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參數資料
| 型號： | MC44007P |
| 廠商： | MOTOROLA INC |
| 元件分類： | 消費家電 |
| 英文描述： | CHROMA 4 VIDEO PROCESSOR |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP40 |
| 封裝： | PLASTIC, DIP-40 |
| 文件頁數： | 12/40頁 |
| 文件大小： | 491K |
| 代理商： | MC44007P |
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MC44002 MC44007
12
MOTOROLA ANALOG IC DEVICE DATA
Definitions
Parabola Amplitude
(ib
ie)
2
–im
Parabola Tilt
(ie–ib)
Parabola Amplitude
Horizontal Amplitude
im
Vertical Amplitude
Ve– Vb
Vertical Linearity
(Ve–Vm)
Vm–Vb
Corner correction is calculated in the same way as Parabola Amplitude.
Figure 4. Sandcastle Output (Pin 31)
64
μ
s
1
2
4
3
t1
t2
GENERAL DESCRIPTION OF THE CHROMA 4 SYSTEM
Figure 5 shows a simplified block diagram representation
of the basic system using the MC44002/7 and its companion
device the MC44140 chroma delay line. The MC44002/7 has
been designed to carry out all the processing of video
signals, display controls and timebase functions. There are
two video inputs which can be used for normal composite
video or separate Y and C inputs. In either case, the inputs
are interchangeable and selection is made via the I2C bus.
The video is decoded within the MC44002/7 and involves
separation, filtering, delay of the luminance part of the signal
and demodulation of the chroma into color difference signals.
The luminance (called Y1) together with the demodulated
R-Y and B-Y are all then brought out from the IC. The color
difference signals then enter the MC44140 which performs
color correction in PAL and the delay line function in SECAM.
Corrected color difference signals then re-enter the
MC44002/7.
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