參數(shù)資料
型號: SDA9401
廠商: Electronic Theatre Controls, Inc.
英文描述: Scan Rate Converter using Embedded DRAM Technology Units
中文描述: 掃描頻率轉(zhuǎn)換器采用嵌入式DRAM技術(shù)股
文件頁數(shù): 35/69頁
文件大?。?/td> 1142K
代理商: SDA9401
SDA 9401
Micronas
35
Preliminary Data Sheet
(A
n
,
) - Output signal, field A at time n, displayed as raster
Ι
((A*)
n
,
) - Output signal, field A raster interpolated into field B at time n, displayed as raster
(A
n
B
n-1
,
+
Φ==
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
S
tatic operation modes
Input field
A
Input field
B
STOPMODE
Scan rate conversion
algorithm
Output
field a
n
phase 0
Output
field b
n
phase 1
Output
field c
n
phase 2/0
Output
field d
n
phase 3/1
RMODE
0000
0001
not defined
AA*B*B mode I
interlaced
AABB mode I
interlaced
Multipicture mode
I
Multipicture mode
II
AAAA mode
x
(A*)
n
,
INTMODE(3)
x
A
n
,
INTMODE(0)
x
B
n
,
INTMODE(1)
x
(B*)
n
,
INTMODE(2)
0
0
0010
A
n
,
INTMODE(0)
A
n
,
INTMODE(0)
B
n
,
INTMODE(1)
B
n
,
INTMODE(1)
0
0100
A
n
,
INTMODE(0)
A
n
,
INTMODE(0)
A
n
,
INTMODE(0)
A
n
,
INTMODE(0)
0
0101
B
n-1
,
INTMODE(1)
B
n-1
,
INTMODE(1)
B
n
,
INTMODE(1)
B
n
,
INTMODE(1)
0
0110
A
n
,
INTMODE(0)
B
n-1
,
INTMODE(0)
x
A
n
,
INTMODE(0)
B
n-1
,
INTMODE(0)
x
A
n
,
INTMODE(0)
B
n
,
INTMODE(0)
x
A
n
,
INTMODE(0)
B
n
,
INTMODE(0)
x
0
0111
BBBB mode
0
1000
not defined
0
o
A
n
B
n
time
Input fields
a
n
Phase
0
b
n
Phase 1
c
n
Phase 2/0
d
n
Phase 3/1
Output fields
B
n-1
, A
n
Fields available in
the internal field stores
A
n-1
, B
n-1
A
n
, B
n
OPDEL lines
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