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: 23/96页
文件大小: 1509K
代理商: S5D0127X01-Q0R0
ELECTRONICS
S5D0127X01 Data Sheet
MULTIMEDIA VIDEO
PAGE 23 OF 96
Modified on May/04/2000
1.4. HORIZONTAL CHROMA PROCESSING
A simplified block diagram for the horizontal chroma processing unit is shown in Figure 17.
Figure 17. Horizontal Chroma Processing Unit
The S5D0127X01 supports chroma input in NTSC, PAL, SECAM and component formats. The color standard is
automatically detected and the various chroma processing blocks are enabled as required for the given chroma
standard. Details of the various chroma processing blocks follow.
1.4.1. IF Compensation
For improved chroma demodulation when the input video is from a mis-tuned IF source, an IF compensation filter
is included that has variable gain for the upper chroma side band. This is controlled by the
CIFCMP
[1:0] bits at
location
CDEM
. The frequency response is shown in Figure 18. For convenience, all plots are normalized to the
NTSC modulation frequency.
Gain
Tracking
Frequency
Tracking
COS
V
U
SIN
CBW,FSEC
CBW,FSEC
Low
Pass
TSTCGN
CKILL
SAT
CORE
HUE, TSTCFR
CFTC
Color
Killer
CKILL
Low
Pass
FROM ADC
Saturation
Control
SECAM
Frequency
Differentiator
UGAIN
VGAIN
Coring
Control
UOFFST
VOFFST
Offset
Control
Gain / PAL
Control
Auto
Detect
RTCO
Control
RTC_PID
RTC_DTO
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