OV6620 Datasheet, PDF (20/31 Pages) List of Unclassifed Manufacturers – SINGLE-CHIP CMOS CIF COLOR DIGITAL CAMERA

OMNIVISION TECHNOLOGIES, Inc.
Advanced Information
Preliminary
OV6620/OV6120
Table 12. Timing Characteristics
SINGLE IC CMOS COLOR AND B/W DIGITAL CAMERAS
Symbol
Descriptions
t_r,t_f
PCLK rise/fall time
t_pdd
PCLK to data valid
t_phd
PCLK to HREF delay
Max
Typ
Min Units
15
-
-
ns
15
-
-
ns
20
10
5
ns
Table 13. Zoom Video Port AC Parameters
Symbol
Parameter
t1
PCLK fall timing
t2
PCLK low time
t3
PCLK rise time
t4
PCLK high time
t5
PCLK period
t6
Y/UV/HREF setup time
t7
Y/UV/HREF hold time
t8
VSYNC setup/hold time to HREF
Min.
4 ns
50 ns
4 ns
50 ns
106 ns
10 ns
20 ns
1 us
Max.
8 ns
8 ns
Notes:
1. In Interlaced Mode, there are Even/Odd field different (t8). When In Progressive Scan Mode, only frame timing same as
Even field(t8).
2. After VSYNC falling edge, OV6620 will output black reference level, the line number is T_vs, which is the line number be-
tween the 1st HREF rising edge after VSYNC falling edge and 1st valid data CHSYNC rising edge. Then valid data, then
black reference, line number is T_ve, which is the line number between last valid data CHSYNC rising edge and 1st
CHSYNC rising edge after VSYNC rising edge. The black reference output line number is dependent on vertical window
setting.
3. When in default setting, T_vs = 14 * T_line, which is changed with register VS[7:0]. VS[7:0] step equal to 1 line.
4. When in default setting, T_ve = 4 * T_line for Odd Field, T_ve = 3 * T_line for Even Field, which is changed with register VE[7:0].
VE[7:0] step equal to 1 line.
20
Version 1.11
14 May 1999