VV5409C001 View Datasheet(PDF) - Vision
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VV5409C001 Datasheet PDF : 39 Pages
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VV5409 CMOS Monochrome Sensor Datasheet (Restricted) Rev 1.0
12.1 48BGA (400G).............................................................................................................................. 74
12.2 48LCC .......................................................................................................................................... 75
13. Suggested VV5409 support circuit.............................................................................................. 76
14. Evaluation kits (EVK’s)................................................................................................................. 78
15. Ordering details ............................................................................................................................ 78
Note: In this document, where hexadecimal values are used, they are indicated by a subscript H, such as
FFH; other values are decimal.
Commercial In Confidence
cd38041a.fm
08/10/98
3
VV5409 CMOS Monochrome Sensor Datasheet (Restricted) Rev 1.0
1. Introduction
The VV5409 is a highly integrated CMOS digital imaging sensor with 3 different digital video output formats.
The sensor contains a two-stage flash, 8-bit ADC (Analogue to Digital Converter). Exposure control can be
handled automatically by the host. Other device set-ups can be controlled using the 2-wire serial-interface.
1.1 Typical applications
• Monochrome Video Surveillance/CCTV
• Biometrics
• Automotive
• Machine Vision
VV5409
Camera
Head
4-bit 409 video data
409 clk
serial comms
Host
controller
- AEC/AGC
- Custom
Video Output
Cu stom
Video
Output
Figure 1.1 : Typical block diagram: Monochrome Video application
1.2 VV5409 overview
VV5409 is a CIF format CMOS image sensor which outputs digital pixel-data at frame and line rates
compatible with either NTSC or PAL video standards. Table 1.1 summarises the main video modes.
The pixel-data is digitised by an on-chip 8-bit ADC (Figure 1.2).
All of the video modes can be programmed through the serial-interface. The various operating modes are
detailed in Section 2.
Important: The sensor’s video-data stream only contains raw pixel-data. An intelligent host co-processor is
required to perform auto-exposure and gain control, and to generate appropriate video output timing.
Mode
Clock
(MHz)
Pixel
Clock
Divisor
Image
Size
Line Time
(µs)
Lines
per
Frame
Frame
Rate
(fps)
CIF - 25 fps 7.15909
2
356 x 292 131.580969 304 24.99961
CIF - 30 fps 7.15909
2
356 x 292 109.790490 304 29.96137
PAL (656) 13.500000
2
356 x 292 64.000000
625 25.00000
NTSC (656) 13.500000
2
306 x 244 63.555564
525 29.97003
PAL (8 fsc) 35.46895
5
356 x 292 63.999639
625 25.00014
NTSC (8 fsc) 28.636360
5
306 x 244 63.555564
525 29.97003
Table 1.1 : Video Modes
1.3 Automatic Black Level Calibration
Automatic black level control ensures consistent picture quality across the whole range of operating
conditions.
Commercial In Confidence
cd38041a.fm
08/10/98
4
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