AD9942BBCZ datasheet(20/36 Pages) AD

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AD9942

Rev. A | Page 20 of 36

Table 17. Channel A and Channel B H1X to H4X CONTROL, RG_X CONTROL, DRVCONTROL,

and SAMPCONTROL Register Parameters

Parameter

Length

(Bit)

Range

Description

Polarity

High/low

Polarity control for H1X and RG_X (0 = no inversion; 1 = inversion).

Positive Edge

0 to 47 edge locations

Positive-edge location for H1X, H3X, and RG_X.

Negative Edge

0 to 47 edge locations

Negative-edge location for H1X and RG_X.

Sample Location

0 to 47 sample locations

Sampling location for SHP and SHD.

Drive Control

0 to7 current steps

Drive current for H1X to H4X and RG_X outputs, 0 to 7 steps of 4.1 mA each.

DOUT Phase

0 to 47 edge locations

Phase location of data outputs with respect to pixel period.

Table 18. Channel A and Channel B Precision Timing Edge Locations

Quadrant

Edge Location (Decimal)

0 to 11

000000 to 001011

12 to 23

16 to 27

010000 to 011011

III

24 to 35

32 to 43

100000 to 101011

36 to 47

48 to 59

110000 to 111011

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