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参数资料
| 型号： | S5D0127X01-Q0R0 |
| 厂商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | MULTISTANDARD VIDEO DECODER/SCALER |
| 中文描述： | 多标准视频解码器/倍线器 |
| 文件页数： | 26/96页 |
| 文件大小： | 1509K |
| 代理商： | S5D0127X01-Q0R0 |
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ELECTRONICS
S5D0127X01 Data Sheet
MULTIMEDIA VIDEO
PAGE 26 OF 96
Modified on May/04/2000
Figure 21. De-emphasis Filter Frequency Response
1.4.5. Additional Chroma Functions
S5D0127X01 has many built in auto detection circuits. These allow S5D0127X01 to track any type of video
standard input automatically.
For analog component video input, the demodulation function is not enabled. The low pass filter provides a group
delay for Cb and Cr alignment. This enables the two components to be sampled by one ADC.
An RTCO serial output is provided that encodes the current chroma and pixel frequency of the decoder. This
information can be used by an Encoder running off of the decoder clock to produce proper color output. The
horizontal position of the serial signal is controlled by the
HS2
location. The phasing of the DTO and the Encoder
can be reset using the
RTC_DTO
bit. For PAL mode, the PID polarity can be controlled with the
RTC_PID
bit.
1.5. COMB FILTER
Comb filters provide superior Y/C separation for composite NTSC and PAL than simple chroma trap filter. The
S5D0127X01 contains on-chip separate 2-line stored luma and chroma comb filters. An internal signal COMB
controls for what lines the comb function is enabled. This signal is available through the PORTB pin. Combing is
part of the vertical processing which also includes vertical scaling, which is discussed in Section 1.6. A block
diagram for the vertical processing section is shown in Figure 22.
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