參數(shù)資料
型號(hào)： SAA7183A
廠商： NXP Semiconductors N.V.
英文描述： Digital Video Encoder EURO-DENC2
中文描述： 數(shù)字視頻編碼器歐元，DENC2
文件頁(yè)數(shù)： 23/45頁(yè)
文件大?。?/td> 203K
代理商： SAA7183A
1996 Oct 02
23
Philips Semiconductors
Preliminary specification
Digital Video Encoder (EURO-DENC2)
SAA7182A; SAA7183A
Table 19
Subaddress 62A
Table 20
Subaddress 62B
Notes
1.
2.
3.
4.
Recommended value: BSTA = 102 (66H).
Recommended value: BSTA = 72 (48H).
Recommended value: BSTA = 106 (6AH).
Recommended value: BSTA = 75 (4BH).
Table 21
Subaddress 63 to 66 (four bytes to program subcarrier frequency)
Note
1.
Examples:
a) NTSC-M: f
fsc
= 227.5, f
llc
= 1716
→
FSC = 569408543 (21F07C1FH).
b) PAL-B/G: f
fsc
= 283.7516, f
llc
= 1728
→
FSC = 705268427 (2A098ACBH).
c) SECAM: f
fsc
= 274.304, f
llc
= 1728
→
FSC = 681786290 (28A33BB2H).
DATA BYTE
LOGIC LEVEL
DESCRIPTION
RTCE
0
1
no real time control of generated subcarrier frequency
real time control of generated subcarrier frequency through SAA7151B or SAA7111
(timing see Fig.18)
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
BSTA = 0 to 1.25
×
nominal
(1)
white-to-black = 92.5 IRE;
burst = 40 IRE; PAL encoding
BSTA = 0 to 1.76
×
nominal
(2)
white-to-black = 100 IRE;
burst = 43 IRE; NTSC encoding
BSTA = 0 to 1.20
×
nominal
(3)
white-to-black = 100 IRE;
burst = 43 IRE; PAL encoding
BSTA = 0 to 1.67
×
nominal
(4)
fixed burst amplitude with SECAM encoding
DATA BYTE
DESCRIPTION
CONDITIONS
REMARKS
FSC0 to FSC3
f
fsc
= subcarrier frequency
(in multiples of line
frequency);
f
llc
= clock frequency (in
multiples of line
frequency)
see note 1
FSC3 = most significant byte
FSC0 = least significant byte
FSC
round
f
llc
f
2
32
×
=
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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