5 D 4 3 2 1 Notes: - 4 layer PCB: 2 layers for Customer Reference and 2 layers for Evaluation. - 20 mil trace (minimum) on all power and ground routes. - Decoupling capacitors are physically close to U1 VDD and U2 VCC, respectively. - Capacitor C3 only required when driving LED from 5V0, - Designed for TSL277x, and can be used with TCS377x. - All passive components are EIA0603 except R2 and C1 which are EIA0402. - Assembly drawing: - PCB drawing: D Evaluation Schematic Components mounted on bottom-side of PCB C2 U2 R2 Open 0.1 uF 1 2 3 4 C A0 A1 A2 VSS VCC WP SCL SDA R3 Open R4 Open R5 10K 8 7 6 5 R1 O ohm 24LC04B Ground R6 Customer Reference Schematic Components mounted on top-side of PCB 0 R7 J1 0 1 2 3 4 5 6 7 VDD I2C SDA I2C SCL Interrupt DB Detect R8 22 LED VDD GND SDA SCL INT IO DB Connector B U1 1 2 3 VDD SCL GND SDA INT LDR TSL277x C1 Ground C EVDD 1 uF 6 5 4 B OSRAM LED D1 Ground TP1 C3 TP2 TP3 TP4 1uF A A Title TSL:277x Daughterboard 5 4 3 2 Size B Document Number Date: Tuesday, April 05, 2011 Rev C TE-20-00108 Sheet 1 1 of 1