Datasheet

Running the Software

www.ti.com

Figure 21. AFE4400: Device Configuration: Rx Stage

4.1.1.4 Timing Controls Subtab

The Timing Controls subtab under the Device Configuration tab, shown in Figure 22 for AFE4490 and

Figure 23 for AFE4400, consists of the following settings:

1. Enter the Pulse Repetition Frequency(PRF) and Duty Cycle % and click the SET button to

automatically set the following:

(a) LED1 (IR) and LED2 (Red) ON and OFF time,

(b) Rx sample start and end time for 4 channels (LED1, LED1 Ambient, LED2, LED2 Ambient)

2. Save the timing settings based on PRF and duty cycle to a configuration file

3. Load the timing settings based on PRF and duty cycle from a configuration file

4. Timer Enable selector

5. Timer Counter RESET button

6. Set Number of Averages (available for AFE4490 device only)

AFE4400 and AFE4490 Development Guide SLAU480A–January 2013–Revised February 2013

Submit Documentation Feedback