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參數(shù)資料
| 型號： | 935264425557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顏色信號轉(zhuǎn)換 |
| 英文描述： | COLOR SIGNAL ENCODER, PQFP44 |
| 封裝： | PLASTIC, SOT-307, QFP-44 |
| 文件頁數(shù)： | 9/35頁 |
| 文件大?。?/td> | 261K |
| 代理商： | 935264425557 |
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1997 Jan 06
17
Philips Semiconductors
Preliminary specication
Digital Video Encoder (ConDENC)
SAA7120; SAA7121
Table 19 Subaddress 61
Table 20 Subaddress 62H
Table 21 Subaddress 62H
DATA BYTE
LOGIC
LEVEL
DESCRIPTION
FISE
0
864 total pixel clocks per line; default after reset
1
858 total pixel clocks per line
PAL
0
NTSC encoding (non-alternating V component)
1
PAL encoding (alternating V component); default after reset
SCBW
0
enlarged bandwidth for chrominance encoding (for overall transfer characteristic of
chrominance in baseband representation see Figs 3 and 4)
1
standard bandwidth for chrominance encoding (for overall transfer characteristic of
chrominance in baseband representation see Figs 3 and 4); default after reset
YGS
0
luminance gain for white
black 100 IRE; default after reset
1
luminance gain for white
black 92.5 IRE including 7.5 IRE set-up of black
INPI
0
PAL switch phase is nominal; default after reset
1
PAL switch phase is inverted compared to nominal
DOWN
0
DACs for CVBS, Y and C in normal operational mode; default after reset
1
DACs for CVBS, Y and C forced to lowest output voltage
DATA BYTE
LOGIC
LEVEL
DESCRIPTION
RTCE
0
no real time control of generated subcarrier frequency
1
real time control of generated subcarrier frequency through SAA7151B or SAA7111
(timing see Fig.10)
DATA BYTE
DESCRIPTION
CONDITIONS
REMARKS
BSTA
amplitude of colour burst; input
representation in accordance
with “CCIR 601”
white-to-black = 92.5 IRE;
burst = 40 IRE; NTSC encoding
recommended value:
BSTA = 63 (3FH)
BSTA = 0 to 2.02
× nominal
white-to-black = 92.5 IRE;
burst = 40 IRE; PAL encoding
recommended value:
BSTA = 45 (2DH)
BSTA = 0 to 2.82
× nominal
white-to-black = 100 IRE;
burst = 43 IRE; NTSC encoding
recommended value:
BSTA = 67 (43H)
BSTA = 0 to 1.90
× nominal
white-to-black = 100 IRE;
burst = 43 IRE; PAL encoding
recommended value:
BSTA = 47 (2FH)
BSTA = 0 to 3.02
× nominal
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