MC44BC373CD FREESCALE [Freescale Semiconductor, Inc], MC44BC373CD Datasheet - Page 9

• Manufacturer Part Number: MC44BC373CD
• Description: PLL Tuned UHF and VHF Audio/Video High Integration Modulator
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

9 Modulator High Frequency Characteristics
Unless otherwise stated: V
RF inputs/outputs into 75Ohm load. SPECIFICATIONS ONLY VALID FOR ENVELOPE
DEMODULATION.
TVOUT output level
UHF oscillator frequency
VHF range
TVOUT output attenuation
Sound subcarrier harmonics (Fp+n∗Fs) Reference picture carrier. See Note 2
Second harmonic of chroma subcarrier
Chroma/Sound intermodulation:
Fp+ (Fsnd – Fchr)
Fo (picture carrier) harmonics
Out band (picture carrier) spurious
In band spurious (Fo ± 5MHz)
Note:
Note:
40
35
30
25
20
15
7 8
7 7
7 6
7 5
7 4
7 3
7 2
1: Picture carrier harmonics are highly dependant on PCB layout and decoupling capacitors.
2: See “Characterization Measurement Conditions” on page 12.
471 521 571 621 671 721 771 821 871
47 1 52 1 5 71 621 67 1 72 1 7 71 821 871
Maximum specification
Parameter
T V Ou tp u t L e v e l
2Fo Har m o n ics
Fr e q u e n cy ( M h z )
Fr e q u e n c y (M h z )
Maximum specification
Minimum specification
cc
Freescale Semiconductor, Inc.
=5.0V, Ambient Temperture=25
For More Information On This Product,
MC44BC373C/374C Technical Data
Figure 3. Typical Performance
Output signal from modulator section
See Figure 3. See Note 2
From UHF oscillator internally divided
During transient output inhibit, or when
ATT bit is set to 1. See Figure 3.
See Note 2
Using red EBU bar. See Note 2
Using red EBU bar.See Note 2
2nd harmonic: CH21
3rd harmonic: CH21
Other channels: See Figure 3.
See NOTE 1. See Note 2
1/2∗Fo–1/4∗Fo–3/2∗Fo–3/4∗Fo
From 40MHz to 1GHz. See Note 2
No video sound modulation.See Note 2
Typical
Typical
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Test Conditions
75
70
65
60
55
50
45
Modulator High Frequency Characteristics
45
40
35
30
25
20
15
o
471 521 571 621 671 721 771 821 871
C, Video Input 1V
471 521 571 621 671 721 771 821 871
T V Ou t p u t A tt e n u atio n
3Fo Har m o n ics
Fr e q u e n cy ( M h z )
Typical
F r e q u e n c y ( M h z )
Min
460
73
45
50
—
—
—
—
—
—
—
Maximum specification
Maximum specification
p-p
74.5
Typ
60
63
35
26
—
—
—
—
—
, 10-step grayscale.
0
Typical
Max
880
460
77
58
65
65
30
22
10
60
—
dBµV
dBµV
MHz
MHz
Unit
dBc
dBc
dBc
dBc
dBc
dBc
Type
C
C
C
C
C
C
B
A
B
B