參數(shù)資料
型號(hào): SAA7120H
廠商: NXP SEMICONDUCTORS
元件分類: 顏色信號(hào)轉(zhuǎn)換
英文描述: Digital video encoder
中文描述: COLOR SIGNAL ENCODER, PQFP44
封裝: 10 X 10 MM, 1.75 MM HEIGHT, PLASTIC, SOT-307-2, QFP-44
文件頁(yè)數(shù): 15/36頁(yè)
文件大小: 165K
代理商: SAA7120H
2002 Oct 11
15
Philips Semiconductors
Product specification
Digital video encoder
SAA7120H; SAA7121H
Table 15
Subaddress 5EH
Notes
1.
2.
Output black level/IRE = BLNNL
×
2/6.29 + 25.4.
Output black level/IRE = BLNNL
×
2/6.18 + 25.9; default after reset: 35H.
Table 16
Subaddress 5FH
Table 17
Logic levels and function of CCRS
DATA BYTE
DESCRIPTION
CONDITIONS
REMARKS
BLNNL
variable blanking level
white-to-sync = 140 IRE;
note 1
BLNNL = 0; note 1
BLNNL = 63 (3FH); note 1
white-to-sync = 143 IRE;
note 2
BLNNL = 0; note 2
BLNNL = 63 (3FH); note 2
logic 0
logic 1
recommended value: BLNNL = 46 (2EH)
output blanking level = 25 IRE
output blanking level = 45 IRE
recommended value: BLNNL = 53 (35H)
output blanking level = 26 IRE
output blanking level = 46 IRE
disable subcarrier phase reset bit from RTCI
enable subcarrier phase reset bit from RTCI
(see Fig.9)
DECPH
real-time control
DATA BYTE
DESCRIPTION
BLNVB
CCRS
variable blanking level during vertical blanking interval is typically identical to value of BLNNL
select cross-colour reduction filter in luminance; see Table 17
CCRS1
CCRS0
DESCRIPTION
0
0
1
1
0
1
0
1
no cross-colour reduction; for overall transfer characteristic of luminance see Fig.5
cross-colour reduction #1 active; for overall transfer characteristic see Fig.5
cross-colour reduction #2 active; for overall transfer characteristic see Fig.5
cross-colour reduction #3 active; for overall transfer characteristic see Fig.5
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