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參數(shù)資料
| 型號(hào)： | HMP8173CN |
| 廠商： | INTERSIL CORP |
| 元件分類： | 顏色信號(hào)轉(zhuǎn)換 |
| 英文描述： | NTSC/PAL Video Encoder |
| 中文描述： | COLOR SIGNAL ENCODER, PQFP64 |
| 封裝： | 14 X 14 MM, METRIC, PLASTIC, MO-108BD-2, QFP-64 |
| 文件頁(yè)數(shù)： | 8/33頁(yè) |
| 文件大?。?/td> | 232K |
| 代理商： | HMP8173CN |
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8
.
Color Subcarrier Generation
The HMP817x uses a numerically controlled oscillator
(NCO) clocked by CLK2 and a sine look up ROM to generate
the color subcarrier. As shown in Figure 9, the phase
increment value (PHINC) of the NCO may come from the
encoder’s internal look up table, BT.656 ancillary data, or a
control register. The PHINC source is selected in timing I/O
register 2.
.
FIGURE 7A. FULL SPECTRUM
FIGURE 7B. PASS BAND
FIGURE 7. Y LOWPASS FILTER RESPONSE
NTSC SQUARE PIXEL
CLK2 = 24.54MHz
NTSC OR PAL
RECTANGULAR PIXEL
CLK2 = 27.00MHz
PAL SQUARE PIXEL
CLK2 = 29.50MHz
0
-10
-20
-30
-40
-50
-60
0
2
4
6
8
10
12
14
FREQUENCY (MHz)
A
0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
0
1
2
3
4
5
6
7
A
FREQUENCY (MHz)
NTSC SQUARE PIXEL
CLK2 = 24.54MHz
NTSC OR PAL
RECTANGULAR PIXEL
CLK2 = 27.00MHz
PAL SQUARE PIXEL
CLK2 = 29.50MHz
FIGURE 8A. FULL SPECTRUM
FIGURE 8B. PASS BAND
FIGURE 8. Cb AND Cr LOWPASS FILTER RESPONSE
0
2
4
6
8
10
12
FREQUENCY (MHz)
0
-10
-20
-30
-40
-50
-60
A
NTSC SQUARE PIXEL
CLK2 = 24.54MHz
NTSC OR PAL
RECTANGULAR PIXEL
CLK2 = 27.00MHz
PAL SQUARE PIXEL
CLK2 = 29.50MHz
0
0.2
0.4
0.6
FREQUENCY (MHz)
0.8
1.0
1.2
0
-0.5
-1.0
-1.5
-2.0
-2.5
-3.0
A
NTSC SQUARE PIXEL
CLK2 = 24.54MHz
NTSC OR PAL
RECTANGULAR PIXEL
CLK2 = 27.00MHz
-3.5
-4.0
1.4
1.6
PAL SQUARE PIXEL
CLK2 = 29.50MHz
FIGURE 9. COLOR SUBCARRIER GENERATION NCO.
+
INTERNAL
BT.656
I
2
C
PHINC
SELECT
PHINC
D
Q
CLK2
NCO RESET
PHINT
HMP8170, HMP8171, HMP8172, HMP8173
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PDF描述 |
|---|---|
| HMP9701A | AC’97 Audio Codec |
| HMP9701 | AC’97 Audio Codec |
| HMP9701ACN | AC’97 Audio Codec |
| HMP9701CN | AC’97 Audio Codec |
| HMP9701EVAL2 | AC’97 Audio Codec |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HMP817XEVAL1 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Video Encoder |
| HMP8190 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Video Encoder |
| HMP8190CN | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Video Encoder |
| HMP8190EVAL1 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Video Encoder |
| HMP8191 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Video Encoder |
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