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ISL29028IROZ-T7 数据表(PDF) 11 Page - Intersil Corporation |
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ISL29028IROZ-T7 数据表(HTML) 11 Page - Intersil Corporation |
11 / 15 page 11 FN6780.1 March 2, 2010 Suggested PCB Footprint It is important that users check the “Surface Mount Assembly Guidelines for Optical Dual FlatPack No Lead (ODFN) Package” before starting ODFN product board mounting. (http://www.intersil.com/data/tb/TB477.pdf) Layout Considerations The ISL29028 is relatively insensitive to layout. Like other I2C devices, it is intended to provide excellent performance even in significantly noisy environments. There are only a few considerations that will ensure best performance. Route the supply and I2C traces as far as possible from all sources of noise. A 0.1µF and 1µF power supply decoupling capacitors need to be placed close to the device. ADDR0 1 GND 3 REXT 4 SDA INT 7 IRDR 8 ISL29028 R1 10kΩ R2 10kΩ REXT 499kΩ VDD MICROCONTROLLER INT SDA SLAVE_0 SLAVE_1 I2C SLAVE_n I2C MASTER SCL SDA SCL SDA VI2C_PULL-UP 6 R3 10kΩ SCL 2 VDD 5 C2 0.1µF FIGURE 5. ISL29028 TYPICAL CIRCUIT SCL C1 1µF VIR-LED Typical Performance Curves V DD = 3.0V, REXT = 499kΩ FIGURE 6. SPECTRUM OF FOUR LIGHT SOURCES NORMALIZED BY LUMINOUS INTENSITY (LUX) FIGURE 7. ISL29028 SENSITIVITY TO DIFFERENT WAVELENGTHS 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 350 550 750 950 WAVELENGTH (nm) FLUORESCENT SUN INCAND. HALOGEN 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 300 400 500 600 700 800 900 1000 1100 WAVELENGTH (nm) ALS HUMAN EYE IR/PROX ISL29028 |
类似零件编号 - ISL29028IROZ-T7 |
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类似说明 - ISL29028IROZ-T7 |
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