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MC44BS373CADR2 데이터시트(PDF) 13 Page - Freescale Semiconductor, Inc

부품명 MC44BS373CADR2
상세설명  PLL-Tuned UHF and VHF Audio/Video High-Integration Modulator
PDF  52 Pages
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제조업체  FREESCALE [Freescale Semiconductor, Inc]
홈페이지  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC44BS373CADR2 데이터시트(HTML) 13 Page - Freescale Semiconductor, Inc

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MC44BS373CA Data Sheet
Modulator High-Frequency Characteristics
11 Modulator High-Frequency Characteristics
Each of the characteristics listed in Table 20 is classified as one of the following types:
•
A—100% tested
•
B—100% correlation tested
•
C—Characterized on samples
•
D—Design parameter
See Section 14, “Characterization Measurement Conditions,” for each C-type parameter.
Unless otherwise stated, VCC = 5.0V, ambient temperature = 25°C, and video input is 1 Vp-p, with 10-step
grey scale and RF output into 75-
Ω load.
NOTE
Specifications only valid for envelope demodulation.
Table 20. High-Frequency Characteristics
Parameter
Test Conditions
Min
Typ
Max
Unit
Type Notes
TVOUT output level
Output signal from modulator section
79
82
85
dB
µVB
1, 2
UHF oscillator frequency
—
460
—
880
MHz
A
VHF range
From UHF oscillator internally divided
45
—
460
MHz
B
TVOUT output attenuation
During transient output inhibit, or when
ATT bit is set to 1
65
75
—
dBc
B
1, 2
Sound subcarrier harmonics
(Fp
+ n × Fs)
Reference picture carrier
50
63
—
dBc
C
1
Second harmonic of chroma
subcarrier
Using red EBU bar
45
70
—
dBc
C
1
Chroma/sound intermodulation:
Fp
+ (Fsnd – Fchr)
Using red EBU bar
65
82
—
dBc
C
1
Fo (picture carrier) harmonics
2nd harmonic: CH21
—
38
50
dB
µVC
1,3
3rd harmonic: CH21
—
58
70
Other channels
—
2
Out-of-band (picture carrier)
spurious
1/2
× Fo – 1/4 × Fo – 3/2 × Fo – 3/4 ×
Fo
From 40 MHz to 1 GHz.
——
10
dB
µVC
1
In-band spurious (Fo at 5 MHz)
No video sound modulation.
65
75
—
dBc
C
1
Notes:
1. See Section 14, “Characterization Measurement Conditions.”
2. See Figure 3.
3. Picture carrier harmonics are highly dependent on PCB layout and decoupling capacitors.



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