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MC44355DW Ver la hoja de datos (PDF) - Motorola => Freescale

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MC44355DW Datasheet PDF : 20 Pages
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MC44353 MC44354 MC44355
VIDEO CHARACTERISTICS
Characteristic
Test Conditions
Min
Typ
Max
Unit Type
Video Bandwidth
(0/–1.0 dB; ref 0 dB @ 100 kHz)
5
-
MHz
C
Video Input Level
Video Input Current
1.5
VCVBS
D
50
200
nA
A
Peak White Clip (Note 1)
108
112
116
%
B
Video Input Impedance
Measured at 1.0 kHz (at Pin 13)
500/4
k/pF
D
Video S/N
Differential Phase
See Note 2
Figure 6 Figure 6 dB
C
Figure 7 Figure 7 Figure 7
°
C
Differentical Gain
On line CCIR 310, worst from the
1.0
5
%
C
first 4 steps out of 5
Luma/Sync ratio
Input ratio 7.0:3.0
6.8/3.2
7.2/2.8
B
PAL Video Modulation Depth Step 3
SECAM Video Modulation Depth
Step 5 (MC44353 Only)
76
82
88
%
B
Programmable in 8 steps of 2.5%
84.5
90.5
96.5
%
B
NOTES: 1. The circuit is equipped with a ’soft clip’ function. The Video Modulation depth is measured for a 1.0 VCVBS input level, giving modulation depth
MDA; then the same measurement is carried out for an input level of 1.5 VCVBS, giving modulation depth MDB. The Peak White Clip is defined as
100*(MDB)/(MBA).
2. The frequency dependent specifications are greatly influenced by the PCB layout in the application. These specifications have all been measured
using a Motorola application layout and circuit similarly as shown in Figures 19 and 21. The reference number for ordering this evaluation board
is MC44350EVK.
Figure 6. Video Signal to Noise
60
Typical Performance
55
Maximum Specification Limit
50
45
21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69
Channel Number
Figure 7. Differential Phase
8.0
6.0
Maximum Specification Limit
4.0
2.0
0
Typical Performance
–2.0
–4.0
–6.0
Minimum Specification Limit
–8.0
21 24 27 30 33 36 39 42 45 48 51 54 57 60 63 66 69
Channel Number
6
MOTOROLA ANALOG IC DEVICE DATA
 

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