Freescale Semiconductor, Inc.
Video Characteristics
9 Video Characteristics
Parameter
Test Conditions
Min
Typ
Max
Unit Type
Reference 0dB at 100kHz, measured at
5MHz
Video bandwidth
-1.5
-0.5
—
dB
C
Video input level
75Ohm load
—
—
—
0.2
—
1.5
1
Vcvbs
µA
D
A
A
Video input current
Video input impedance
500
—
KΩ
Unweighted
Weighted
49
56
52
60
—
—
dB
dB
C
C
Video S/N
Differential Phase
Differential Gain
Luma/Sync ratio
+/-1
1
+/-5
5
deg
%
C
C
B
B
B
Input ratio 7.0:3.0
6.8/3.2
80
—
7.2/2.8
90
—
%
Video modulation depth Video input level=1.0 V
85
95
cbvs
Peak White Clip
Video Modulation Depth for Video=1.4 V
90.5
99.5
%
cbvs
10 Audio Characteristics
All audio measurement use specified pre-emphasis circuit.
Parameter
Test Conditions
Min Typ Max Unit Type
PSS (Pin2) = HI
PSS (Pin2) =LO
14
12
16
14
18
16
dB
dB
Picture to Sound ratio
B
B
Picture to Sound ratio
difference
between PSS = HI and PSS = LO
1.5
2.0
2.5
dB
Using specific pre-emphasis circuit - Audio Input: 1Khz @ 205 mVrms
Fs = 4.5 MHz
(100% Modulation = +/- 25 kHz FM Deviation)
Audio FM Modulation Depth
75
85
95
%
B
Fs = 5.5 MHz
(100% Modulation = +/- 50 kHz FM Deviation)
75
45
85
55
-
95
61
+2
%
kΩ
dB
B
A
C
Audio input resistance
0dB ref @1kHz
Measure from 50Hz to 15kHz
Audio Frequency response
-2.5
Audio Distortion FM (THD
only)
At 1 kHz and 100% mod (+/- 50 kHz) - No Video
-
0.3
53
1
-
%
C
C
Audio S/N with Sync Buzz FM
50
dB
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.
MOTOROLA
MC44BC375/U/J/T Technical Data
For More Information On This Product,
Go to: www.freescale.com
7
MOTOROLA [ MOTOROLA ]
