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TDA7402 Datasheet(PDF) 38 Page - STMicroelectronics

Part # TDA7402
Description  Car radio signal processor
PDF  71 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7402 Datasheet(HTML) 38 Page - STMicroelectronics

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Stereo decoder part
TDA7402
38/71
Figure 24.
Vn timing diagram
Figure 25.
Trigger threshold vs. VPEAK
Figure 26.
Deviation controlled trigger adjustment
Figure 27.
Field strength controlled trigger adjustment
Tim e
V
in
T
R
T
HIGH
T
F
V
op
DC
VTH
MIN . TR IG . T H RE S H O L D
N O ISE CO NT R O L LE D T R IG . THRE S H O L D
1.5 V
0.9 V
260m V (00)
220m V (01)
18 0 m V (1 0)
14 0 m V (1 1)
8 ST EPS
65 m V
30 m V
V PEAK [V]
0.9
DEV IA TIO N [KHz]
2.8
2.0
1.2
20
3 2 .5
45
75
VPEAK
00
01
10
D etector o ff (11)
[V
]
OP
0.9V
noisy signal
good signal
NOISE
2.3V (00)
MONO
STEREO
1.8V (01)
1.3V (10)
ATC_SB OFF (11)
E'
VPEAK
» 3V



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