參數(shù)資料
型號(hào)： SAA7128A
廠商： NXP Semiconductors N.V.
英文描述： Digital video encoder
中文描述： 數(shù)字視頻編碼器
文件頁(yè)數(shù)： 27/55頁(yè)
文件大?。?/td> 262K
代理商： SAA7128A
2003 Dec 09
27
Philips Semiconductors
Product specification
Digital video encoder
SAA7128AH; SAA7129AH
Table 44
BSTA values
Note
1.
All IRE values are rounded up.
Table 45
Subaddresses 63H to 66H
Note
1.
Examples:
a) NTSC-M: f
sc
= 227.5, f
llc
= 1716
→
FSC = 569408543 (21F07C1FH).
b) PAL-B/G: f
sc
= 283.7516, f
llc
= 1728
→
FSC = 705268427 (2A098ACBH).
c) SECAM: f
sc
= 274.304, f
llc
= 1728
→
FSC = 681786290 (28A33BB2H).
Table 46
Subaddress 67H
CONDITIONS
(1)
ENCODING
white-to-black = 92.5 IRE;
burst = 40 IRE; NTSC encoding
BSTA = 0 to 2.02
×
nominal
white-to-black = 92.5 IRE;
burst = 40 IRE; PAL encoding
BSTA = 0 to 2.82
×
nominal
white-to-black = 100 IRE;
burst = 43 IRE; NTSC encoding
BSTA = 0 to 1.90
×
nominal
white-to-black = 100 IRE;
burst = 43 IRE; PAL encoding
BSTA = 0 to 3.02
×
nominal
fixed burst amplitude with SECAM encoding
recommended value: BSTA = 63 (3FH)
recommended value: BSTA = 45 (2DH)
recommended value: BSTA = 67 (43H)
recommended value: BSTA = 47 (2FH); default value after reset
ADDRESS
BYTE
DESCRIPTION
63H
FSC[07:00]
These 4 bytes are used to program the subcarrier frequency. FSC[31:24] is the most
significant byte, FSC[07:00] is the least significant byte.
f
sc
= subcarrier frequency (in multiples of line frequency)
f
llc
= clock frequency (in multiples of line frequency)
f
f
llc
64H
FSC[15:08]
65H
66H
FSC[23:16]
FSC[31:24]
note 1
BIT
SYMBOL
DESCRIPTION
7 to 0
L21O[07:00]
First byte of captioning data, odd field.
LSB of the byte is encoded immediately after run-in and framing code, the MSB of
the byte has to carry the parity bit, in accordance with the definition of line 21
encoding format.
FSC
round
------
2
32
×
;
=
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7128AH 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Digital video encoder
SAA7128H 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Digital video encoder
SAA7129 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Digital video encoder
SAA7129/DENC29A 制造商:NXP Semiconductors 功能描述:
SAA7129AH 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:Digital video encoder
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