7-Pin TCS3771 DB Schematic

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
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