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MC44BC374T1 Datasheet(PDF) 9 Page - Freescale Semiconductor, Inc

Part No. MC44BC374T1
Description  PLL Tuned PAL/NTSC UHF and VHF Audio/Video High Integration Modulator IC
Download  26 Pages
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Maker  FREESCALE [Freescale Semiconductor, Inc]
Homepage  http://www.freescale.com
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MC44BC374T1 Datasheet(HTML) 9 Page - Freescale Semiconductor, Inc

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Video Characteristics
MC44BC374T1 Technical Data
10 Video Characteristics
Unless otherwise stated: Vcc=5.0V, Ambient Temperture=25
o C, Video Input 1V
p-p, 10-step grayscale. RF
inputs/outputs 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
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 310, 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
Video modulation depth
See Figure 4.See Note 2
75
81
88
%
B
Video Signal to Noise
48
50
52
54
56
58
471 521 571 621 671 721 771 821 871
Frequency (Mhz)
PAL V id e o M od u lation De p th
74
76
78
80
82
84
86
88
90
471 521 571 621 671 721 771 821 871
Fr e qu e ncy (M h z )
Typical
Typical
Minimum specification
Maximum specification
Minimum specification
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


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