Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- GENERAL DESCRIPTION
- FUNCTIONAL BLOCK DIAGRAM
- TABLE OF CONTENTS
- REVISION HISTORY
- SPECIFICATIONS
- ABSOLUTE MAXIMUM RATINGS
- PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
- TERMINOLOGY
- EQUIVALENT INPUT/OUTPUT CIRCUITS
- TYPICAL PERFORMANCE CHARACTERISTICS
- SYSTEM OVERVIEW
- SERIAL INTERFACE TIMING
- COMPLETE REGISTER LISTING
- PRECISION TIMING HIGH SPEED TIMING GENERATION
- HORIZONTAL CLAMPING AND BLANKING
- GENERATING SPECIAL HBLK PATTERNS
- POWER-UP PROCEDURE
- ANALOG FRONT END DESCRIPTION AND OPERATION
- APPLICATIONS INFORMATION
- OUTLINE DIMENSIONS

AD9949
Rev. B | Page 22 of 36
HD
HBLK
THE POLARITY OF H1 DURING BLANKING IS PROGRAMMABLE (H2 IS OPPOSITE POLARITY OF H1).
H1/H3
H1/H3
H2/H4
...
...
...
...
03751-024
Figure 23. HBLK Masking Control
HBLK
SPECIAL H-BLANK PATTERN IS CREATED USING MULTIPLE HBLK TOGGLE POSITIONS.
H1/H3
H2/H4
TOG1
TOG2
TOG3
TOG4
TOG5
TOG6
03751-025
Figure 24. Generating Special HBLK Patterns
Table 20. Horizontal Sequence Control Parameters for CLPOB, PBLK, and HBLK
Register Length Range Description
SCP 12b 0 to 4095 Line Number CLOB/PBLK/HBLK SCP to Define Horizontal Regions 0 to 3.
SPTR 2b 0 to 3 Sequence Number Sequence Pointer for Horizontal Regions 0 to 3.