TDA7411 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
TDA7411 Datasheet PDF : 43 Pages
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TDA7411
STEREODECODER PART
Features:
– no external components necessary
– PLL with adjustment free, fully integrated VCO
– automatic pilot dependent MONO/STEREO switching
– very high suppression of intermodulation and interference
– programmable Roll-Off compensation
– dedicated RDS-Soft mute
– High cut- and Stereo blend-characteristics programmable in a wide range
– internal Noise blanker with several threshold controls
– alternative frequency search function
– Multipath-detector with programmable internal/external influence
– I2C-bus control of all necessary functions
.
ELECTRICAL CHARACTERISTICS
(VS = 8V; deemphasis time constant = 50µs,VMPX = 500mV(75KHz deviation), fm= 1KHz, Gv = 6dB,
Tamb = 27°C; unless otherwise specified)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
Vin MPX Input Level
Gv = 3.5dB
0.5
1.25 VRMS
Rin Input Resistance
70
100 130
KΩ
GMIN Min. Input Gain
1.5
3.5
4.5
dB
GMAX Max. Input Gain
8.5
11 12.5 dB
GSTEP Step Resolution
1.75 2.5 3.25 dB
SVRR Supply Voltage Ripple Rejection Vripple = 100mV; f = 1KHz
35
60
dB
α
Max. channel Separation
30
50
dB
THD Total Harmonic Distortion
0.02 0.3
%
-S-----+-----N--- Signal plus Noise to Noise Ratio A-weighted, S = 2VRMS
80
91
dB
N
MONO/STEREO-SWITCH
VPTHST1 Pilot Threshold Voltage
VPTHST0 Pilot Threshold Voltage
VPTHMO1 Pilot Threshold Voltage
VPTHMO0 Pilot Threshold Voltage
PLL
∆f/f Capture Range
DEEMPHASIS and HIGHCUT
tHC50 Deemphasis Time Constant
tHC75 Deemphasis Time Constant
tHC50 Highcut Time Constant
tHC75 Highcut Time Constant
for Stereo, PTH = 1
for Stereo, PTH = 0
for Mono, PTH = 1
for Mono, PTH = 1
Bit 7, Subadr, 10 = 0,
VLEVEL >> VHCH
Bit 7, Subadr, 10 = 1,
VLEVEL >> VHCH
Bit 7, Subadr, 10 = 0,
VLEVEL >> VHCL
Bit 7, Subadr, 10 = 1,
VLEVEL >> VHCL
10
15
25
mV
15
25
35
mV
7
12
17
mV
10
19
25
mV
0.5
%
25
50
75
µs
50
75
100
µs
100 150 200
µs
150 225 300
µs
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