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AD9261

Rev. 0 | Page 22 of 28

Table 19. OR Threshold Levels

0x111[5:0]

Threshold (dBFS)

0x111[5:0]

Threshold (dBFS)

0x111[5:0]

Threshold (dBFS)

−36.12

−9.28

−3.45

−30.10

−8.89

−3.25

−26.58

−8.52

−3.06

−24.08

−8.16

−2.87

−22.14

−7.82

−2.68

−20.56

−7.50

−2.50

−19.22

−7.18

−2.32

−18.06

−6.88

−2.14

−17.04

−6.58

−1.97

−16.12

−6.30

−1.80

−15.29

−6.02

−1.64

−14.54

−5.75

−1.48

−13.84

−5.49

−1.32

−13.20

−5.24

−1.16

−12.60

−5.00

−1.00

−12.04

−4.76

−0.86

−11.51

−4.53

−0.71

−11.02

−4.30

−0.56

−10.56

−4.08

−0.42

−10.10

−3.87

−0.28

−9.68

−3.66

−0.14

Table 20. OR Conditions

OR Conditions

AUTORST

OR_IND

ORTHRESH[5:0]

ORTHRESH[4:0]

Description

Normal, Reset Off

00000

Digital trip: if 16-bit output > 32,767, OR = 1, else OR = 0

Digital Threshold,

Reset Off

Digital threshold: If 16-bit output > ORTHRESH, OR = 1,

else OR = 0

Full Overrange,

Reset Off

If analog trip or digital trip, OR = 1, else OR = 0

Data Valid, No Reset

If analog trip or digital trip or calibration, OR = 0, else OR = 1

Normal, Reset On

00000

Digital trip: if 16-bit output > 32,767, OR = 1, else OR = 0

Digital Threshold,

Reset On

Digital threshold: if 16-bit output > ORTHRESH, OR = 1,

else OR = 0

Full Overrange,

Reset On

If analog trip or digital trip, OR = 1, else OR = 0

Data Valid,

Reset On

If analog trip or digital trip or calibration, OR = 0 else OR = 1

1 X = don’t care.

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