TDA7405_04 STMICROELECTRONICS [STMicroelectronics], TDA7405_04 Datasheet - Page 23
TDA7405_04
Manufacturer Part Number
TDA7405_04
Description
EQUALIZER CARRADIO SIGNAL PROCESSOR
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.TDA7405_04.pdf
(57 pages)
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Table 7. ELECTRICAL CHARACTERISTICS
V
modulation frequency = 1kHz, input gain = 6dB, T
6
6.1 Features:
MONO/STEREO-SWITCH
V
V
PLL
DEEMPHASIS and HIGHCUT
V
V
Symbol
S
SVRR
PTHMO1
PTHMO0
S
--------------
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-Softmute
Highcut- and Stereoblend-characterisctics programmable in a wide range
FM/AMNoiseblanker with several threshold controls
Multipath-detector with programmable internal/external influence
I
G
G
PTHST1
PTHST0
G
THD
2
R
V
= 9V, deemphasis time constant = 50µs, MPX input voltage V
N
max
step
+
C-bus control of all necessary functions
min
f/f
STEREODECODER-PART
in
in
N
MPX Input Level
Input Resistance
Min. Input Gain
Max. Input Gain
Step Resolution
Supply Voltage Ripple Rejection
Max. Channel Separation
Total Harmonic Distortion
Signal plus Noise to Noise Ratio
Pilot Threshold Voltage
Pilot Threshold Voltage
Pilot Threshold Voltage
Pilot Threshold Voltage
Capture Range
Parameter
Input Gain = 3.5dB
V
f
A-weighted, S = 2V
for Stereo, PTH = 1
for Stereo, PTH = 0
for Mono, PTH = 1
for Mono, PTH = 0
in
ripple
=1kHz, mono
= 100mV, f = 1kHz
Test Conditions
amb
= 27°C, unless otherwise specified.
rms
MPX
Min.
1.75
1.5
8.5
0.5
70
30
80
10
15
10
7
= 500mV (75kHz deviation),
Typ.
0.02
100
0.5
3.5
2.5
11
55
50
91
15
25
12
19
Max.
1.25
12.5
3.25
130
4.5
0.3
25
35
17
25
TDA7405
Unit
V
mV
mV
mV
mV
k
dB
dB
dB
dB
dB
dB
%
%
rms
23/57
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