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MC44BC373C Datasheet(PDF) 10 Page - Freescale Semiconductor, Inc

No. de pieza MC44BC373C
Descripción Electrónicos  PLL Tuned UHF and VHF Audio/Video High Integration Modulator
PDF  30 Pages
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Fabricante Electrónico  FREESCALE [Freescale Semiconductor, Inc]
Página de inicio  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC44BC373C Datasheet(HTML) 10 Page - Freescale Semiconductor, Inc

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MC44BC373C/374C Technical Data
Video Characteristics
10 Video Characteristics
Unless otherwise stated: Vcc=5.0V, Ambient Temperture=25
o C, Video Input 1V
p-p, 10-step grayscale.
RF output into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE DEMODULATION.
Figure 4. Typical Performances
Parameter
Test Conditions
Min
Typ
Max
Unit
Type
Video bandwidth
Reference 0dB at 100kHz,
measured at 5MHz. See Note 2
–1.5
–0.8
—
dB
C
Video input level
75Ohm load
—
—
1.5Vcvbs
D
Video input current
—
0.2
1
µAA
Video input impedance
500
—
—
K
Ω
A
Peak White Clip
PWCbit setto 1,see PWCsection.
SeeNote2
110
114
118
%
A
Video S/N
No sound modulation,100% white video
Using CCIR Rec.567 weighting filter
See Figure 4. See Note 2
50
53
—
dB
C
Unweighted. See Note 2
45
—
—
C
Differential Phase
CCIR Test Line 330, worst case from the
first 4 steps out of 5. See Note 2
–5
—
5
deg
C
Differential Gain
CCIR Test Line 330, worst case from the
first 4 steps out of 5. See Note 2
–5
—
5
%
C
Luma/Sync ratio
Input ratio 7.0:3.0
6.8/
3.2
—
7.2/
2.8
—B
PAL video modulation depth
See Figure 4. See Note 2
75
81
88
%
B
SECAM video modulation depth
MC44BC373C only - See Figure 4. See
Note 2
88
93
99
%
B
V ide o Sign a l t o Nois e
( w i t h C C I R W ei g h t i n g f i l t er )
48
50
52
54
56
58
471 521 571 621 671 721 771 821 871
Fr e q u e n c y ( M h z )
PA L V id e o M o du latio n De pt h
74
76
78
80
82
84
86
88
90
471 521 571 621 671 721 771 821 871
Fr e q u e n cy (M h z )
SEC A M V id e o M odulatio n De pth
86
88
90
92
94
96
98
100
471 521 571 621 671 721 771 821 871
Fr e que ncy ( M h z)
Typical
Typical
Typical
Minimum specification
Maximum specification
Maximum specification
Minimum specification
Minimum specification
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



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