參數(shù)資料
型號(hào): SAF7129AH
廠商: NXP Semiconductors N.V.
元件分類(lèi): 通用總線功能
英文描述: Digital video encoder
文件頁(yè)數(shù): 28/56頁(yè)
文件大?。?/td> 259K
代理商: SAF7129AH
2004 Mar 16
28
Philips Semiconductors
Product specification
Digital video encoder
SAF7129AH
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).
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
llc
64H
FSC[15:08]
65H
66H
FSC[23:16]
FSC[31:24]
note 1
FSC
round
f
2
32
×
;
=
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