VP7615 Datasheet, PDF (1/25 Pages) Mitel Networks Corporation – Colour Digital Video Camera Decoder IC

VP7615
Supersedes February 1997 edition, DS4602 - 2.4
Colour Digital Video Camera Decoder IC
Advance Information
DS4602 - 3.1 August 1997
The VP7615 iCamHost™ Processor chip can decode
the signals from a variety of iVision™ compatible digital video
cameras (such as Silicon Vision’s iCam™) and process them
for use in a host computer system. Digital cameras can offer
real cost and performance gains in applications which require
a digital video input, and iVision technology realises both
these benefits. In a typical analog camera the digitised
output from the CCD imager is normally encoded into an
analog composite video signal which then has to be re-
digitised at the input to the host system. By employing the
iVision approach the output from the camera is maintained as
a digital signal, but in a format which allows for a low cost 9-
wire connection to the host. Eliminating the unnecessary
conversion to an analog signal and back again not only saves
cost, but also avoids any possible degradation of image
quality. Other benefits include direct control of the camera
from the host and the ability to power the camera from the
host system so saving the cost of a separate power supply.
The VP7615 supports two software selectable CamPort™
interface ports, either of which can receive the digital video
from an iVision™ compatible digital video camera. The
output is a standard colour digital video signal, similar to
standard composite analog-digital decoder chips such as the
Philips SAA7110 and SAA7111. All iCamHost™ operating
modes are controlled by the host PC via an I²C interface.
Hardware I/O controls include output enable and I²C address
offset.
NOTE: iCam^TM, CamPort™ and iCamHost™ are
trademarks of Silicon Vision, Inc., Fremont, CA
ORDERING INFORMATION
VP7615 CG FP1N
FEATURES
I Accommodates different camera configurations based on
a variety of CCD imager resolutions
I Requires only a small, low-cost 9 pin mini-DIN to connect
to camera
I Receives the image signal from the camera in digital form
at a frame rate determined by the host
I Decodes all necessary synchronisation and clock signals
from the digital data stream
I Programmable gamma correction curve in RGB
colourspace
I Programmable colour-separation matrix
I Collects image status data within user-defined rectangular
gated zone of CCD sensor
I Programmable horizontal and vertical aperture correction
I Pin-strap selectable output format in 16 bit YUV 4:2:2 or 8
bit CCIR 656 YUV 4:2:2
I Test pattern generator for SMPTE colourbars
I Bypass mode to output unprocessed 8 bit CCD pixel
samples in the luminance channel
I Dual iCamPort™ camera input ports, software selectable
I Completely iVision™ Compatible
I Eight general purpose I/O pins for board level configuration
control and/or status
I Programmable polarity for HSYNC, VSYNC, HACT &
VACT control outputs
I Chip pinout is backwards compatible with VP7610