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參數(shù)資料
| 型號(hào)： | MC44011FN |
| 廠商： | MOTOROLA INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | BUS CONTROLLED MULTISTANDARD VIDEO PROCESSOR |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC44 |
| 封裝： | PLASTIC, LCC-44 |
| 文件頁數(shù)： | 12/52頁 |
| 文件大小： | 835K |
| 代理商： | MC44011FN |
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MC44011
12
MOTOROLA ANALOG IC DEVICE DATA
PIN FUNCTION DESCRIPTION (continued)
FB
FN
QFP
Description
(Pin numbers refer to PLCC package)
(Pin numbers refer to PLCC package)
PLCC
Pin
Representative Circuitry
27
33
Y1
Output
33
Y1 Output
– Luma #1 output. This output from the
PAL/NTSC/S–VHS decoder is the luma component of
the decoded composite video at Pin 1 or 3. It is
internally directed to the color difference stage.
28
34
System
Select
34
System Select
– A multi–level dc output which
indicates the color decoding system to which the
PAL/NTSC detector is set by the software. This output
is used by the MC44140 chroma delay line.
29
35
35
Sandcastle
Pulse
Sandcastle Pulse
– A multi–level timing pulse output
used by the MC44140 chroma delay line. This pulse
encompasses the horizontal sync and burst time.
30, 32
36, 38
R = 400
at Pin 38
R = 300
at Pin 36
R
20
μ
A
14.3 MHz
17.7 MHz
Xtal 2 (36), Xtal 1 (38)
– Designed for connection of 4x
subcarrier color crystals. Selection is done in software.
The selected frequency is used by the PAL/NTSC
detector; system identifier; all notches and traps; delay
lines; and the horizontal calibration circuit.
The crystal frequency should be:
14.3 MHz at Pin 36 for NTSC,
17.7 MHz at Pin 38 for PAL.
(See Table 17 for crystal specifications)
31
37
No Connect
– This pin is to be left open.
33
39
(See power distribution diagram at the end of this section.)
Ground 1
– Ground for all sections except PLL #2
and the color difference stage.
34
40
(See power distribution diagram at the end of this section.)
VCC1
– A 5.0 V (
±
5%), supply to all sections except
PLL #2 and the color difference stage.
35
41
B–Y
41
B–Y Output
– Output from the PAL/NTSC decoder, it
is typically capacitor–coupled to a delay line or to the
B–Y input. This pin is clamped, and filtered at the
color subcarrier frequency, 2x, and 8x that frequency.
36
42
(Same as Pin 41)
R–Y Output
– Output from the PAL/NTSC decoder.
37
43
0.1
43
Ident Filter
– A 0.1
μ
F capacitor filters the system
identification circuit in the NTSC/PAL decoder.
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