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參數(shù)資料
| 型號(hào)： | MC44BC375JD |
| 廠商： | MOTOROLA INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | PLL Tuned VHF Audio/ Video High Integration Modulator ICs |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO16 |
| 封裝： | SO-16 |
| 文件頁(yè)數(shù)： | 7/20頁(yè) |
| 文件大小： | 537K |
| 代理商： | MC44BC375JD |
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Video Characteristics
MOTOROLA
MC44BC375/U/J/T Technical Data
For More Information On This Product,
Go to: www.freescale.com
7
9
Video Characteristics
10
Audio Characteristics
All audio measurement use specified pre-emphasis circuit.
11
Characterization Measurement Conditions
Device default configuration unless otherwise specified:
Sound subcarrier frequency = 5.5Mhz
Picture-to-sound carrier ratio = 12dB
CH3 & CH4 frequencies
RF Inputs / Output into 75ohm Load using a 75 to 50 ohm transformation.Video Input 1V pk-pk.Audio
pre-emphasis circuit engaged.
Parameter
Test Conditions
Min
Typ
Max
Unit
Type
Video bandwidth
Reference 0dB at 100kHz, measured at
5MHz
75Ohm load
-1.5
-0.5
—
dB
C
Video input level
Video input current
Video input impedance
—
—
500
49
56
—
0.2
—
52
60
+/-1
1
—
85
95
1
.
5
1
—
—
—
+/-5
5
7.2/2.8
90
99.5
Vcvbs
μ
A
K
dB
dB
deg
%
—
%
%
D
A
A
C
C
C
C
B
B
B
Video S/N
Unweighted
Weighted
Differential Phase
Differential Gain
Luma/Sync ratio
Video modulation depth
Peak White Clip
Input ratio 7
.
0:3
.
0
Video input level=1.0 V
cbvs
Video Modulation Depth for Video=1.4 V
cbvs
6.8/3.2
80
90.5
Parameter
Test Conditions
Min
Typ
Max
Unit Type
Picture to Sound ratio
PSS (Pin2) = HI
PSS (Pin2) =LO
14
12
16
14
18
16
dB
dB
B
Picture to Sound ratio
difference
between PSS = HI and PSS = LO
1.5
2.0
2.5
dB
B
Audio FM Modulation Depth
Using specific pre-emphasis circuit - Audio Input: 1Khz @ 205 mVrms
Fs = 4.5 MHz
(100% Modulation = +/- 25 kHz FM Deviation)
75
85
95
%
B
Fs = 5.5 MHz
(100% Modulation = +/- 50 kHz FM Deviation)
75
85
95
%
B
Audio input resistance
45
55
61
k
A
Audio Frequency response
0dB ref @1kHz
Measure from 50Hz to 15kHz
-2.5
-
+2
dB
C
Audio Distortion FM (THD
only)
At 1 kHz and 100% mod (+/- 50 kHz) - No Video
-
0.3
1
%
C
Audio S/N with Sync Buzz FM
50
53
-
dB
C
F
Freescale Semiconductor, Inc.
n
.
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