LMH1982SQEEVAL National Semiconductor, LMH1982SQEEVAL Datasheet - Page 19

• Manufacturer Part Number: LMH1982SQEEVAL
• Description: BOARD EVAL FOR LMH1982SQE
• Manufacturer: National Semiconductor

Specifications of LMH1982SQEEVAL

• Main Purpose: Video, Video Processing
• Utilized Ic / Part: LMH1982SQE
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -

Table 5: Output Format Auto-Fill – Register Controls and Values
NOTE: TOF Reset Counter (TOF_RST register) should be programmed with the numerator
value from the ratio of (Input Frame Rate / TOF Frame Rate) after the ratio is reduced to its
lowest integer terms.
To ensure the output format configuration registers are correctly programmed to give a proper
TOF output, the following two equations should be true:
TOF Rate = Reference Clock Frequency / (Output Pixels per Line * Output Lines per Frame)
and
TOF Reset = Numerator of ratio (REF Frame Rate / TOF Rate) after reduced to lowest integer
terms.
National Semiconductor Corp.
NTSC/525I
PAL/625I
525P
625P
1280x720/60/P
1280x720/59.94/P
1280x720/50/P
1280x720/30/P
1280x720/29.97/P
1280x720/25/P
1280x720/24/P
1280x720/23.98/P
1920x1080/60/I
1920x1080/59.94/I
1920x1080/50/I
1920x1080/60/P
1920x1080/59.94/P
1920x1080/50/P
1920x1080/30/P
1920x1080/29.97/P
1920x1080/25/P
1920x1080/24/P
1920x1080/23.98/P
Video Format
Frequency
HD Clock
0x08[3-2]
1
0
1
0
0
1
0
0
1
0
0
1
0
1
0
2
3
2
0
1
0
0
1
Frequency
SD Clock
0x08[0]
Rev. 2.1, 5/13/2008
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Determined
selection of
Format and
TOF Reset
0x09-0x0A
See NOTE
Reference
Counter
Format.
Output
below.
by
TOF Ref.
0x0C[13]
Clock
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
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0x0B-0x0C
Pixels per
Total Line
Output
1716
1728
1650
1650
1980
3300
3300
3960
4125
4125
2200
2200
2640
2200
2200
2640
2200
2200
2640
2750
2750
858
864
0x0D-0x0E
Lines per
Output
Frame
1125
1125
1125
1125
1125
1125
1125
1125
1125
1125
1125
525
625
525
625
750
750
750
750
750
750
750
750