Datasheet MAX30101 (Maxim) - 26
| Manufacturer | Maxim |
| Description | High-Sensitivity Pulse Oximeter and Heart-Rate Sensor for Wearable Health |
| Pages / Page | 33 / 26 — Timing for Measurements and Data. Collection. Slot Timing in Multi-LED … |
| File Format / Size | PDF / 1.0 Mb |
| Document Language | English |
Timing for Measurements and Data. Collection. Slot Timing in Multi-LED Modes. Table 14. Slot Timing. PULSE-WIDTH SETTING (µs)
Model Line for this Datasheet
Text Version of Document
link to page 26 link to page 26 MAX30101 High-Sensitivity Pulse Oximeter and Heart-Rate Sensor for Wearable Health
Timing for Measurements and Data
setting. Figure 3 shows an example of channel slot timing
Collection
for a SpO2 mode application with a 1kHz sample rate.
Slot Timing in Multi-LED Modes
The MAX30101 can support up to three LED channels of sequential processing (Red, IR, and Green). In multi- LED modes, a time slot or period exists between active sequential channels. Table 14 displays the four possible channel slot times associated with each pulse width
Table 14. Slot Timing PULSE-WIDTH SETTING (µs) CHANNEL SLOT TIMING (TIMING CHANNEL-CHANNEL TIMING PERIOD BETWEEN PULSES) (µs) (RISING EDGE-TO-RISING EDGE) (µs)
69 358 427 118 407 525 215 505 720 411 696 1107 Red On Red Off 69μs 931μs RED LED 660nm IR On IR Off 69μs 931μs 358μs INFRARED LED 880nm Figure 3. Channel Slot Timing for the SpO2 Mode with a 1kHz Sample Rate www.maximintegrated.com Maxim Integrated │ 26
Timing for Measurements and Data
setting. Figure 3 shows an example of channel slot timing
Collection
for a SpO2 mode application with a 1kHz sample rate.
Slot Timing in Multi-LED Modes
The MAX30101 can support up to three LED channels of sequential processing (Red, IR, and Green). In multi- LED modes, a time slot or period exists between active sequential channels. Table 14 displays the four possible channel slot times associated with each pulse width
Table 14. Slot Timing PULSE-WIDTH SETTING (µs) CHANNEL SLOT TIMING (TIMING CHANNEL-CHANNEL TIMING PERIOD BETWEEN PULSES) (µs) (RISING EDGE-TO-RISING EDGE) (µs)
69 358 427 118 407 525 215 505 720 411 696 1107 Red On Red Off 69μs 931μs RED LED 660nm IR On IR Off 69μs 931μs 358μs INFRARED LED 880nm Figure 3. Channel Slot Timing for the SpO2 Mode with a 1kHz Sample Rate www.maximintegrated.com Maxim Integrated │ 26