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參數(shù)資料
| 型號： | SAA7187 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Digital video encoder (DENC2-SQ)(數(shù)字視頻編碼器) |
| 中文描述： | 數(shù)字視頻編碼器（DENC2 -倚）（數(shù)字視頻編碼器） |
| 文件頁數(shù)： | 14/18頁 |
| 文件大小： | 197K |
| 代理商： | SAA7187 |
Philips Semiconductors
Clock and synchronization signals of SAA7187 and SAA7188
Application note for digital video encoder
May 1994
14
7.1.2
Subaddress 6D hex
Table 9. Program for RCM1 at pin 29 and “Line 21” encoding in subaddress 6D-hex
BITS IN
SUBADDRESS 6Dhex
SHORT NAME
FUNCTION DESCRIPTION
7 6
5
4
3 2
1
0
CCEN
“Line 21” encoding, Closed Caption and Extented Data service
0
0
no “l(fā)ine 21” encoding in either field
0
1
“Line 21” encoding in first (odd) field only (extented data),
data content as programmed in subaddress 69hex and 6Ahex
1
0
“Line 21” encoding in second (even) field only (Closed Caption),
data content as programmed in subaddress 67hex and 68hex
1
1
“Line 21” encoding in both fields
SRCM
select type of field reference output signal on pin 29 RCM1
0 0
VS (vertical sync), active high during serration pulses (3 or 2.5 lines)
0 1
FS (frame sync), active low during odd field, high during even field
1 0
FSEQ color (field sequence indication signal), active high during
first field of four fields, if FISE = 1 (60 Hz, 525 lines)
first field of eight fields, if FISE = 0 (50 Hz, 625 lines)
1 1
n.a.; do not use this combination
0 0
0
0
reserved
7.1.3
Subaddress 70 hex
Table 10. Program for VTRIG and VBI (vertical blanking interval) in subaddress 70-hex
BITS IN
SUBADDRESS 70hex
SHORT NAME
FUNCTION DESCRIPTION
7 6
5
4
3 2
1
0
VTRIG
vertical trigger phase offset
x
x
x
x
x
half line number, in which vertical/field trigger input occurs
SBLBN
Vertical Blanking Interval (VBI)
0
blanking is enforced in all lines outside FAL-to-LAL,
(First Active Line to Last Active Line, see subaddress 7B, 7C, and 7D)
1
blanking is only enforced only during equalization and serration (vertical sync) pulses,
i.e., 9 (60Hz) or 7.5 (50Hz) lines, signal insertion a/o encoding also outside
FAL-to-LAL, allowing data, time code or test signal insertion in regular VBI
PHRES
color subcarrier reset mode, to support SC-H coupling
0 0
continuously running color subcarrier oscillation, e.g., for remote genlock RTC mode
0 1
color subcarrier phase reset every second line
1 0
color subcarrier phase reset every eighth field (PAL)
1 1
color subcarrier phase reset every fourth field (NTSC)
相關PDF資料 |
PDF描述 |
|---|---|
| SAA7188A | Digital Video Encoder (DENC2-M)(數(shù)字視頻編碼器(DENC2-M)) |
| SAA7201 | Integrated MPEG2 AVG Decoder(綜合MPEG音頻視頻圖表譯碼器) |
| SAA7201H | Integrated MPEG2 AVG decoder |
| SAA7212 | Integrated MPEG2 AVG Decoder(綜合MPEG音頻視頻圖表譯碼器) |
| SAA7212H | Integrated MPEG AVG decoder |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SAA7187WP | 制造商:NXP Semiconductors 功能描述: |
| SAA7188 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital Video Encoder DENC2-M |
| SAA7188A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital Video Encoder DENC2-M |
| SAA7188AWP | 制造商:NXP Semiconductors 功能描述:COLOR SIGNAL ENCODER, PQCC68 |
| SAA7191B | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital Multistandard Colour Decoder, Square Pixel DMSD-SQP |
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