MAX9568 Evaluation Kit
Table 1. Video Standard Output Decoding
TV STANDARD
CLASSIFICATION
FR
MAX9568 EV KIT OUTPUT PADS
SDTV HDTV
HL
525i
625i
525p/480p
625p/576p
720p
1080i/60
1080i/50
SDTV
SDTV
EDTV
EDTV
HDTV
HDTV
HDTV
High
Low
High
Low
High
High
Low
High
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
High
High
High
Low
High
Low
High
Low
High
High
Frame Rate Output (FR)
The MAX9568 EV kit provides a frame rate output (FR)
PCB pad to indicate the frame rate of the video input
signal. The FR PCB pad outputs a logic-high when the
frame rate is 60Hz, and a logic-low when the frame rate
is 50Hz (see Table 1).
Loss-of-Sync Output ( LOS )
The MAX9568 EV kit provides a loss-of-sync output
( LOS ) PCB pad to indicate the presence of a valid
video input signal. The LOS PCB pad outputs a logic-
low when there is no valid sync or video signal at the
input, and a logic-high when a valid video sync pulse is
detected.
Clamp Pulse Output ( CLAMP )
The MAX9568 EV kit provides a clamp pulse output
( CLAMP ) PCB pad to output a black-level clamping
signal. The CLAMP PCB pad outputs a logic-low when
the clamp signal is present.
Coast ( COAST )
The MAX9568 EV kit provides a coast ( COAST ) PCB
pad for the coast output signal. The COAST PCB pad
outputs a logic-low during the vertical interval to control
a phase-locked loop (PLL) oscillator to enable it to
coast through the vertical interval.
Odd and Even Field Detection ( ODD /EVEN)
The MAX9568 EV kit provides an odd and even field
detection ( ODD /EVEN) PCB pad to indicate the odd or
even field of an interlaced video signal. The ODD /EVEN
PCB pad outputs a logic-high to indicate an even field,
and a logic-low to indicate an odd field.
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