TSL2561CL TAOS, TSL2561CL Datasheet - Page 29

• Manufacturer Part Number: TSL2561CL
• Description: Light to Digital Converters Ambient Light Sensor Light to Digital
• Manufacturer: TAOS

Specifications of TSL2561CL

• Data Bus Width: 20 bit
• Peak Wavelength: 640 nm, 940 nm
• Maximum Operating Frequency: 780 KHz
• Operating Supply Voltage: 2.7 V to 3.6 V
• Operating Current: 0.6 mA to 15 uA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 30 C
• Interface Type: I2C
• Maximum Fall Time: 300 ns
• Maximum Rise Time: 300 ns
• Mounting Style: SMD/SMT
• Resolution: 16 bit
• Package / Case: Chip LED
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Power Supply Decoupling and Application Hardware Circuit
The LUMENOLOGY r Company
The power supply lines must be decoupled with a 0.1 μF capacitor placed as close to the device package as
possible (Figure 18). The bypass capacitor should have low effective series resistance (ESR) and low effective
series inductance (ESI), such as the common ceramic types, which provide a low impedance path to ground
at high frequencies to handle transient currents caused by internal logic switching.
Pull-up resistors (Rp) maintain the SDAH and SCLH lines at a high level when the bus is free and ensure the
signals are pulled up from a low to a high level within the required rise time. For a complete description of the
SMBus
http://www.smbus.org/specs. For a complete description of I
review the I
A pull-up resistor (R
fashion to the SCL and SDA lines. A typical impedance value between 10 kΩ and 100 kΩ can be used. Please
note that while Figure 18 shows INT being pulled up to V
maximum
2
C Specification at http://www.semiconductors.philips.com.
PI
) is also required for the interrupt (INT), which functions as a wired-AND signal in a similar
and
APPLICATION INFORMATION: HARDWARE
R
minimum
P
Figure 18. Bus Pull-Up Resistors
V
r
BUS
R
P
Rp
www.taosinc.com
R
PI
values,
TSL2560/
TSL2561
DD
please
V
DD
, the interrupt can optionally be pulled up to V
2
C maximum and minimum Rp values, please
review
LIGHT-TO-DIGITAL CONVERTER
SDA
r
0.1 mF
SCL
the
INT
SMBus
TSL2560, TSL2561
Copyright E 2009, TAOS Inc.
TAOS059N − MARCH 2009
Specification
BUS
at
29
.