Pin (MFP) on each device can be used for selecting gain mode (Table 1). Table 1. Device Programming Option Device Mode Details TCS3103 GSM (Gain Select Mode) 2 × (MFP = 0) or 4× (MFP = 1) TCS3104 GSM (Gain Select Mode) 4 × (MFP = 0) or 1× (MFP = 1) Terminal Functions TERMINAL TYPE DESCRIPTION NAME NO. TYPE DESCRIPTION GND 2 Power Power supply ground. All voltages are referenced to GND. MFP 3 I Multi-function logic input. VDD 1 Power Supply voltage. VOB 4 O Blue channel voltage output. VOG 5 O Green channel voltage output. VOR 6 O Red channel voltage output. Available Options DEVICE Gain PACKAGE − LEADS PACKAGE DESIGNATOR ORDERING NUMBER TCS3103 2 ×, 4× Dual Flat No-Lead − 6 FN TCS3103FN TCS3104 4 ×, 1× Dual Flat No-Lead − 6 FN TCS3104FN |
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