TDA7513T_07 Datasheet, PDF (23/84 Pages) STMicroelectronics – Single chip FM/AM tuner with stereo decoder and audio processor

TDA7513T
Electrical characteristcs
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
Mono/stereo switch
VPTHST1 Pilot Threshold Voltage
VPTHST0 Pilot Threshold Voltage
VPTHMO1 Pilot Threshold Voltage
VPTHMOO Pilot Threshold Voltage
for Stereo, PTH = 1
for Stereo, PTH = 0
for Mono, PTH = 1
for Mono, PTH = 0
15
mV
25
mV
12
mV
19
mV
PLL
Δf/f Lock Range
-6
+6
%
Center
min
f0
frequency max
range
step
328
kHz
VCO Vtuning fixed to
reference voltage
619
kHz
9.4
kHz
PILmax Maximum input pilot voltage @TUNERIN
276
mV
Deemphasis and highcut
Bit 7, Subadr, 10 = 0,
τHC50 Deemphasis Time Constant
25 50 75
μs
VLEVEL >> VHCH
τHC75
Bit 7, Subadr, 10 = 1,
Deemphasis Time Constant
50 75 100
μs
VLEVEL >> VHCH
τHC50 Highcut Time Constant
Bit 7, Subadr, 10 = 0,
100 150 200
μs
VLEVEL >> VHCL
τHC75 Highcut Time Constant
Bit 7, Subadr, 10 = 1,
150 225 300
μs
VLEVEL >> VHCL
Stereoblend and highcut control
REF5V Internal Reference Voltage
LGmin Min. LEVEL Gain
LGmax Max. LEVEL Gain
LGstep LEVEL Gain Step Resolution
VSBLmin Min. Voltage for Mono
VSBLmax Max. Voltage for Mono
VSBLstep Step Resolution
VHCHmin Min. Voltage for NO Highcut
VHCHmax Max. Voltage for NO Highcut
VHCHstep Step Resolution
Symbol Parameter
Test Condition
4.7 5 5.3
V
-1
0
1
dB
8 10 12
dB
0.3 0.67 1
dB
25 29 33 %REF5V
54 58 62 %REF5V
2.2 4.2 6.2 %REF5V
38 42 46 %REF5V
62 66 70 %REF5V
5 8.4 12 %REF5V
Min. Typ. Max. Unit
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