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參數(shù)資料
| 型號： | 935265763518 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | COLOR SIGNAL ENCODER, PQFP44 |
| 封裝： | PLASTIC, SOT-307, QFP-44 |
| 文件頁數(shù)： | 18/59頁 |
| 文件大?。?/td> | 232K |
| 代理商： | 935265763518 |
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2000 Mar 08
25
Philips Semiconductors
Product specication
Digital video encoder
SAA7128H; SAA7129H
Table 36 Subaddress 5DH
Table 37 BLCKL values
Notes
1. All IRE values are rounded up.
2. Output black level/IRE = BLCKL
× 2/6.29 + 28.9.
3. Output black level/IRE = BLCKL
× 2/6.18 + 26.5.
Table 38 Subaddress 5EH
BIT
SYMBOL
DESCRIPTION
7
GAINU8
MSB of the 9-bit code that sets the variable gain for the CB signal, see Table 32.
6
DECOE
real-time control:
0 = disable odd/even field control bit from RTCI
1 = enable odd/even field control bit from RTCI (see Fig.22)
5 to 0
BLCKL[5:0]
variable black level; input representation in accordance with
“ITU-R BT.601”; see
Table 37
CONDITIONS(1)
ENCODING(1)
white-to-sync = 140 IRE; note 2 recommended value: BLCKL = 58 (3AH)
BLCKL = 0; note 2
output black level = 29 IRE
BLCKL = 63 (3FH); note 2
output black level = 49 IRE
white-to-sync = 143 IRE; note 3 recommended value: BLCKL = 51 (33H)
BLCKL = 0; note 3
output black level = 27 IRE
BLCKL = 63 (3FH); note 3
output black level = 47 IRE
BIT
SYMBOL
DESCRIPTION
7
GAINV8
MSB of the 9-bit code that sets the variable gain for the CR signal, see Table 34.
6
DECPH
real-time control:
0 = disable subcarrier phase reset bit from RTCI
1 = enable subcarrier phase reset bit from RTCI (see Fig.22)
5 to 0
BLNNL[5:0]
variable blanking level, see Table 39
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