tda5667-5 ETC-unknow, tda5667-5 Datasheet - Page 8

• Manufacturer Part Number: tda5667-5
• Description: Video Modulator Fm/am-audio
• Manufacturer: ETC-unknow

AC/DC-Characteristics (cont’d)
T
Parameter
Unmodulated video and audio carrier, measured with the spectrum analyzer as difference
between video carrier signal level and sideband signal level; loaded Q factor Q
oscillator resonance circuit adjusted by R
12.5 dB; Q
Video to audio
carrier ratio
Harmonic wave ratio
Harmonic wave ratio
All remaining harmonic waves; multiple of fundamental wave of video carrier, without video
signal, measured with spectrum analyzer; f
Residual carrier
suppression
Signal-to-noise in
video; unmodulated
audio carrier
Interference product
ratio audio in video
AM-modulation
FM-modulation of
audio carrier
Unweighted AM-
Unweighted FM-
interference level
ratio video in audio
Signal-to-noise ratio
of audio oscillator
Video
Video input current
at pin 10
Video input voltage
at pin 10
Semiconductor Group
A
= 25
o
C; V
U
= 25
S
= 12 V
Symbol
– I
V
10
V/A
O
O
R
N/V
A/V
A/V
V/A
V/A
N/A
N/A
10
min.
10
35
42
15
32
48
49
48
48
48
48
48
0
0.7
Limit Values
P
typ.
12.5
48
48
74
62
60
54
54
54
54
to provide the required video to audio carrier ratio of
VC
= 523.25-623.25 MHz; pin 12 open
8
max.
15
1
1.4
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
A
pp
Test
Condition
f
(5.5 MHz)
f
(11 MHz)
f
(16.5 MHz)
Ch 30...40
Ch 30...40
Ch 30...40,
m
Ch 30...40
Ch 39; test picture
FuBK
Ch 39; test picture
FuBK
AM unmodulated
FM-audio carrier
C
C
VC
VC
VC
10
10
A
= 90%
+ f
+ 2 f
+ 3 f
100 nF
100 nF
AC
AC
AC
L
of the audio
TDA 5667-5
Test
Circuit
1
1
1
1
3
4
4
4
5
5
5
5
1
1