TDA7513T_07 Datasheet, PDF (24/84 Pages) STMicroelectronics – Single chip FM/AM tuner with stereo decoder and audio processor

Electrical characteristcs
TDA7513T
Table 25. Stereo decoder (continued)
(Vcc = 8V; deemphasis time constant = 50µs, VMPX = 305mVrms (75kHz deviation), fm=
1kHz, Gv = 4dB, Tamb = 27°C; unless otherwise specified)
Symbol
Parameter
Test condition
Min. Typ. Max. Unit
VHCLmin
Min. Voltage for FULL
Highcut
12 17 22 %VHCH
VHCLmax
Max. Voltage for FULL
Highcut
28 33 38 %VHCH
VHCLstep Step Resolution
2.2 4.2 6.2 %VHCH
Carrier and harmonic suppression at the output
α19 Pilot Signal f = 19KHz
α38 Subcarrier f = 38KHz
40 50
dB
75
dB
α57 Subcarrier f = 57KHz
α76 Subcarrier f = 76KHz
62
dB
90
dB
2.5
Noise blanker
Table 26. Noise blanker
Symbol
Parameter
Test condition
NBT = 111
NBT = 110
NBT = 101
VTR
Trigger Threshold ⁽¹⁾ meas. with V_PEAK = ^{NBT = 100}
(2)
0.9V
NBT = 011
NBT = 010
NBT = 001
NBT = 000
NCT = 00
VTRNOISE
Noise Controlled
Trigger threshold ⁽⁴⁾
meas. with VPEAK
= 1.5V
NCT = 01
NCT = 10
VMPX = 0mV
NCT = 11
NRD ⁽⁸⁾ = 00
VRECT Rectifier Voltage
V_MPX = 50mV; f = 150KHz
VMPX = 200mV; f = 150KHz
Min. Typ. Max. Unit
(3) ₃₀ (3) _mV
(3) ₃₅ (3) _mV
(3) ₄₀ (3) _mV
(3) ₄₅ (3) _mV
(3) ₅₀ (3) _mV
(3) ₅₅ (3) _mV
(3) ₆₀ (3) _mV
(3) ₆₅ (3) _mV
(3) ₂₆₀ (3) _mV
(3) ₂₂₀ (3) _mV
(3) ₁₈₀ (3) _mV
(3) ₁₄₀ (3) _mV
0.5 0.9 1.3 V
1.5 1.7 2.1 V
2.2 2.5 2.9 V
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