參數(shù)資料
型號： 935257900551
廠商： NXP SEMICONDUCTORS
元件分類： 顏色信號轉(zhuǎn)換
英文描述： COLOR SIGNAL ENCODER, PQCC84
封裝： PLASTIC, SOT-189-2, LCC-84
文件頁數(shù)： 10/42頁
文件大?。?/td> 289K
代理商： 935257900551
1996 Jul 08
18
Philips Semiconductors
Preliminary specication
Digital Video Encoder (EURO-DENC)
SAA7182; SAA7183
Table 16 Subaddress 62A
Table 17 Subaddress 62B
Notes
1. Recommended value: BSTA = 102 (66H).
2. Recommended value: BSTA = 72 (48H).
3. Recommended value: BSTA = 106 (6AH).
4. Recommended value: BSTA = 75 (4BH).
Table 18 Subaddress 63 to 66 (four bytes to program subcarrier frequency)
Note
1. Examples:
a) NTSC-M: ffsc = 227.5, fllc = 1716 → FSC = 569408543 (21F07C1FH).
b) PAL-B/G: ffsc = 283.7516, fllc = 1728 → FSC = 705268427 (2A098ACBH).
c) SECAM: ffsc = 274.304, fllc = 1728 → FSC = 681786290 (28A33BB2H).
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.16)
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)
xed burst amplitude with SECAM encoding
DATA BYTE
DESCRIPTION
CONDITIONS
REMARKS
FSC0 to FSC3 ffsc = subcarrier frequency
(in multiples of line
frequency);
fllc = clock frequency (in
multiples of line frequency)
see note 1
FSC3 = most signicant byte
FSC0 = least signicant byte
FSC
round
f
fsc
f
llc
--------
2
32
×
=
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