TDA7411 ST Microelectronics, TDA7411 Datasheet - Page 17

• Manufacturer Part Number: TDA7411
• Description: ADVANCED CAR SIGNAL PROCESSOR
• Manufacturer: ST Microelectronics

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
– I
.
ELECTRICAL CHARACTERISTICS
(V
T
MONO/STEREO-SWITCH
PLL
DEEMPHASIS and HIGHCUT
V
V
Symbol
V
V
amb
GSTEP
GMAX
SVRR
S
S
--------------
PTHMO1
PTHMO0
PTHST1
PTHST0
t
t
t
t
G
THD
2
HC50
HC75
HC50
HC75
V
R
C-bus control of all necessary functions
= 8V; deemphasis time constant = 50 s,V
+
N
MIN
f/f
in
in
= 27°C; unless otherwise specified)
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
Deemphasis Time Constant
Deemphasis Time Constant
Highcut Time Constant
Highcut Time Constant
Parameter
G
Vripple = 100mV; f = 1KHz
A-weighted, S = 2V
for Stereo, PTH = 1
for Stereo, PTH = 0
for Mono, PTH = 1
for Mono, PTH = 1
Bit 7, Subadr, 10 = 0,
V
Bit 7, Subadr, 10 = 1,
V
Bit 7, Subadr, 10 = 0,
V
Bit 7, Subadr, 10 = 1,
V
LEVEL
LEVEL
LEVEL
LEVEL
v
= 3.5dB
MPX
>> V
>> V
>> V
>> V
Test Condition
= 500mV(75KHz deviation), fm= 1KHz, Gv = 6dB,
HCH
HCH
HCL
HCL
RMS
Min.
1.75
100
150
1.5
8.5
0.5
70
35
30
80
10
15
10
25
50
7
Typ.
0.02
100
150
225
0.5
3.5
2.5
11
60
50
91
15
25
12
19
50
75
Max.
1.25
12.5
3.25
130
100
200
300
4.5
0.3
25
35
17
25
75
TDA7411
V
Unit
K
mV
mV
mV
mV
dB
dB
dB
dB
dB
dB
RMS
17/43
%
%
s
s
s
s