SAA7129 Philips Semiconductors, SAA7129 Datasheet - Page 9

• Manufacturer Part Number: SAA7129
• Description: Digital video encoder
• Manufacturer: Philips Semiconductors

Philips Semiconductors
7.1.1
Figs 4 to 7 show examples on how to configure the fader
between the input ports and the outputs, separated into
the composite (and S-video) encoder and the RGB
encoder.
7.1.1.1
Input MP
the fader is then encoded simultaneously to composite
(and S-video) and RGB output (RGBIN = ENCIN = 1).
In this example, either MP
(menu) signal to be faded smoothly in and out.
7.1.1.2
Input MP
the fader is then encoded to RGB output, while the signal
coming from MP
output (RGBIN = 1, ENCIN = 0). Also in this example,
either MP
faded smoothly in and out, whereas the overlay appears
only in the RGB output connected to the TV set.
2000 Mar 08
MP A
MP B
Digital video encoder
MP A
MP B
C
A
A
A
ONFIGURATION EXAMPLES
can be faded into MP
can be faded into MP
Configuration 1
Configuration 2
or MP
MP
VP
MP
VP
B
B
FADER
FADER
Fig.4 Configuration 1.
is fed directly to composite (and S-video)
Fig.5 Configuration 2.
could be an overlay (menu) signal to be
OUTPUT
OUTPUT
A
or MP
B
B
ENCODER
RGB PATH
RGB PATH
ENCODER
. The resulting output of
. The resulting output of
B
PATH
PATH
could be an overlay
MHB575
MHB576
e.g.
video
recorder
e.g. TV
e.g. TV
e.g.
video
recorder
9
7.1.1.3
Input MP
e.g. it contains video including overlay. MP
passed through the inactive fader to the composite (and
S-video) output, assuming e.g. it contains video excluding
overlay (RGBIN = 0, ENCIN = 1).
7.1.1.4
Only MP
(and S-video) and RGB encoded (RGBIN = ENCIN = 0).
handbook, halfpage
MP A
MP B
MP A
MP B
B
B
input is in use; its signal appears both composite
is passed directly to the RGB output, assuming
Configuration 3
Configuration 4
FADER BYPASS
Fig.6 Configuration 3.
Fig.7 Configuration 4.
SAA7128H; SAA7129H
RGB PATH
ENCODER
PATH
MHB578
ENCODER
RGB PATH
PATH
Product specification
e.g. video recorder
e.g. TV
MHB577
A
is equivalently
e.g. TV
e.g.
video
recorder