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PDF TDA7460ND Data sheet ( Hoja de datos )

Número de pieza TDA7460ND
Descripción CAR RADIO SIGNAL PROCESSOR
Fabricantes ST Microelectronics 
Logotipo ST Microelectronics Logotipo



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No Preview Available ! TDA7460ND Hoja de datos, Descripción, Manual

® TDA7460N
CAR RADIO SIGNAL PROCESSOR
DEVICE INCLUDES AUDIO PROCESSOR,
STEREO DECODER, NOISEBLANKER AND
MULTIPATH DETECTOR
HIGH PERFORMANCE SIGNAL PROCES-
SOR
NO EXTERNAL COMPONENTS REQUIRED
FULLY PROGRAMMABLE VIA I2C BUS
LOW DISTORTION
LOW NOISE
DESCRIPTION
The TDA7460N is a high performance signal
processor specifically designed for car radio ap-
plications.
The device includes a complete audioprocessor
and a stereo decoder with noiseblanker,
stereoblend and all signal processing functions
necessary for state-of-the-art as well as future car
radio systems.
Switched-capacitors design technique allows to
obtain all these features without external compo-
BLOCK DIAGRAM
SO20
ORDERING NUMBER: TDA7460ND
nents or adjustments. This means that higher
quality and reliability walks alongside an overall
cost saving.
The CSP is fully programmable by I2C bus inter-
face allowing to customize key device parameters
and especially filter characteristics.
The BICMOS process combined with the opti-
mized signal processing assure low noise and
low distortion performances.
CDL CDG CDR
543
8
AM
CASS R
CASS L
1
2
PHONE
(MPIN)
PHONE GND
(MPOUT)
7
6
MIXING
STAGE
INPUT
MULTIPLEXER
+
AUTO ZERO
PHONE
BEEP
FM R
FM L
LOUDNESS
VOLUME
9
MPX
80KHz
LP
PILOT
CANCELLATION
DEMODULATOR
+ STEREO ADJUST
+ STEREO BLEND
SMUTE
11
SOFT
MUTE
TREBLE
DIGITAL CONTROL
25KHz
LP
S&H
BASS
OUT LR
OUT LF
OUT RR
OUT RF
17
19
16
18
OUT LR
OUT LF
OUT RR
OUT RF
I2C BUS
12
SCL
13
SDA
HIGH
CUT
CONTROL
15
VS
SUPPLY
14 20
GND CREF
PLL
PIL
DET
MULTIPATH-
DETECTOR
NOISE
BLANKER
PULSE
FORMER
D
A
10
LEVEL
D97AU629A
June 2000
1/31

1 page




TDA7460ND pdf
TDA7460N
ELECTRICAL CHARACTERISTICS (continued)
Symbol
Parameter
BEEP CONTROL
VRMS
Beep Level
fBMIN
Lower Beep Frequency
fBMAX
Higher Beep Frequency
MIXING CONTROL
MLEVEL Mixing Level
VOLUME CONTROL
GMAX
Max Gain
AMAX
Max Attenuation
ASTEP
Step Resolution
EA Attenuation Set Error
ET Tracking Error
VDC DC Steps
LOUDNESS CONTROL
ASTEP
Step Resolution
AMAX
Max. Attenuation
fCMIN
Lower Center Frequency
fCMAX
Higher Center Frequency
SOFT MUTE
AMUTE Mute Attenuation
TD Delay Time
VTHlow
VTHhigh
RPU
VPU
Low Threshold for SM Pin1
High Threshold for SM Pin
Internal Pull-up Resistor
Pull-up Voltage
SOFT STEP
TSW Switch Time
1) The SM pin is active low (Mute = 0)
Test Condition
Source
Source
Source
Beep/Phone
G = -20 to 20dB
G = -60 to 20dB
Adjacent Attenuation Steps
From 0dB to GMIN
T1
T2
T3
T4
Min. Typ. Max. Unit
250 350 500 mV
570 600 630
Hz
1.15 1.2 1.25 KHz
-1 0
1 dB
-5 -6 -7 dB
-10 -12 -14 dB
-1 0
1 dB
19 20 21 dB
-83 -79 -75 dB
0.5 1 1.5 dB
-1.25
0
1.25 dB
-4 0
3 dB
2 dB
-3 0.1 3 mV
-7 0.5 +7 mV
0.5 1 1.5
-16 -15 -14
180 200 220
360 400 440
dB
dB
Hz
Hz
60 100
0.48 1
0.96 2
20 40.4 60
200 324 600
1
2.5
70 100 130
4.7
dB
ms
ms
ms
ms
V
V
K
V
5 10 15 ms
5/31

5 Page





TDA7460ND arduino
Figure 8. Bass Control @ fc = 80Hz, Q = 1
15.0
10.0
5.0
0.0
-5.0
-10.0
-15.0
10.0
100.0
1.0K
10.0K
Figure 10. Bass Quality factors @ Gain =
14dB, fc = 80Hz
15.0
12.5
10.0
7.5
5.0
2.5
0.0
10.0
100.0
1.0K
10.0K
Figure 12. Treble Control @ fc = 17.5KHz
15.0
10.0
5.0
0.0
-5.0
-10.0
-15.0
10.0
100.0
1.0K
10.0K
TDA7460N
Figure 9. Bass Center @ Gain = 14dB, Q = 1
15.0
12.5
10.0
7.5
5.0
2.5
0.0
10.0
100.0
1.0K
10.0K
Figure 11. Bass normal and DC Mode @ Gain
= 14dB, fc = 80Hz
15.0
12.5
10.0
7.5
5.0
2.5
0.0
10.0
100.0
1.0K
10.0K
Note: In general the center frequency, Q and DC-mode can be set
independently. The exception from this rule is the mode (5/xx1111xx)
where the center frequency is set to 150Hz instead of 100Hz.
Figure 13. Treble Center Frequencies
@ Gain = 14dB
15.0
12.5
10.0
7.5
5.0
2.5
0.0
10.0
100.0
1.0K
10.0K
11/31

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