MC44BC374T1 Ver la hoja de datos (PDF) - Motorola => Freescale
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MC44BC374T1 Datasheet PDF : 27 Pages
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Video Characteristics
10 Video Characteristics
Unless otherwise stated: Vcc=5.0V, Ambient Temperture=25oC, Video Input 1Vp-p, 10-step grayscale. RF
inputs/outputs into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE
DEMODULATION.
Parameter
Video bandwidth
Video input level
Video input current
Video input impedance
Peak White Clip
Video S/N
Differential Phase
Differential Gain
Luma/Sync ratio
Video modulation depth
Test Conditions
Min Typ Max Unit Type
Reference 0dB at 100kHz,
measured at 5MHz. See Note 2
–1.5 –0.8 —
dB
C
75Ohm load
—
— 1.5 Vcvbs D
— 0.2
1
µA
A
500 —
— KΩ
A
PWC bit set to 1, see PWC section.
See Note 2
110 114 118 %
A
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
CCIR Test Line 330, worst case from the
first 4 steps out of 5. See Note 2
–5
—
5 deg C
CCIR Test Line 310, worst case from the
first 4 steps out of 5. See Note 2
–5
—
5
%
C
Input ratio 7.0:3.0
6.8 /
3.2
—
7.2 /
2.8
—
B
See Figure 4.See Note 2
75
81
88
%
B
Video Signal to Noise
58
56
Typical
54
52
50
Minimum specification
48
471 521 571 621 671 721 771 821 871
Frequency (Mhz)
PAL V ide o M odulation De pth
90
88
86
Maximum specification
84
Typical
82
80
78
76
Minimum specification
74
471 521 571 621 671 721 771 821 871
Fr e que ncy (M hz )
Figure 4. Typical performances
MOTOROLA
MC44BC374T1 Technical Data
9
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