參數(shù)資料
型號： MC44BC374CD
廠商： MOTOROLA INC
元件分類： 消費家電
英文描述： PLL Tuned UHF and VHF Audio/Video High Integration Modulator
中文描述： SPECIALTY CONSUMER CIRCUIT, PDSO16
封裝： SO-16
文件頁數(shù)： 10/30頁
文件大?。?/td> 915K
代理商： MC44BC374CD
10
MC44BC373C/374C Technical Data
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Video Characteristics
10
Video Characteristics
Unless otherwise stated: V
cc
=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
.
5
Vcvbs
μ
A
K
D
Video input current
—
0.2
1
A
Video input impedance
500
—
—
A
Peak White Clip
PWC bit set to 1, see PWC section.
See Note 2
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 Signal to Noise
( w i t h C C I R W e i g ht i ng f i l t e r
)
48
50
52
54
56
58
471 521 571 621 671 721 771 821 871
Fre que ncy (M hz)
d
PAL Video M odulation Depth
74
76
78
80
82
84
86
88
90
471 521 571 621 671 721 771 821 871
Frequency (M hz)
%
SECAM Video M odulation Depth
86
88
90
92
94
96
98
100
471 521 571 621 671 721 771 821 871
Frequency (M hz)
%
Typical
Typical
Typical
Minimum specification
Maximum specification
Maximum specification
Minimum specification
Minimum specification
F
Freescale Semiconductor, Inc.
n
.
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