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ISL29020IROZ-EVALZ Arkusz danych(PDF) 8 Page - Intersil Corporation |
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ISL29020IROZ-EVALZ Arkusz danych(HTML) 8 Page - Intersil Corporation |
8 / 11 page 8 FN6505.0 September 26, 2008 Suggested PCB Footprint It is important that the 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 ISL29020 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. Use one 0.01µF power-supply decoupling capacitor, placed close to the device. Typical Circuit A typical application for the ISL29020 is shown in Figure 6. The ISL29020’s I2C address is hardwired as 1000100. The device can be tied onto a system’s I2C bus together with other I2C compliant devices. Soldering Considerations Convection heating is recommended for reflow soldering; direct-infrared heating is not recommended. The plastic ODFN package does not require a custom reflow soldering profile, and is qualified to +260°C. A standard reflow soldering profile with a +260°C maximum is recommended. DLENS t L DLENS LIGHT PIPE ISL29020 D2 D2 > 1.5mm FIGURE 5. WINDOW WITH LIGHT GUIDE/PIPE FIGURE 6. ISL29020 TYPICAL CIRCUIT VDD 1 GND 2 REXT 3 A0 4 SCL 5 SDA 6 ISL29020 R1 10k Ω R2 10k Ω REXT 500k C1 0.01µF 2.25V TO 3.3V MICROCONTROLLER SDA SCL I2 C SLAVE_0 I2 C SLAVE_1 I2 C SLAVE_n I2 C MASTER SCL SDA SCL SDA 1.7V TO 3.6V ISL29020 |
Podobny numer części - ISL29020IROZ-EVALZ |
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Podobny opis - ISL29020IROZ-EVALZ |
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