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參數(shù)資料
| 型號： | HMP8156ACNZ |
| 廠商： | Intersil |
| 文件頁數(shù)： | 27/34頁 |
| 文件大小： | 0K |
| 描述： | IC VIDEO ENCODER NTSC/PAL 64MQFP |
| 標準包裝： | 84 |
| 類型： | NTSC/PAL 編碼器 |
| 應(yīng)用： | 多媒體，視頻編輯 |
| 電壓 - 電源，模擬： | 4.75 V ~ 5.25 V |
| 電壓 - 電源，數(shù)字： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-BQFP |
| 供應(yīng)商設(shè)備封裝： | 64-MQFP（14x14） |
| 包裝： | 托盤 |
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33
FN4343.5
August 20, 2009
Analog Output Filters
The various video standards specify the frequency response
of the video signal. The HMP8154/HMP8156A uses 2X
oversampling DACs to simplify the reconstruction filter
required. Example post filters are shown in Figure 38. The
analog output filters should be as close as possible to the
HMP8154/HMP8156A.
Evaluation Kits
The HMP8154EVAL1 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 HMP8154EVAL1 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 HMP8154EVAL1. 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 HMP8154EVAL1 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 I2C bus
connected to the printer port. The board includes the
standard 25 pin BT.656 connector and interface.
FIGURE 37. EXTERNAL REFERENCE VOLTAGE CIRCUIT
0.01
μF
+
4.7
μF
VAA
1.235V
ICL8069
6.8K
FIGURE 38A. HIGH QUALITY FILTER
FIGURE 38B. LOW COST FILTER
FIGURE 38. EXAMPLE POST-FILTER CIRCUITS
RL
75
1.0
μH
82pF
2.2
μH
330pF
1.0
μH
39pF
330pF
75
RL
75
2.7
μH
560pF
75
HMP8154, HMP8156A
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HMP8156CN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HMP8156EVAL1 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Encoders |
| HMP8156EVAL2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HMP8170 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Video Encoder |
| HMP8170_03 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:NTSC/PAL Video Encoder |
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