MIKROE-390 mikroElektronika, MIKROE-390 Datasheet - Page 2

• Manufacturer Part Number: MIKROE-390
• Description: Data Conversion IC Development Tools LIGHT TO FREQUENCY 2 ADAPTER BOARD
• Manufacturer: mikroElektronika
• Type: Light to Frequency Convertersr

Specifications of MIKROE-390

• Rohs: yes
• Product: Additional Boards
• Tool Is For Evaluation Of: TSL230BR
• Interface Type: IDC10
• Operating Supply Voltage: 3.3 V, 5 V
• Dimensions: 29.46 mm x 16.89 mm
• For Use With: mikroElektronika Development Systems

MikroElektronika
Light To Frequency 2
The Light to Frequency 2 additional board is used to convert light into frequency.
Key features:
How to connect the board?
The Light to Frequency 2 board is connected to a development system via a 2x5 connector CN1 on the additional board
and one of 2x5 port connectors on the development system.
How to use the board?
The operation of this additional board is based on converting light into square wave voltage pulses or pulse train. The
frequency of voltage pulses obtained in this way is directly proportional to light intensity received by the on-board sensor.
The higher light intensity on the sensor, the higher pulse frequency.
The sensitivity of the on-board sensor depends on the logic levels of pins S1 and S0, table 1. The pulse frequency may
be reduced by dividing with numbers contained in table 2.
Table 1
S1
H
H
L
L
S0
H
H
L
L
- Communicates directly with a microcontroller;
- Absolute output frequency tolerance of ±5%;
- Nonlinearity error typically 0.2% at 100 kHz;
- Power supply 3.3 or 5V DC.
SENSITIVITY
Power down
100X
10X
1X
Table 2
S3
H
H
L
L
S2
H
H
L
L
Figure 1: Light to Frequency 2 additional board
f o SCALING (divided by)
100
10
1
2
The meaning of deisgnations used in the tables:
L
H
- Logic 0
- Logic 1