参数资料
型号: DDP3315CQA
厂商: MICRONAS SEMICONDUCTOR HOLDING AG
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP80
封装: PLASTIC, QFP-80
文件页数: 35/62页
文件大小: 1746K
代理商: DDP3315CQA
ADVANCE INFORMATION
40
Micronas
3.3.1. Scaler Adjustment
In case of linear scaling, most of the scaler registers
need not to be set. Only the scaler mode, active video
length, and the fixed scaler increments (SCINC1 /
SCINC2) must be written.
The adjustment of the scaler for nonlinear scaling
should use the parameters given in Table 3–6. An
example for ‘panorama vision’ mode is depicted in Fig.
3–4. It shows the scaling of the input signal and the
variation of the scaling factor during the active video
line. The scaling factor starts below 1, i.e. for the bor-
ders the video data is expanded and after it exceeds 1
it is compressed. When the picture center is reached,
the scaling factor is held constant. At the second bor-
der the scaling factor changes back symmetrically.
Fig. 3–4: Scaler operation for “panorama” mode
1
center
compression
border
zoom
border
zoom
com-
pression
ratio
input
signal
output
signal
Table 3–6: Setup values for nonlinear scaler modes
Mode
27 MHz
32 MHz
Register
‘waterglass’
border 35%
‘panorama’
border 30%
‘waterglass’
border 35%
‘panorama’
border 30%
center 3/4
center 5/6
center 4/3
center 6/5
center 3/4
center 5/6
center 4/3
center 6/5
SCINC1
1099
1064
1024
1195
1122
1024
SCINC2
1024
259
407
1024
305
489
SCINC
60
6556385442
68
46
FFLIM
715
717
758
796
833
845
831
871
SCW1
0
20
10
106
51
37
109
126
SCW1
1
156
123
106
161
166
125
126
SCW1
2
202
236
273
292
256
257
291
310
SCW1
3
338
349
273
292
366
386
307
310
SCW1
4
358
359
379
398
417
423
416
436
SCW2
0
20
10
186
177
51
37
168
175
SCW2
1
156
123
186
177
161
166
184
175
SCW2
2
384
417
354
363
373
368
350
359
SCW2
3
520
530
354
363
483
497
366
359
SCW2
4
540
534
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