lf3370 LOGIC Devices Incorporated, lf3370 Datasheet - Page 6

• Manufacturer Part Number: lf3370
• Description: High-definition Video Format Converter
• Manufacturer: LOGIC Devices Incorporated

DEVICES INCORPORATED
LF3370’s core. Data may be presented on
input ports A
channels of non-interleaved input data, one
channel non-interleaved and one channel
interleaved input data, or one channel of
interleaved data (see Table 1 for various
video input schemes). D
channel input port; the Key channel is
F
F
RESET
C’
D’
B’
RESET
CLK/2*
A'
B'
C'
D'
A’
SYNC
SYNC
IGURE
IGURE
12-0**
12-0**
12-0**
D
A
D
A
B
12-0**
12-0**
12-0**
12-0**
12-0**
CLK
CLK
12-0
12-0
12-0
12-0
12-0
**
*
*
4. I
5. I
Core Clock (Internally Generated and Synchronized to CLK by RESET) Used Only When Single Channel Interleaved Input or Output Video is Used.
Demultiplexed Input Data (Output of Demux Section)
Demultiplexed Input Data (Output of Demux Section)
12-0
NPUT
NPUT
, B
12-0
1
P
P
, and C
ROCESSING
ROCESSING
12-0
1
2
is the Key
12-0
2
3
as three
4:2:2:4 (I
4:2:2:4 (I
4
3
CB
simply passed through the input
demultiplexer with a latency that matches
the other three channels.
If video data is non-interleaved and
presented to input ports A
C
The three channels are passed unmodified
into the LF3370 core with a delay of 3 CLK
0
NTERLEAVED
4
5
NTERLEAVED
K
12-0
0
CB
Y
, no demultiplexing is performed.
Y
K
0
0
0
6
0
5
CR
CR
Y
K
1
1
0
6
C
0
7
K
L
HROMA ON
1
UMA
CB
Y
Y
K
1
2
2
2
8
7
/C
6
High-Definition Video Format Converter
CB
HROMA ON
CR
Y
K
3
3
2
8
2
9
12-0
C
Y'
K'
K
0
0
2
HANNEL
CR'
CB'
Y’
K’
, B
CB
Y
Y
K
0
0
2
4
4
0
0
10
12-0
4
9
Y'
K'
1
1
C
CB’
CR’
, and
CR
CR
HANNEL
B)
Y
K
5
5
0
0
10
2
11
4
Y'
K'
K
2
2
3
CB'
CR'
Y’
K’
CB
Y
Y
K
1
1
6
6
3
cycles. For this operation, bits 0 and 1
must both be set to 1 in Configuration
Register 0 (see Table 5).
If video data is on two channels (see Figure
4), one channel of non-interleaved video
and one channel of interleaved video, it is
assumed that non-interleaved video is
presented to input port A
11
12
2
2
6
A)
Y'
K'
3
3
Video Imaging Products
CB
CR
Y
K
7
7
12
13
4
6
Y'
K'
K
4
4
4
CB'
CR'
Y’
K’
CB
Y
Y
K
2
2
4
14
8
8
13
4
4
8
Y'
K'
5
5
CB’
CR’
CR
CR
Y
K
14
9
9
1
1
15
4
8
Y'
K'
K
6
6
5
CR'
CB'
CB
Y’
K’
Y
K
Y
12-0
3
3
10
10
5
10
15
6
6
16
03/13/2001–LDS.3370-F
Y'
K'
7
7
(i.e., Luma)
CR
CB
Y
K
LF3370
11
11
10
16
17
6
Y'
K'
8
8
CB'
CR'
CB
Y
K
12
12
6
6
18
17
12