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參數資料
| 型號： | UPC1830GT |
| 廠商： | NEC Corp. |
| 英文描述： | FILTER-CONTAINING VIDEO CHROMA, SYNCHRONIZING SIGNAL PROCESSING LSI COMPATIBLE WITH NTSC/PAL SYSTEM |
| 中文描述： | 過濾含視頻色度，同步信號處理LSI兼容NTSC制式/ PAL制 |
| 文件頁數： | 28/44頁 |
| 文件大?。?/td> | 338K |
| 代理商： | UPC1830GT |
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μ
PC1830
28
MODE CONTROL SECTION
NTSC/PAL mode
switch threshold
voltage
NTSC/PAL mode
switch input pin
current
Subcarrier frequency
switch threshold
voltage
Subcarrier frequency
switch input pin
current
Vertical frequency
switch threshold
voltage
Vertical frequency
switch input pin
current
E
PN1
E
PN2
I
IPN
E
SC
I
ISC
E
FV
I
IFV
Voltage of pin 42 at
which both decoder and
matrix changes to
NTSC or PAL mode
simultaneously.
Voltage of pin 42 at
which only matrix
changes to NTSC or
PAL mode and decoder
remains in NTSC mode.
Input current of pin 42.
Voltage of pin 41 at
which f
SC
3.58/4.43
mode is changed.
Input current of pin 41.
Voltage of pin 6 at
which f
V
50/60 mode is
changed.
Input current of pin 6.
–
–
–
–
–
–
–
–
–
–
1.37
1.67
1.97
V
–
–
–
3.03
3.33
3.63
V
–
–
–
–0.5
+0.2
+2.0
μ
A
–
–
–
2.2
2.5
2.8
V
–
–
–
–2.0
–0.2
+0.5
μ
A
–
–
–
2.2
2.5
2.8
V
–
–
–
–2.0
–0.2
+0.5
μ
A
NTSC/PAL MODE SETTING
SW setting of pin 42
Voltage of pin 42
Decoder mode
Matrix mode
Mode 1
Mode 2
Mode 3
Lower than E
PN1
Between E
PN1
and E
PN2
Higher than E
PN2
PAL
NTSC
NTSC
PAL
NTSC
PAL
VERTICAL FREQUENCY (f
V
) SWITCHING
Voltage of pin 6
Vertical frequency fv
Lower than E
FV
Higher than E
FV
50 Hz
60 Hz
SUBCARRIER FREQUENCY (f
SC
) SWITCHING
Voltage of pin 41
Subcarrier frequency f
SC
Lower than E
SC
Higher than E
SC
4.43 MHz
3.58 MHz
Conditions
Symbol
Composite
f
SC
/Separate
PAL or
MIN.
TYP.
MAX.
Unit
(MHz) NTSC
Input signal
Parameter
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