ADVANCE INFORMATION
The component interface of the VPC 32xxD provides a
high-quality analog RGB interface with character inser-
tion capability. It also allows appropriate processing of
external sources, such as MPEG2 set-top boxes in
transparent (4:2:2) quality. Furthermore, it transforms
RGB/Fast Blank signals to the common digital video
bus and makes those signals available for 100-Hz up-
conversion or double-scan processing. In some Euro-
pean countries (Italy), this feature is mandatory.
The IP indicates memory based image processing,
such as scan rate conversion, vertical processing
(Zoom), or PAL+ reconstruction. The VPC supports
memory based applications through line-locked clocks,
syncs and data. Additionally, the VPC323xD provides
a 656-output interface and FIFO control signals.
Examples:
– Europe: 15 kHz/50 Hz
→
32 kHz/100 Hz interlaced
– US: 15 kHz/60 Hz
→
32 kHz/60 Hz non-interlaced
1.3. VPC Applications
Fig. 1–2 depicts several VPC applications. Since the
VPC functions as a video front-end, it must be comple-
mented with additional functionality to form a complete
TV set.
The DDP 33x0 contains the video back-end with video
postprocessing (contrast, peaking, DTI,...), H/V-deflec-
tion, RGB insertion (SCART, Text, PIP,...) and tube
control (cutoff, white drive, beam current limiter). It
generates a beam scan velocity modulation output
from the digital YC
r
C
b
and RGB signals. Note that this
signal is not generated from the external analog RGB
inputs.
a)
YCrCb/RGBFB
CVBS
VPC
32xxD
FIFO
YCrCb/RGBFB
CVBS
RGB
VPC
32xxD
DDP
3300A
RGB
H/V
Defl.
RGB
H/V
Defl.
RGB
H/V
Defl.
b)
YCrCb
CVBS
VPC
32xxD
IP
DDP
3310B
c)
YCrCb/RGBFB
CVBS
VPC
32xxD
IP
DDP
3310B
Fig. 1–2:
VPC 32xxD applications
a) 15 kHz application Europe
b) double scan application (US, Japan) with YC
r
C
b
inputs
c) 100 Hz application (Europe) with RGBFB inputs
Micronas
7
MICRONAS [ MICRONAS ]
