MC44BC374 MOTOROLA [Motorola, Inc], MC44BC374 Datasheet - Page 9

• Manufacturer Part Number: MC44BC374
• Description: PLL Tuned PAL/NTSC UHF and VHF Audio/ Video High Integration Modulator IC
• Manufacturer: MOTOROLA [Motorola, Inc]

10 Video Characteristics
Unless otherwise stated: V
inputs/outputs into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE
DEMODULATION.
MOTOROLA
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
58
56
54
52
50
48
471 521 571 621 671 721 771 821 871
Parameter
Typical
Video Signal to Noise
Frequency (Mhz)
Minimum specification
cc
=5.0V, Ambient Temperture=25
Reference 0dB at 100kHz,
measured at 5MHz. See Note 2
75Ohm load
PWC bit set to 1, see PWC section.
See Note 2
No sound modulation,100% white video
Using CCIR Rec.567 weighting filter
See Figure 4. See Note 2
Unweighted. See Note 2
CCIR Test Line 330, worst case from the
first 4 steps out of 5. See Note 2
CCIR Test Line 310, worst case from the
first 4 steps out of 5. See Note 2
Input ratio 7.0:3.0
See Figure 4.See Note 2
Figure 4. Typical performances
MC44BC374T1 Technical Data
Test Conditions
90
88
86
84
82
80
78
76
74
o
471 521 571 621 671 721 771 821 871
C, Video Input 1V
PAL V ide o M odulation De pth
Typical
–1.5
6.8/
Min
500
110
Fr e que ncy (M hz )
–5
–5
3.2
50
45
75
—
—
Maximum specification
Minimum specification
–0.8
Typ
114
0.2
53
81
—
—
—
—
—
—
p-p
Video Characteristics
, 10-step grayscale. RF
Max
7.2/
118
1.5
2.8
88
—
—
—
—
1
5
5
Vcvbs
Unit
deg
KΩ
µA
dB
dB
—
%
%
%
Type
C
D
C
C
C
C
B
A
A
A
B
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