TSL2550-RS232EVM TAOS, TSL2550-RS232EVM Datasheet
TSL2550-RS232EVM
Specifications of TSL2550-RS232EVM
Related parts for TSL2550-RS232EVM
TSL2550-RS232EVM Summary of contents
Page 1
... The TSL2550EVM helps facilitate evaluation of the TAOS Ambient Light Sensor (ALS). Two evaluation module options are available which simply connect to a personal computer via a PCMCIA card slot or serial communication port. Both evaluation modules include application software allowing the user to easily control various features of the TSL2550 device. Figure group picture of both evaluation modules ...
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... Environmental Parameters: Temperature: 0°C - 55°C Humidity 90% Software Installation: CD-ROM When the PC is turned off, the TSL2550 PCMCIA EVM card should be inserted into a PCMCIA card slot that allows light to reach the clear plastic aperture on top of the card. If possible, the ALS card should be placed on top ...
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... SXKey sticking out at 9 o’clock, use the four bottom header pins. Vss is the bottom pin. The external SMBus header pins (two identical 5-pin headers) are labeled on the housing’s panel cutout: +5 for Vdd, D for data, G for ground, and C for clock. See Figure 2 for a schematic diagram of the TSL2550 Serial EVM. ...
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... Figure 2. TSL2550 Serial EVM Schematic www.taosinc.com ...
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... See Figure 3 regarding a sample screen capture of the software. The EVM application constantly monitors the ambient light level through the use of two photodiodes on the TSL2550. One of the photodiodes (Channel 0) is sensitive to both visible and infrared light, while the second photodiode (Channel 1) is sensitive primarily to infrared light. An integrating ADC converts the photodiode currents to Channel 0 and Channel 1 digital outputs ...
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... The TSL2550 contains two ADC registers (channel 0 and channel 1). Each of the two ADC value registers contains seven bits. Bits 6 through 0 contain the 7-bit code representing the ADC count value that is proportional to the photodetector current. Each ADC register contains two components to determine the logarithmic ADC count value: “Chord” ...
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... Fluorescent Daylight (shade) Incandescent Table 3. TSL2550 Sensor Output Summary From Figure 3, the correlated color temperature of the ambient light source is roughly proportional to Ch0/Ch1 (i.e. the inverse of the ratio described in Table 3). This information may be useful in certain applications such as computer displays and television screens to perform color balance. ...
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... R ANGE The TSL2550 device has the ability to operate in “Standard” or “Extended” range mode. Normally the device operates in standard range. In standard range, the device can respond to ambient light conditions from, for example, approximately 0 to 1400 Lux under certain fluorescent lighting conditions. After about 1400 Lux, the device saturates and cannot produce valid results. ...