TDA7406T View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7406T' PDF : 49 Pages View PDF
TDA7406T
3 STEREODECODER PART
3.1 Features:
s No external components necessary
s PLL with adjustment free, fully integrated VCO
s Automatic pilot dependent MONO/STEREO switching
s Very high suppression of intermodulation and interference
s Programmable Roll-Off compensation
s Dedicated RDS-Softmute
s Highcut and Stereoblend-characteristics programmable in a wide range
s FM/AM noiseblanker with several threshold controls
s Multipath-detector with programmable internal/external influence
s I2C-bus control of all necessary functions
Table 2. ELECTRICAL CHARACTERISTICS
VS = 9V, de-emphasis time constant = 50µs, MPX input voltage VMPX = 500mV (75kHz deviation),
modulation frequency = 1kHz, input gain = 6dB, Tamb = 27°C, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min. Typ. Max.
Unit
Vin
Rin
Gmin
Gmax
Gstep
SVRR
α
MPX Input Level
Input Resistance
Min. Input Gain
Max. Input Gain
Step Resolution
Supply Voltage Ripple Rejection
Max. Channel Separation
Input Gain = 3.5dB
Vripple = 100mV, f = 1kHz
0.5 1.25
70
100 130
1.5
3.5
4.5
8.5
11 12.5
1.75 2.5 3.25
60
30
50
Vrms
kΩ
dB
dB
dB
dB
dB
THD
-S-----N+-----N---
Total Harmonic Distortion
Signal plus Noise to Noise Ratio
fin=1kHz, mono
A-weighted, S = 2Vrms
0.02 0.3
%
80
91
dB
MONO/STEREO-SWITCH
VPTHST1 Pilot Threshold Voltage
VPTHST0 Pilot Threshold Voltage
VPTHMO1 Pilot Threshold Voltage
VPTHMO0 Pilot Threshold Voltage
PLL
for Stereo, PTH = 1
for Stereo, PTH = 0
for Mono, PTH = 1
for Mono, PTH = 0
10
15
25
mV
15
25
35
mV
7
12
17
mV
10
19
25
mV
∆f/f Capture Range
0.5
%
DEEMPHASIS and HIGHCUT
20/49
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