參數(shù)資料
型號(hào)： SAA7127
廠商： NXP Semiconductors N.V.
英文描述： Digital video encoder
中文描述： 數(shù)字視頻編碼器
文件頁(yè)數(shù)： 21/40頁(yè)
文件大?。?/td> 155K
代理商： SAA7127
1999 May 31
21
Philips Semiconductors
Product specification
Digital video encoder
SAA7126H; SAA7127H
Table 35
Subaddress 6FH
Table 36
Logic levels and function of CCEN
Table 37
Subaddresses 70H to 72H
Table 38
Subaddress 73H
Table 39
Subaddress 74H
DATA BYTE
LOGIC
LEVEL
0
1
DESCRIPTION
CCEN
TTXEN
enables individual line 21 encoding; see Table 36
disables teletext insertion; default after reset
enables teletext insertion
selects the actual line, where closed caption or extended data are encoded;
line = (SCCLN + 4) for M-systems; line = (SCCLN + 1) for other systems
SCCLN
DATA BYTE
DESCRIPTION
CCEN1
CCEN0
0
0
1
1
0
1
0
1
line 21 encoding off; default after reset
enables encoding in field 1 (odd)
enables encoding in field 2 (even)
enables encoding in both fields
DATA BYTE
DESCRIPTION
RCV2S
start of output signal on RCV2 pin
values above 1715 (FISE = 1) or [1727 (FISE = 0)] are not allowed; first active pixel at analog
outputs (corresponding input pixel coinciding with RCV2) at RCV2S = 11AH [0FDH]
end of output signal on RCV2 pin
values above 1715 (FISE = 1) or [1727 (FISE = 0)] are not allowed; last active pixel at analog
outputs (corresponding input pixel coinciding with RCV2) at RCV2E = 694H (687H)
RCV2E
DATA BYTE
DESCRIPTION
REMARKS
TTXHS
start of signal on pin TTXRQ; see Fig.14
PAL: TTXHS = 42H
NTSC: TTXHS = 54H
DATA BYTE
DESCRIPTION
REMARKS
TTXHL
length of TTXRQ window; only active at old TTX protocol:
bit TTXO = 1
indicates the delay in clock cycles between rising edge of TTXRQ
output and valid data at pin TTX
TTXHL = 0: TTXRQ = 1398LLC;
TTXHL = 15: TTXRQ = 1413LLC
minimum value: TTXHD = 2
TTXHD
相關(guān)PDF資料
PDF描述
SAA7127H Digital video encoder
SAA7128A Digital video encoder
SAA7128AH Digital video encoder
SAA7129AH Digital video encoder
SAA7129AH Digital video encoder
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7127H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
SAA7128 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
SAA7128A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
SAA7128AH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
SAA7128H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital video encoder
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