參數(shù)資料
型號: TMC2192
廠商: Fairchild Semiconductor Corporation
英文描述: 10 Bit Video Encoder(10位視頻編碼器)
中文描述: 10位視頻編碼器(10位視頻編碼器)
文件頁數(shù): 25/72頁
文件大?。?/td> 396K
代理商: TMC2192
PRODUCT SPECIFICATION
TMC2192
25
P
Interpolation Filters
Each video output on the TMC2192 is digitally filtered with
sharp-cutoff low-pass interpolation filters. These filters
ensure that the frequency band above base-band video and
below the pixel frequency (f
S
/4 to 3f
S
/4, where f
S
is the
PXCK frequency) are sufficiently suppressed.
Since these are fixed-coefficient digital filters, their filter
characteristics depend upon clock rate.
Figure 17. Interpolation Filter
Figure 18. Interpolation Filter – Passband Detail
x/Sin(x) Filter
Control Registers for this section
The TMC2192 contains a selectable X/sin(X) filter prior to
each DAC. The X/sin(X) filter boosts the high frequency
data to negate the sin(X)/X roll-off associated with D/A con-
verters.
Figure 19. X/SIN(X) Filter
Output Data Formats
Control Registers for this section
-80
-70
-60
-50
-40
-30
-20
-10
10
0
6
0
0.2
0.4
0.6
0.8
1
Frequency (Pixel rate)
A
-4
-3.5
-3
-2.5
-2
-1.5
-1
-0.5
0
0.5
0
0.1
0.2
0.3
0.4
0.5
Frequency (Pixel rate)
A
6
Address
0x11
Bit(s)
4
Name
SINEN
Address
0x10
0x10
0x10
0x3F
0x3F
Bit(s)
5
6
7
7
4
Name
LUMADIS
CHROMADIS
COMPDIS
SEL_CLK
SEL_PIX
-2
-1.5
-1
-0.5
0
0.5
1
1.5
0
0.1
Normalized Frequency (PXCK)
0.2
0.3
0.4
0.5
A
6
Compensated
D/A Output
Sin(x)/x D/A Roll-Off
X/Sin(x) Filter
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參數(shù)描述
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