AD9974BBCZ datasheet(19/52 Pages) AD

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AD9974

Rev. A | Page 19 of 52

Table 11. CLPOB and PBLK Pattern Registers

Parameter

Length (Bits)

Range

Description

CLPOB0_TOG1

0 to 8191 pixel location

First CLPOB0 toggle position within the line for each V-sequence.

CLPOB0_TOG2

0 to 8191 pixel location

Second CLPOB0 toggle position within the line for each V-sequence.

CLPOB1_TOG1

0 to 8191 pixel location

First CLPOB1 toggle position within the line for each V-sequence.

CLPOB1_TOG2

0 to 8191 pixel location

Second CLPOB1 toggle position within the line for each V-sequence.

CLPOB_POL

High/low

Starting polarity of CLPOB for each V-sequence [8:0] (in field registers).

CLPOB_PAT

0 to 9 settings

CLPOB pattern selection for each V-sequence [8:0] (in field registers).

CLPOBMASKSTART

0 to 8191 pixel location

CLPOB mask start position: three values available (in field registers).

CLPOBMASKEND

0 to 8191 pixel location

CLPOB mask end position: three values available (in field registers).

PBLK0_TOG1

0 to 8191 pixel location

First PBLK0 toggle position within the line for each V-sequence.

PBLK0_TOG2

0 to 8191 pixel location

Second PBLK0 toggle position within the line for each V-sequence.

PBLK1_TOG1

0 to 8191 pixel location

First PBLK1 toggle position within the line for each V-sequence.

PBLK1_TOG2

0 to 8191 pixel location

Second toggle position within the line for each V-sequence.

PBLK_POL

High/low

Starting polarity of PBLK for each V-sequence [8:0] (in field registers).

PBLK_PAT

0 to 9 settings

PBLK pattern selection for each V-sequence [8:0] (in field registers).

PBLKMASKSTART

0 to 8191 pixel location

PBLK mask start position: three values available (in field registers).

PBLKMASKEND

0 to 8191 pixel location

PBLK mask end position: three values available (in field registers).

HBLK

BASIC HBLK PULSE IS GENERATED USING HBLKTOGE1 AND HBLKTOGE2 REGISTERS (HBLKALT = 0).

BLANK

HBLKTOGE1

HBLKTOGE2

Figure 25. Typical Horizontal Blanking Pulse Placement (HBLKMODE = 0)

HBLK

H1/H3

H2/H4

THE POLARITY OF H1/H3 DURING BLANKING IS PROGRAMMABLE

(H2/H4 POLARITY IS SEPARATELY PROGRAMMABLE)

Figure 26. HBLK Masking Control

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