TDA5666-5 データシートの表示（PDF） - Infineon Technologies
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TDA5666-5 Datasheet PDF : 22 Pages
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TDA 5666-5
AC/DC-Characteristics (cont’d)
TA = 25 oC; VS = 12 V
Parameter
Symbol
Limit Values
Unit
min. typ. max.
Test
Condition
Test
Circuit
Unmodulated video and audio carrier, measured with the spectrum analyzer as difference
between video carrier signal level and sideband signal level; loaded Q factor QL of the audio
oscillator resonance circuit adjusted by RP to provide the required video to audio carrier ratio of
12.5 dB; QU = 25
Video to audio
αV/A
10
12.5 15
dB
fVC + fAC
1
carrier ratio
(5.5 MHz)
Harmonic wave ratio αO
Harmonic wave ratio αO
35
48
42
48
dB
fVC + 2 fAC
1
(11 MHz)
dB
fVC + 3 fAC
1
(16.5 MHz)
All remaining harmonic waves; multiple of fundamental wave of video carrier, without video
signal, measured with spectrum analyzer; fVC = 523.25-623.25 MHz; pin 12 open
α
15
dB
1
Residual carrier
αR
32
suppression
dB
Ch 30...40
3
Signal-to-noise in
video; unmodulated
audio carrier
αN/V
48
74
dB
Ch 30...40
4
Interference product αA/V
ratio audio in video
FM-modulation of
audio carrier
48
60
dB
Ch 30...40
4
Unweighted FM-
αV/A
interference level
ratio video in audio
48
54
dB
Ch 39; test
5
picture FuBK
Signal-to-noise ratio αN/A
of audio oscillator
48
54
dB
FM-audio carrier 5
Video
Video input current –I10
0
at pin 10
1
µA
C10 ≤ 100 nF
1
Video input voltage V10
0.7
at pin 10
1.4
Vpp C10 ≤ 100 nF
1
Modulation depth mD/N
60
70
80
%
staircase signal at 6
video input;
VVideo = 1 Vpp
Semiconductor Group
8
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