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參數資料
| 型號： | TFP6422PAP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, THERMALLY ENHANCED, POWER, PLASTIC, TQFP-64 |
| 文件頁數： | 48/65頁 |
| 文件大小： | 813K |
| 代理商： | TFP6422PAP |
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TFP6422, TFP6424
PanelBus
DIGITAL TRANSMITTER/VIDEO ENCODER COMBO
SLDS118 – MARCH 2000
52
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
BSTAMP
Subaddress = 62
Default = 0x38
7
6
5
4
3
2
1
0
SQP
BSTAP[6:0]
Color burst amplitude.
SQP
Square-pixel sampling rate.
0(*)
CCIR601 sampling rate
1
Square-pixel sampling rate
BSTAP[6:0]
Setting of amplitude of color burst.
The SQP and FFRQ bits determine the total number of horizontal pixels displayed per scan line as shown in the
following register.
MODE
SQP
FFRQ
NO. OF PIXEL PER LINE
CCIR601 PAL
0
864
CCIR601 NTSC
0
1
858
Square pixel PAL
1
0
944
Square pixel NTSC
1
780
S_CARR1,2,3,4
Subaddress = 63.64.65,66
Default = 0x1F, 0x7C, 0xF0, 0x21
7
6
5
4
3
2
1
0
FCS[7:0]
FSC[15:8]
FSC[23:16]
FSC[31:24]
Color Subcarrier Frequency Registers.
FSC[31:0]
These four bytes’ data are used to program color subcarrier frequency.
These four bytes are
determined by the following formula.
S_CARR = ROUND((Fsc/Fclkenc) * 232)
Where Fsc
= Frequency of the subcarrier
Fclkenc = Frequency of the internal video encoding clock
= 2*LLEN *Fh
LLEN
= Number of pixels in a scan line
Fh
= Line frequency
Refer to the description of LLEN registers (subaddresses 0x42 and 0x43).
The following register lists some common values for S_Carr.
STANDARD
PIXEL TYPE
SUBCARRIER FREQUENCY
(Fsc)
Fclkin
S_Carr (Dec)
S_Carr (Hex)
M/NTSC
Rectangular
3.579545 MHz
27 MHz
569408543(*)
21F07C1F
B,D,G,H,I,N/PAL
Rectangular
4.43361875 MHz
27 MHz
705268427
2A098ACB
N/PAL; Argentina
Rectangular
3.58205625 MHz
27 MHz
569807942
21F69446
Rectangular
3.5756083125 MHz
27 MHz
568782819
21E6EFE3
M/NTSC
Square
3.579545 MHz
24.5454 MHz
626349397
25555555
B,D,G,H,I,N/PAL
Square
4.43361875 MHz
29.50 MHz
645499916
26798C0C
N/PAL; Argentina
Square
3.58205625 MHz
29.50 MHz
521519134
1F15C01E
Square
3.5756083125 MHz
24.5454 MHz
625661101
254AD4AD
PRODUCT
PREVIEW
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