Datasheet

ADC Conversion
Pulse Repetition Period
T = 1 / PRF
ADC Reset
ADC_RDY Pin
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
0%
25%
50%
75%
ADC Data
Average of
ADC data 1 to 3 are
written into
register 42.
Average of
ADC data 5 to 7
are written into
register 43.
Average of
ADC data 9 to 11 are
written into
register 44.
Average of
ADC data 13 to 15 are written
into register 45.
Register 42  register 43
are written into register 46.
Register 44 register 45
are written into register 47.
0%
17 18 19 20
0 T
1.0 T
AFE4490
SBAS602F –DECEMBER 2012–REVISED OCTOBER 2013 www.ti.com
NOTE: Example is with three averages. The value of the NUMAVG[7:0] register bits = 2.
Figure 66. ADC Data with Averaging Enabled
36 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: AFE4490