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參數資料
| 型號： | 935260567118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | COLOR SIGNAL ENCODER, PQFP44 |
| 封裝： | PLASTIC, SOT-307, QFP-44 |
| 文件頁數： | 21/59頁 |
| 文件大小： | 232K |
| 代理商： | 935260567118 |
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2000 Mar 08
28
Philips Semiconductors
Product specication
Digital video encoder
SAA7128H; SAA7129H
Table 44 BSTA values
Note
1. All IRE values are rounded up.
Table 45 Subaddresses 63H to 66H
Note
1. Examples:
a) NTSC-M: fsc = 227.5, fllc = 1716 → FSC = 569408543 (21F07C1FH).
b) PAL-B/G: fsc = 283.7516, fllc = 1728 → FSC = 705268427 (2A098ACBH).
c) SECAM: fsc = 274.304, fllc = 1728 → FSC = 681786290 (28A33BB2H).
CONDITIONS(1)
ENCODING
white-to-black = 92.5 IRE;
burst = 40 IRE; NTSC encoding
recommended value: BSTA = 63 (3FH)
BSTA = 0 to 2.02
× nominal
white-to-black = 92.5 IRE;
burst = 40 IRE; PAL encoding
recommended value: BSTA = 45 (2DH)
BSTA = 0 to 2.82
× nominal
white-to-black = 100 IRE;
burst = 43 IRE; NTSC encoding
recommended value: BSTA = 67 (43H)
BSTA = 0 to 1.90
× nominal
white-to-black = 100 IRE;
burst = 43 IRE; PAL encoding
recommended value: BSTA = 47 (2FH); default value after reset
BSTA = 0 to 3.02
× nominal
xed burst amplitude with SECAM encoding
ADDRESS
BYTE
DESCRIPTION
63H
FSC[07:00]
These 4 bytes are used to program the subcarrier frequency. FSC[31:24] is the most
signicant byte, FSC[07:00] is the least signicant byte.
64H
FSC[15:08]
fsc = subcarrier frequency (in multiples of line frequency)
fllc = clock frequency (in multiples of line frequency)
65H
FSC[23:16]
; note 1
66H
FSC[31:24]
FSC
round
f
sc
f
llc
------
2
32
×
=
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