TDA7406 Datasheet, PDF (33/64 Pages) STMicroelectronics – Car radio signal processor

TDA7406
Figure 20. Trigger Threshold vs. V_PEAK
VTH
Noise blanker part
260mV (00)
220mV (01)
180mV (10)
140mV (11)
MIN. TR IG . T HR ES HOLD
8 STEPS
65m V
30m V
0.9V
N O ISE C ON TR OLLE D T RIG . TH R ES HO LD
1.5V
VPEAK _[V]
Figure 21. Deviation Controlled Trigger Adjustment
VP _{E A K}
[V_{O P} ]
00
2 .8
01
2 .0
10
1 .2
0 .9
Detector off (11)
20
32.5
45
75
DEVIATION [KH z]
Figure 22. Fieldstrength Controlled Trigger Adjustment
VP _{E A K}
MONO
STEREO
≈ 3V
N O IS E
noisy signal
2.4V (00)
1.9V (01)
1.4V (10)
ATC_SB OFF (11)
good signal
0 .9 V
E'
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