TDA7412 Datasheet, PDF (27/56 Pages) STMicroelectronics – CARRADIO SIGNAL PROCESSOR

TDA7412
2.4.2 ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
V_ADJMP Noise rectifier adjustment
Signal PEAK in
00
through
Testmode
01
Multipath (2)
10
11
0.3
V/ms
0.5
0.7
0.9
R_AMIF AM IF Input resistance
G_AMIF,min min. gain AM IF
G_AMIF,max max. gain AM IF
G_AMIF,step step gain AM IF
Signal AM-RECTIFIER in
Testmode
35
50
65 kOhm
6
dB
20
dB
2
dB
f_AMIF,min min. f_c AM IF
f_AMIF,max max. f_c AM IF
Signal AM-RECTIFIER in
Testmode
14
kHz
56
kHz
Notes:
1.All thresholds are measured using a pulse with T_R = 2 µs, T_HIGH= 2 µs and T_F = 10 µs. The repetition rate must not increase the
PEAK voltage.
2. By design/characterization functionally guaranteed through dedicated test mode structure
V _in
V _op
DC
TR
T _HIGH
TF
Time
Figure 20. Trigger Threshold vs. V_PEAK
VTH
MIN . T R IG . T HR ES H OL D
8 STEPS
65mV
30mV
0.9V
260mV (00)
220mV (01)
180mV (10)
140mV (11)
N O ISE C ON T R OL LE D T RIG . TH R ES H O LD
1.5V
VPEAK _[V]
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