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SDA9401 Datasheet, PDF (35/69 Pages) List of Unclassifed Manufacturers – Scan Rate Converter using Embedded DRAM Technology Units
SDA 9401
(An,ϒ) - Output signal, field A at time n, displayed as raster ϒΙ
((A*)n,ϒ) - Output signal, field A raster interpolated into field B at time n, displayed as raster ϒ
(An Bn-1,∼+ϒΦ=ϑ=Output signal, frame AB at time n, progressive
The table below describes the different scan rate conversion algorithms and the corresponding
raster sequences. The delay between the input field and the corresponding output fields depends
on the OPDEL parameter and the default value for the delay is an half input field.
The INTERLACED signal can be used for AC-coupled deflections. Depending on the parameter
INTMODE the value of this signal will be generated. The table below shows also the definition of
this signal.
Explanation of operation mode timing
Input fields
An
Bn
time
A , B Fields available in
the internal field stores
n-1 n-1
Bn-1, An
An, Bn
Output fields
Static operation modes
OPDEL lines
an
Phase
0
bn
Phase 1
cn
Phase 2/0
dn
Phase 3/1
STOPMODE
0000
0001
0010
0100
0101
0110
0111
1000
Scan rate conversion
algorithm
not defined
AA*B*B mode I
interlaced
AABB mode I
interlaced
Multipicture mode
I
Multipicture mode
II
AAAA mode
BBBB mode
not defined
Input field
A
fOieuldtpaunt
phase 0
x
(A*)n,↑
INTMODE(3)
An,←
INTMODE(0)
An,↑
INTMODE(0)
Bn-1,↑
INTMODE(1)
An,←
INTMODE(0)
Bn-1,↑
INTMODE(0)
x
fOieuldtpbunt
phase 1
x
An,←
INTMODE(0)
An,←
INTMODE(0)
An,←
INTMODE(0)
Bn-1,←
INTMODE(1)
An,←
INTMODE(0)
Bn-1,↑
INTMODE(0)
x
Input field
B
fOieuldtpcunt
phase 2/0
x
Bn,↑
INTMODE(1)
Bn,↑
INTMODE(1)
An,↑
INTMODE(0)
Bn,↑
INTMODE(1)
An,←
INTMODE(0)
Bn,↑
INTMODE(0)
x
fOieuldtpdunt
phase 3/1
x
(B*)n,←
INTMODE(2)
Bn,↑
INTMODE(1)
An,←
INTMODE(0)
Bn,←
INTMODE(1)
An,←
INTMODE(0)
Bn,↑
INTMODE(0)
x
RMODE
0
0
0
0
0
0
0
0
Micronas
35
Preliminary Data Sheet