TCS3404 Datasheet, PDF (25/40 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – DIGITAL COLOR SENSORS

TCS3404, TCS3414
DIGITAL COLOR SENSORS
APPLICATION INFORMATION: SOFTWARE
TAOS137A − APRIL 2011
When the INTEG_MODE field value is set to 10b, an externally-controlled synchronization input (SYNC) is used
to trigger the start of an integration period. The integration period starts on the rising edge of the SYNC pulse,
triggers a single, internally-timed integration cycle, and continues until the Nominal Integration Time, as defined
in the PARAM field, is completed.
SYNC IN
Integration Period
Time duration determined by
PARAM field (nominal
integration time)
INTERRUPT
A
B
NOTE: ADC_EN must be toggled (i.e. from high to low and back to high again) before next integration cycle
Figure 23. One-Shot Integration (INTEG_MODE 10b) Falling Edge
1. Enable ADC_EN (= 1)
2. Set PARAM for desired integration cycle (12ms, 100ms, or 400ms)
3. Set INTEG_MODE to 10b
4. Disable SYNC and clear INTR
5. Read channel data
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