tda5670-5x ETC-unknow, tda5670-5x Datasheet - Page 9

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tda5670-5x

Manufacturer Part Number
tda5670-5x
Description
Video Modulator Fm/am-audio With Pll-output
Manufacturer
ETC-unknow
Datasheet

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AC/DC-Characteristics (cont’d)
T
Parameter
Modulation depth
Stability of mod.
depth
Differential gain
Differential phase
Amplitude response of video signal; V
sine signal between black and white
Period of time required for peak white detector to reach steady state for full modulation depth with
1-white pulse per half frame when control is already in the steady state
Setting time for video signal change from 0 Vpp to 1.4 Vpp; video blanking signal content is
uniform white level
Setting time for video blanking signal from 100% white level to 42% grey level with subsequent
rise in grey level to 71% of video blanking signal (due to decontrol process)
Audio
Audio oscillator frequency range; unloaded Q factor of resonance circuit Q
f
Semiconductor Group
resonance
A
= 25
o
= 5.5 MHz
C; V
S
= 12 V
Symbol
m
t
t
t
f
A/OSC
m
m
m
dif
V
D/N
dif
D
D
D
min.
60
0
0.4
4
Video
Limit Values
typ.
70
1
1
1
6
120
2
= 1 Vpp with additional modulation f = 15 kHz-5MHz
9
max.
80
10
15
1.5
50
500
10
7
2.5
2.5
2.5
Unit
%
%
%
%
%
deg
dB
min
MHz
s
s
Test
Condition
staircase signal at
video input;
V
T
V
measured with
measurement
demodulator,
video test signals
and vector scope
C at pin 13 =
10 F;
I
A
leakage
Video
V
S
3 dB;
Video
= 0-60
= 10-13.5 V
u
= 25;
= 1 Vpp
= 1 Vpp
o
2 A
C
TDA 5670-5X
Test
Circuit
6
6
6
6
7
7
8
1
1
1
1

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