ADV8005 Hardware Reference Manual
UG-707
2.
Figure 10:
Simplified Block Diagram
A simplified block diagram of the
can be seen in
. Video can be routed through the
example, the OSD can be blended before the PVSP to display the OSD on all outputs, the OSD can be blended before the output to display the
OSD on a single output. This has been divided into several modes of operation which are recommended by Analog Devices. These modes of
operation are documented in Section
and outline the most practical modes in which to configure the
The four main processing blocks of the
PVSP:
This is the main scaler of the
and contains many of the signal processing functions. This block performs motion adaptive de-
interlacing as well as scaling, ACE, FRC, cadence detection, CUE correction, RNR, BNR and MNR. PVSP utilizes the external DDR2 memory
for such processes as FRC, de-interlacing and RNR. (Refer to Section
for more details on the PVSP.)
SVSP
: This is the secondary scaler in the
and is useful when providing an additional output resolution. The input to this block can
only be progressive. This means an input format can only be connected to the SVSP if it is progressive or if it has been de-interlaced by the PVSP
block. (Refer to Section
for more details on the SVSP.)
OSD Blend:
This block overlays the generated OSD on the incoming video signal, from the Serial Video input lines or from the video TTL port.
This is determined by an alpha factor as to how transparent the OSD will be. Depending on the source of the OSD data (from an external OSD
solution or DDR2 memory), this is then synchronized with the incoming video signal. If the generated resolution is the same as the video, the
OSD is simply overlaid on the video. If both are at different resolutions, the OSD scaler will first scale the OSD data to match the incoming video.
(Refer to Section
for more details on the OSD.)
Progressive to Interlaced:
The
has two progressive to interlaced (PtoI) blocks, one of these is included as part of the SVSP. The second
is a standalone block. The function of this block is exactly as named and can be used, for example, if the user was to convert an ED format such
as 480p to a HD format such as 1080i. The PtoI block would be required as part of this conversion. (Refer to Section
for
more details on the PtoI hardware blocks.)
3
6
/
4
8
-
b
i
t
V
i
d
e
o
P
o
r
t
2
4
-
b
i
t
I
n
p
u
t
P
o
r
t
P
r
i
m
a
r
y
V
S
P
S
e
c
o
n
d
a
r
y
V
S
P
O
u
t
p
u
t
M
u
x
i
n
g
H
D
M
I
T
x
2
H
D
M
I
T
x
1
H
D
E
n
c
o
d
e
r
S
D
E
n
c
o
d
e
r
D
D
R
2
M
e
m
o
r
y
I
n
t
e
r
f
a
c
e
P
r
o
g
r
e
s
s
i
v
e
t
o
I
n
t
e
r
l
a
c
e
d
A
D
V
8
0
0
5
3
6
-
b
i
t
V
i
d
e
o
P
o
r
t
Serial
Video_
RX
2
4
-
b
i
t
I
n
p
u
t
P
o
r
t
P
r
i
m
a
r
y
V
- Deinterlacer
- Scaler
- Video enhance
S
P
S
e
c
o
n
d
a
r
y
V
-Scaler
S
P
O
u
t
p
u
t
M
u
x
i
n
g
H
D
M
I
T
x
2
H
D
M
I
T
x
1
H
D
E
n
c
o
d
e
r
S
D
E
n
c
o
d
e
r
D
D
R
2
M
e
m
o
r
y
I
n
t
e
r
f
a
c
e
P
r
o
g
r
e
s
s
i
v
e
t
o
I
n
t
e
r
l
a
c
e
d
OSD Core
- OSD scaler
- External OSD
- Internal OSD
VSP - YCbCr 4:4:4 Input and Output
Rev. A | Page 25 of 317
