TDA7411 Datasheet, PDF (18/43 Pages) STMicroelectronics – ADVANCED CAR SIGNAL PROCESSOR

TDA7411
ELECTRICAL CHARACTERISTICS (continued)
(V_S = 8V; deemphasis time constant = 50µs,V_MPX = 500mV(75KHz deviation), fm= 1KHz, Gv = 6dB,
T_amb = 27°C; unless otherwise specified)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
STEREOBLEND-and HIGHCUT-CONTROL
REF5V Internal Reference Voltage
4.7
5
5.3
V
T_CREF5V Temperature Coefficient
3300
ppm
L_Gmin Min. LEVEL Gain
-1
0
1
dB
L_Gmax Max. LEVEL Gain
8
10
12
dB
L_Gstep LEVEL Gain Step Resolution
0.3 0.67
1
dB
VSBL_min Min. Voltage for Mono
25
29
33 %REF5V
VSBL_max Min. Voltage for Mono
54
58
62 %REF5V
VSBL_step Step Resolution
2.2
4.2
6.2 %REF5V
VHCH_min Min. Voltage for NO Highcut
38
42
46 %REF5V
VHCH_max Min. Voltage for NO Highcut
62
66
70 %REF5V
VHCH_step Step Resolution
5
8.4
12 %REF5V
VHCL_min Min. Voltage for FULL Highcut
12
17
22 %VHCH
VHCL_max Max. Voltage for FULL Highcut
28
33
38 %VHCH
VHCL_step Step Resolution
2.2
4.2
6.2 %VHCH
Carrier and harmonic suppression at the output
α19 Pilot Signal f = 19KHz
40
50
dB
α38 Subcarrier f = 38KHz
75
dB
α57 Subcarrier f = 57KHz
62
dB
α76 Subcarrier f = 76KHz
90
dB
Intermodulation (Note 1)
α2
f_mod = 10KHz, f_spur = 1KHz
65
dB
α3
f_mod = 13KHz, f_spur = 1KHz
75
dB
Traffic Ratio (Note 2)
α57 Signal f = 57KHz
70
dB
SCA - Subsidiary Communications Authoorization (Note 3)
α67 Signal f = 67KHz
75
dB
ACI - Adjacent Channel Interference (Note 4)
α114 Signal f = 114KHz
95
dB
α190 Signal f = 190KHz
84
dB
Notes to the characteristics:
1. Intermodulation Suppression:
α2
=
----^V----^O----⁽--^s---ⁱ-^g---ⁿ---^a----^l-⁾--⁽--^a---^t--¹---^k---^H----^z--⁾----
V_{O(spurious)(at1kHz)}
;
f_s
=
(2
x
10kHz)
-
19kHz
α3
=
----^V----^O----⁽--^s---ⁱ-^g---ⁿ---^a----^l-⁾--⁽--^a---^t--¹---^k---^H----^z--⁾----
V_{O(spurious)(at1kHz)}
;
f_s
=
(3
x
13kHz)
-
38kHz
measured with: 91% pilot signal; fm = 10kHz or 13kHz.
2. Traffic Radio (V.F.) Suppression: measured with: 91% stereo signal; 9% pilot signal; fm=1kHz; 5% sub-
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