VS6663CC Datasheet, PDF (42/63 Pages) STMicroelectronics – 1.3 megapixel camera module

Video timing
VS6663CC
The equation relating the framerate to the line length, frame length and the video timing
pixel clock frequency is:
Framerate = _l--_i-_n----_e---_{_}---_l--_e---_n---^vg---^t-_t-^_h---^p-_{_}--ⁱ-_p-^x--_c-^_--_k-^c---^l-_×^k---^_--_f-_r-^f-_ar--^e--_m--^q---_{e_}---_{_m}---_l--_eh---_n-^z--_g----_t-_h----_{_}---_l-_i--_n---_e--
Table 24 provides examples of frame timing for Raw10 CSI-2 mode for 30 fps at a variety of
external clock frequencies.
Table 24. External clock frequency examples - 1.3 Mpixel resolution Raw10 30 fps
Ext clk
freq
Pre-PLL
PLL VT sys clk VT pixel VT pixel
clk div multiplier
div
clk div clk freq
Line
length
Frame
length
MHz
Integer
Integer
(Dec)
Integer Integer
MHz
Pixel clks
Lines
(Dec)
9.60
1
83
1
10
79.68
2640
1006
12.00
2
133
1
10
79.80
2640
1007
13.00
2
123
1
10
79.95
2640
1009
6.2.3
Bayer pattern
The three color (Red, Green, Blue) filters are arranged over the pixel array in a repeated 2x2
arrangement known as the Bayer Pattern. When the sensor array is read, the output order
of red, green, blue depends on the settings of vertical flip and horizontal mirror.
Figure 17 shows the read-out order for the default settings of vertical flip and horizontal
mirror turned off. Vertical flip changes the first line to be output from a green/red line to a
blue/green line and horizontal mirror changes the sequence within a line, for example,
green/red to red/green.
As shown in Figure 17, the first pixel to be readout from the imaging array will be green
followed by red.
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