參數(shù)資料
型號(hào)： M52390FP
廠商： Mitsubishi Electric Corporation
英文描述： NTSC/PAL ENCODER
中文描述： 的NTSC / PAL編碼器
文件頁(yè)數(shù)： 17/22頁(yè)
文件大小： 235K
代理商： M52390FP
NTSC/PAL ENCODER
M52390FP
MITSUBISHI ICs (AV COMMON)
(
)
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
FILTER CONT
COLOR CONT
RIN
GIN
BIN
CLAMP
Sync.
ADD
MATRIX
V
reg
NTSC/
PAL
SUPER-
IMPOSE
SW
R-Y
BURST
ADD
B-Y
BURST
ADD
R-Y
MOD
B-Y
MOD
GND
MMV
MIX
BPF
Y/C
MIX
APC
VCXO
R-Y CLAMP
B-Y CLAMP
Xtal
CLAMP
6dB
AMP
VIDEO
IN
VIDEO
OUT
R-Y
B-Y
Y
2.1V
V
CC
Y
0.71V
P-P
R
G
B
COMPOSITE
Sync.
2.5V
f
0
μ
3
4
μ
4
μ
4
μ
1
Y
Y
1k
4
μ
Recommended Y DL (360ns):
Toko Co., Ltd. TH317LSOS-3287
1
V
r
0
μ
4
μ
V
CC
=5V
(Note)
Drive at low impedance
because character RGB signal
and main picture video signal
are clamped by IC input. In
case that character RGB
signal is generated at the
same timing with that of main
picture input signal, delay the
main picture input signal about
370ns. The timing to insert
characters is delayed. In
inputting Composite Sync,
input the sync signal of the
main picture.
NTSC/PAL VIDEO OUTPUT
Example of Xtal:Nippon denpa industry Co., Ltd. AT-51
(NTSC = 3.579545MHz)
(PAL
= 4.433619MHz)
1
1
μ
A
0
μ
V
0
μ
C
1
μ
1
2
9
3
C
M
GND
APPLICATION EXAMPLE (2)
Superimposing RGB Character Signal on NTSC/PAL Signal
(*The case that RGB signal of personal computers, etc. is
superimposed on NTSC/PAL signal as a child picture is mentioned
in parentheses.)
RGB CHARACTER SIGNAL INPUT
(*RGB child picture signal input after processing time axis)
In case that the signal which is about 350ns behind the character
(*child picture) RGB signal is directly generated as Ys signal, Ys
DL is not necessary. When the timing of RGB coincides with that of
Ys, set the delay time of Ys DL to 350ns (typ.).
Ys DL
(350ns)
V
TH
=1.5V
(Hi=R,G,B)
Main picture NTSC/PAL
video signal input
0
μ
Ys
4
μ
Unit Resistance
Capacitance : F
:
+
+
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