LMH1980 Datasheet, PDF (7/14 Pages) National Semiconductor (TI) – Auto-Detecting SD/HD/PC Video Sync Separator

SD/EDTV Horizontal Interval Timing Diagram
FIGURE 9. SD/EDTV Horizontal Interval with Bi-level Sync
30010308
SDTV Horizontal Interval Timing Characteristics
V_CC = 3.3V , T_A = 25°C, No Input Filter, PAL Video Input from Tek TG700 Generator with AVG7 SD video module
Symbol
Parameter
Conditions
Typ
td_CSOUT Composite Sync Output Propagation Delay from Input See Figure 9
525
Sync Reference (O_H)
td_HSOUT Horizontal Sync Output Propagation Delay from Input See Figure 9
530
Sync Reference (O_H)
td_BPOUT
Burst/Back Porch Timing Output Propagation Delay from See Figure 9
400
Input Sync Trailing Edge
T_HSOUT
Horizontal Sync Output Pulse Width
See Figure 9
2.5
T_BPOUT
Burst/Back Porch Timing Output Pulse Width
See Figure 9
3.0
EDTV Horizontal Interval Timing Characteristics
V_CC = 3.3V , T_A = 25°C, No Input Filter, 576P Video Input from Tek TG700 Generator with AVG7 SD module
Symbol Parameter
Conditions
Typ
td_CSOUT Composite Sync Output Propagation Delay from Input See Figure 9
170
Sync Reference (O_H)
td_HSOUT Horizontal Sync Output Propagation Delay from Input See Figure 9
175
Sync Reference (O_H)
td_BPOUT Burst/Back Porch Timing Output Propagation Delay from See Figure 9
485
Input Sync Trailing Edge
T_HSOUT
Horizontal Sync Output Pulse Width
See Figure 9
2.3
T_BPOUT
Burst/Back Porch Timing Output Pulse Width
See Figure 9
350
Units
ns
ns
ns
µs
µs
Units
ns
ns
ns
µs
ns
7
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