參數(shù)資料
型號(hào)： SAA7120
廠商： NXP SEMICONDUCTORS
元件分類： 顏色信號(hào)轉(zhuǎn)換
英文描述： Digital Video Encoder (ConDENC)
中文描述： COLOR SIGNAL ENCODER, PQFP44
封裝： PLASTIC, SOT-307, QFP-44
文件頁數(shù)： 15/32頁
文件大?。?/td> 225K
代理商： SAA7120
1997 Jan 06
15
Philips Semiconductors
Preliminary specification
Digital Video Encoder (ConDENC)
SAA7120; SAA7121
Table 11
Subaddress 3A
Table 12
Subaddress 5A
Remark
: in subaddresses 5B, 5C, 5D, 5E and 62 all IRE values are rounded up.
Table 13
Subaddress 5B and 5D
Table 14
Subaddress 5C and 5E
DATA BYTE
LOGIC
LEVEL
DESCRIPTION
UV2C
0
1
0
1
0
1
0
1
Cb, Cr data are two’s complement
Cb, Cr data are straight binary; default after reset
Y data is two’s complement
Y data is straight binary; default after reset
horizontal and vertical trigger is taken from RCV2 and RCV1 respectively; default after reset
horizontal and vertical trigger is decoded out of “CCIR 656”compatible data at MP port
data from input ports is encoded; default after reset
colour bar with fixed colours is encoded
Y2C
SYMP
CBENB
DATA BYTE
DESCRIPTION
VALUE
RESULT
CHPS
phase of encoded colour subcarrier
(including burst) relative to horizontal sync;
can be adjusted in steps of
360/256 degrees
3FH
69H
67H
89H
PAL-B/G and data from input ports
PAL-B/G and data from look-up table
NTSC-M and data from input ports
NTSC-M and data from look-up table
DATA BYTE
DESCRIPTION
CONDITIONS
white-to-black = 92.5 IRE
GAINU = 0
GAINU = 118 (76H)
white-to-black = 100 IRE
GAINU = 0
GAINU = 125 (7DH)
REMARKS
GAINU
variable gain for
Cb signal; input
representation
accordance with
“CCIR 601”
GAINU =
2.17
×
nominal to +2.16
×
nominal
output subcarrier of U contribution = 0
output subcarrier of U contribution = nominal
GAINU =
2.05
×
nominal to +2.04
×
nominal
output subcarrier of U contribution = 0
output subcarrier of U contribution = nominal
DATA BYTE
DESCRIPTION
CONDITIONS
REMARKS
GAINV
variable gain for
Cr signal; input
representation
accordance with
“CCIR 601”
white-to-black = 92.5 IRE
GAINV = 0
GAINV = 165 (A5H)
white-to-black = 100 IRE
GAINV = 0
GAINV = 175 (AFH)
GAINV =
1.55
×
nominal to +1.55
×
nominal
output subcarrier of V contribution = 0
output subcarrier of V contribution = nominal
GAINV =
1.46
×
nominal to +1.46
×
nominal
output subcarrier of V contribution = 0
output subcarrier of V contribution = nominal
相關(guān)PDF資料
PDF描述
SAA7120H-01 Digital Video Encoder (ConDENC)
SAA7121 Digital Video Encoder (ConDENC)
SAA7124HZ Digital Video Encoder ECO-DENC
SAA7124 Digital Video Encoder ECO-DENC
SAA7124H Digital Video Encoder ECO-DENC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7120H 制造商:NXP Semiconductors 功能描述:Video/TV Circuit, Color Encoder Circuit, 44 Pin, Plastic, QFP
SAA7120H-01 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital Video Encoder (ConDENC)
SAA7121 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital Video Encoder (ConDENC)
SAA7121H 制造商:NXP Semiconductors 功能描述:
SAA7121H/V2 制造商:NXP Semiconductors 功能描述:
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