參數資料
型號： 935260567157
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： 14/59頁
文件大?。?/td> 232K
代理商： 935260567157
2000 Mar 08
21
Philips Semiconductors
Product specication
Digital video encoder
SAA7128H; SAA7129H
Table 19 Subaddress 4EH
Table 20 Subaddress 4FH
Table 21 Subaddress 50H
BIT
SYMBOL
DESCRIPTION
7to6
These 2 bits are reserved; each must be set to logic 0.
5 to 0
FADE1[5:0]
These 6 bits form factor FADE1 which determines the ratio between the MPEG and
video input signal in the resulting video data stream if the key colour 1 is detected in the
MPEG input signal.
FADE1 = 00H: 100% MPEG, 0% video
FADE1 = 3FH: 100% video, 0% MPEG; this is the default value after reset
BIT
SYMBOL
DESCRIPTION
7
CFADEM
0 = fader operates in normal mode; default state after reset
1 = the entire video input stream is faded with the colour stored in the LUT
(subaddresses 51H to 53H) regardless of the MPEG input signal. The colour keys are
disabled.
6
CFADEV
0 = fader operates in normal mode; default state after reset
1 = the entire MPEG input stream is faded with the colour stored in the LUT
(subaddresses 51H to 53H) regardless of the video input signal. The colour keys are
disabled.
5 to 0
FADE2[5:0]
These 6 bits form factor FADE2 which determines the ratio between the LUT colour
values (subaddresses 51H to 53H) and the video input signal in the resulting video data
stream if the key colour 2 is detected in the MPEG input signal.
FADE2 = 00H: 100% LUT colour, 0% video
FADE2 = 3FH: 100% video, 0% LUT colour; this is the default value after reset
BIT
SYMBOL
DESCRIPTION
7to6
These 2 bits are reserved; each must be a logic 0.
5 to 0
FADE3[5:0]
These 6 bits form factor FADE3 which determines the ratio between the MPEG and
video input signal in the resulting video data stream if neither the key colour 1 nor the
key colour 2 is detected in the MPEG input signal.
FADE3 = 00H: 100% MPEG, 0% video
FADE3 = 3FH: 100% video, 0% MPEG; this is the default value after reset
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