CIP 3250A
ADVANCE INFORMATION
2.12. Selectable RGB/YUV Output Formats
In a DIGIT 3000 environment, the CIP 3250A can pro-
cess either RGB or YUV signals from the analog input,
mix it with the digital YUV input data – controlled by the
Fast Blank input, and generate low pass filtered output
data in the YUV 4:2:2 (16 bit) DIGIT 3000 format. Addi-
tionally, the signed format of the UV signal is program-
mable between 2’s complement and binary offset. The
sampling rate is derived from the VPC 320x and ranges
from 13.5 to 20.25 MHz for all of the video standards.
– RGB, 8-bit pure binary (24 bit)
– YUV 4:2:2 (16 bit) for DIGIT 2000, DIGIT 3000, and
Philips/Siemens
– YUV4:1:1(12bit)forDIGIT2000andPhilips/Siemens
– UV format selectable between 2’s complement and
binary offset
In a first stand alone application, the CIP 3250A can
serve as a RGB video analog-to-digital converter to out-
put digital R, G, and B in a pure binary format, 8 bits pure
binary per channel, and a sampling rate between 13.5
MHz and 20.25 MHz.
The U and V chrominance samples are transmitted in
multiplex operation. Depending on the application, the
CIP 3250A provides the following different output for-
2
mats of the YUV signals (selectable via I C-Bus):
– 4:1:1orthogonaloutputformatforDIGIT3000applica-
tions
In a second stand alone application, the CIP 3250A can
serveasaYUVorRGB(withthematrixswitchedon)vid-
eo analog-to-digital converter to output digital YUV, sup-
porting various formats such as YUV 4:1:1 (12 bit) from
DIGIT 2000 and Philips, YUV 4:2:2 (16 bit) from DIGIT
2000 and DIGIT 3000, or YUV 4:2:2 (16 bit) industry
standard. Additionally, the signed format of the UV sig-
nal is programmable between 2’s complement and
binary offset. A sampling rate between 13.5 MHz and
20.25 MHz can be selected, and the YUV output data
can be low pass filtered.
– 4:2:2orthogonaloutputformatforDIGIT3000applica-
tions
– 4:1:1 output format for standard DIGIT 2000 applica-
tions
– 4:2:2 output format for DIGIT 2000 applications
2
Refer to I C registers <15> to <16> to select the desired
output format. Additionally, the CIP 3250A provides con-
version of ITURY (luma) to DIGIT 2000 Y (luma) output
In a DIGIT 2000 environment, the CIP 3250A can pro-
cess either RGB or YUV signals from the analog Input,
mix it with the digital YUV Input data – controlled by the
Fast Blank input, and generate low pass filtered output
dataintheYUV4:1:1 (12bit)DIGIT2000format. Asam-
plingratelockedtothecolorsubcarrierfrequency(4*fsc)
for the NTSC or PAL video standard has to be used.
2
black levels, selectable via I C register <16>ADD16Q.
A programmable two-dimensional active video signal
(AVO) allows the write control of external video memory
directly. The characteristic of the YUV output is select-
able between open-drain or push-pull.
Table 2–3: Digital output selection
<15>
YUVO
<15>
MOD411ON
<15>
IND
<15>
UVSW
<15>
DTI
Digital
Output Format
1
1
1
1
0
1
1
0
0
0
0
1
0
1
0
0
0
1
0
0
0
0
1
0
0
DIGIT 2000 4:1:1
orthogonal 4:1:1
DIGIT 2000 4:2:2
DIGIT 3000 4:2:2
4:4:4
Micronas
13
MICRONAS [ MICRONAS ]
