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(yè)數(shù)： 11/52頁(yè)
文件大小： 835K
代理商： MC44011FN
MC44011
11
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
13
19
(See power distribution diagram at the end of this section.)
VCC3
– A 5.0 V supply (
±
5%), for the high frequency
PLL #2. Decoupling must be provided from this pin to
Pin 17. Ripple on this pin will affect pixel clock jitter.
14
20
Output
5.0 V
390
36 k
Brightness
Color
& Gain
20
R/V Output
– Red (in RGB mode), or R–Y (in YUV
mode), output from the color difference stage. A
pull–up (390
) to 5.0 V is required. Blank level is
≈
1.4 Vdc. Maximum amplitude is
≈
3.0 Vpp,
black–to–white.
15
21
(Same as Pin 20)
G/Y Output
– Green (in RGB mode), or Y (in YUV
mode), output from the color difference stage (same
as Pin 20).
16
22
(Same as Pin 20)
B/U Output
– Blue (in RGB mode), or B–Y (in YUV
mode), output from the color difference stage (same
as Pin 20).
17
23
(See power distribution diagram at the end of this section.)
VCC2
– A 5.0 V supply (
±
5%), for the color difference
stage. Decoupling must be provided from this pin to
Pin 24.
18
24
(See power distribution diagram at the end of this section.)
Gnd2
– Ground for the color difference stage. Signals
at Pins 20 to 31 should be referenced to this pin.
19
25
25
FC
– Fast Commutate switch. Taking this pin high
(TTL level) connects the RGB inputs (Pins 26 to 28)
to the RGB outputs (Pins 20 to 22), permitting an
overlay function. The switch can be disabled in
software (Bit $80–7).
20, 21,
22
26, 27,
28
100 k
Vref
R, G, B
Inputs
Blue (26), Green (27), Red (28) Inputs
– Inputs to
the color difference stage. Designed to accept
standard analog video levels, these input pins have a
clamp and sync separator. They are selected with
Pin 25 or in software (Bit $80–7).
23
29
Y2
Input
100 k
Vref
29
Y2 Input
– Luma #2/Composite sync input. This
luma input to the color difference stage is used in
conjunction with auxiliary color difference inputs,
and/or as a sync input. Clamp and sync separator
are provided.
24, 25
30, 31
100 k
Vref
R–Y, B–Y
Inputs
B–Y (30), R–Y (31) Inputs
– Inputs to the color
difference stage. Designed for standard color
difference levels, these inputs can be capacitor
coupled from the color difference outputs, from a delay
line, or an auxiliary signal source. Input clamp is
provided.
26
32
0.47
32
Y1 Clamp
– A 0.47
μ
F capacitor at this pin provides
clamping for the Luma #1 output.
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