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參數(shù)資料
| 型號： | HMP8170EVAL1 |
| 廠商： | Intersil Corporation |
| 英文描述： | NTSC/PAL Video Encoder |
| 中文描述： | NTSC / PAL視頻編碼器 |
| 文件頁數(shù)： | 32/33頁 |
| 文件大?。?/td> | 407K |
| 代理商： | HMP8170EVAL1 |
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32
Analog Output Filters
The various video standards specify the frequency response
of the video signal. The HMP8170 uses 2X oversampling
DACs to simplify the reconstruction filter required. Example
post filters are shown in Figure 28. The analog output filters
should be as close as possible to the HMP8170.
Evaluation Kits
The HMP8170EVAL1 is a small (index card size) printed
circuit board containing the encoder, voltage references and
bypassing, analog output filters, and input/output
connectors. The board allows the encoder’s operation and
performance to be observed and measured.
The HMP8170EVAL1 board has a 50 pin, two row
receptacle which allows connection into an existing system.
The connector provides access to all of the encoder’s digital
inputs and outputs.
The HMP8156EVAL2 is the Intersil designed mother board
for the HMP8170EVAL1. The mother board is a standard
size PC add in card with an ISA bus interface and
application software. The HMP8156EVAL2 kit is a complete
system which allows demonstrating all of both encoders’
operating modes. It has analog video inputs for composite,
S-video, and component RGB signals. The analog signals
are converted/decoded to the digital domain and input to the
encoder. The board also provides a 3 megabyte video RAM
for image capture and display and a BT.656 connector and
interface.
For simpler operation, the HMP8170EVAL1 may also be
driven by external power supplies, a BT.656 signal
generator, and a PC parallel port. The evaluation kit includes
application software to program the part using its I
2
C bus
connected to the printer port. The board includes the
standard 25 pin BT.656 connector and interface.
FIGURE 27. EXTERNAL REFERENCE VOLTAGE CIRCUIT
0.01
μ
F
+
4.7
μ
F
VAA
1.235V
ICL8069
6.8K
FIGURE 28A. HIGH QUALITY FILTER
FIGURE 28B. LOW COST FILTER
FIGURE 28. EXAMPLE POST-FILTER CIRCUITS
RL
75
75
1.0
μ
H
82pF
2.2
μ
H
330pF
1.0
μ
H
39pF
330pF
RL
75
75
2.7
μ
H
560pF
560pF
HMP8170
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PDF描述 |
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| HOS-050 | Fast Settling Video Operational Amplifier |
| HOS-050A | RES,Carbon Film,110Ohms,350WV,5+/-% Tol |
| HOS-050C | RES,Carbon Film,22Ohms,350WV,5+/-% Tol |
| HOS-060 | Low Offset, Fast Settling Video Operational Amplifier |
| HOS-060SH | RES,Carbon Film,68KOhms,350WV,5+/-% Tol |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HMP8171 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Video Encoder |
| HMP8171CN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HMP8171CNS2227 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HMP8172 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Video Encoder |
| HMP8172CN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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