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TDA7513T датащи(PDF) 14 Page - STMicroelectronics

номер детали TDA7513T
подробное описание детали  SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR
PDF  59 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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TDA7513T датащи(HTML) 14 Page - STMicroelectronics

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4.3 STEREO DECODER.
Table 25. Stereo Decoder
(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
Rin
Input Resistance
FM
70
100
130
k
Ω
AM
1.4
2
2.6
k
Ω
GV
Stereo decoder
input gain
min
0.5
dB
2.25
dB
4.0
dB
max
5.75
dB
SVRR
Supply Voltage Ripple Rejection
Vripple = 100mV; f = 1KHz
35
60
dB
a
Max. channel Separation
30
45
dB
THD
Total Harmonic Distortion
0.02
0.3
%
(S
+N)/N
Signal plus Noise to Noise Ratio
A-weighted, S = 2Vrms @
APout
80
91
dB
MONO/STEREO-SWITCH
VPTHST1
Pilot Threshold Voltage
for Stereo, PTH = 1
15
mV
VPTHST0
Pilot Threshold Voltage
for Stereo, PTH = 0
25
mV
VPTHMO1
Pilot Threshold Voltage
for Mono, PTH = 1
12
mV
VPTHMOO
Pilot Threshold Voltage
for Mono, PTH = 0
19
mV
PLL
∆f/f
Lock Range
-6
+6
%
f0
Center
frequency
range
min
VCO Vtuning fixed to
reference voltage
328
kHz
max
619
kHz
step
9.4
kHz
PILmax
Maximum input pilot voltage
@TUNERIN
276
mV
DEEMPHASIS and HIGHCUT
τHC50
Deemphasis Time Constant
Bit 7, Subadr, 10 = 0,
VLEVEL >> VHCH
25
50
75
µs
τHC75
Deemphasis Time Constant
Bit 7, Subadr, 10 = 1,
VLEVEL >> VHCH
50
75
100
µs
τHC50
Highcut Time Constant
Bit 7, Subadr, 10 = 0,
VLEVEL >> VHCL
100
150
200
µs
τHC75
Highcut Time Constant
Bit 7, Subadr, 10 = 1,
VLEVEL >> VHCL
150
225
300
µs
STEREOBLEND- and HIGHCUT-CONTROL
REF5V
Internal Reference Voltage
4.7
5
5.3
V
LGmin
Min. LEVEL Gain
-1
0
1
dB
LGmax
Max. LEVEL Gain
8
10
12
dB
LGstep
LEVEL Gain Step Resolution
0.3
0.67
1
dB
VSBLmin
Min. Voltage for Mono
25
29
33
%REF5V
VSBLmax
Max. Voltage for Mono
54
58
62
%REF5V
VSBLstep
Step Resolution
2.2
4.2
6.2
%REF5V
VHCHmin
Min. Voltage for NO Highcut
38
42
46
%REF5V
VHCHmax
Max. Voltage for NO Highcut
62
66
70
%REF5V
VHCHstep
Step Resolution
5
8.4
12
%REF5V



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