Analog High-Definition Video Component

ANSI/SMPTE 240M defines analog high-definition video in 1125/60(59.94)/2.1 format.
ITU-R BT.709 (Part 1) recognizes both 1125/60/2:1 and 1250/50/2:1.

Analog High-Definition Timing Parameters with Selected Digital Relationships
	1125/60/2:1 (1125/59.94/2:1)	1250/50/2:1
Sync Type	Tri-level polar	Tri-level polar
Horizontal Timing Reference	50% point, rising edge zero crossing	50% point, rising edge zero crossing
Total Lines/Frame	1125	1250
Active Video Lines/Frame	1035	1152
Field Frequency	60 (59.94)Hz	50 Hz
Line Frequency	33.750 (33.71628372) kHz	31.250kHz
Line Period	29.62962963 (29.65925926) ms	26.00 ms
Line Blanking	3.771 ms	6.00 ms
Timing Reference to SAV	2.586 ms	3.56 ms
Back Porch	-	2.67 ms
EAV to Timing Reference	1.185 ms	1.78 ms
Front Porch	-	0.89 ms
Negative Sync Width	0.593 ms	0.89 ms
Positive Sync Width	0.593 ms	0.89 ms
Sync Amplitude	+-300 mV	+- 300 mV
Sync Rise/Fall	0.054 ms	0.050 ms
Field Pulse	-	8.00 ms
Field Period	20 ms	16.6833 ms
Field Blanking	45 lines	98 lines
Video Signal Amplitude	700 mV	700 mV
Nominal Signal Bandwidth	30 MHz R, G, B	30 MHz R, G, B

Extracted from: p24, 'A Guide to Standard and High-Definition Digital Video Measurements', 2001 Tektronix