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PDF TDA7415CB Data sheet ( Hoja de datos )
| Número de pieza | TDA7415CB | |
| Descripción | Car radio multimedia signal processor | |
| Fabricantes | STMicroelectronics | |
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TDA7415CB
Car radio multimedia signal processor (CMSP)
Features
■ 6-channel multimedia approach
■ Fully integrated tone control with notch filter
■ 7-band spectrum analyzer
Inputs
■ Three independent signal paths
■ Eight single-ended inputs
■ Two quasi-differential inputs
■ Optional full-differential input
■ Level adjust gain-stages
■ Independent soft-mute and direct-mute
Outputs
■ Three independent signal paths
■ Six output channels with soft-step volume
■ Output level up to 4VRMS
■ Independent soft-mute and direct-mute
■ Flexible phone/navigation interrupts
■ High-pass & subwoofer low-pass filters
Digital control
■ Selectable SPI- or I2C-bus interface
Table 1. Device summary
Order code
Temp range, °C
TDA7415CB
-40 to 85
TQFP64
Description
The TDA7415CB is the first 6-channel multimedia
approach in the car-radio signal processor (CSP)
family. It features full software programmability of
three independent sections. The signal processor
combines a three band audio tone control with an
additional notch filter, high/low pass filters for
subwoofer support and a spectrum-analyzer with
the absence of any external components for the
internal filters. Versatile input/output stages and an
extended signal routing scheme provide all the
flexibility that is needed to serve modern 6-channel
applications such as required by DVD technology.
Package
TQFP64 (10x10x1.4mm)
Packing
Tray
October 2007
Rev 1
1/50
www.st.com
1
1 page  
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TDA7415CB
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Figure 27.
Figure 28.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Signal-flow input-section (the following soft-mute and output buffer are not shown) . . . . . 18
Bass control range; fC= 60Hz, Q= 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Bass center frequencies; gain= 15dB, Q= 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Bass filter quality factors; fC= 60Hz, gain= 15dB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Bass DC-mode frequency responses; gain= 15dB, Q= 1.5 . . . . . . . . . . . . . . . . . . . . . . . . 21
Mid control range; fC= 1kHz, Q= 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Mid center frequencies; gain= 15dB, Q= 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Mid filter quality factors; fC= 1kHz, gain= 15dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Treble control range; fC= 12.5kHz, Q= 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Treble center frequencies; gain= 15dB, Q= 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Room-EQ control range; fC= 200Hz, Q= 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Room-EQ notch frequencies; attenuation= -7dB, Q= 1.0. . . . . . . . . . . . . . . . . . . . . . . . . . 24
Room-EQ notch filter quality factors; fC= 200Hz, attenuation= 7dB.. . . . . . . . . . . . . . . . . 25
Signal flow output section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
High-pass corner frequencies; Q= 0.707 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Low-pass corner frequencies; Q= 0.707. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Line-driver output with reference generation scheme. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Soft-mute signal envelope versus time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Spectrum analyzer block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Read cycle timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
DC-offset detection circuit (simplified) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Switching characteristics (SPI-mode): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Interface in SPI -mode diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
I2C bus interface diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Typical application connections diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
TQFP64 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
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TDA7415CB
4 Electrical specification
Electrical specification
4.1
Supply
Table 4. Supply
Symbol
Parameter
Test conditions
VCC
VP
Itotal
SVRR
Supply Voltage
Supply Current (Line
Driver)
Total Supply Current
VCC = 8.5V; VP = 12V
Ripple Rejection @ 1kHz
Audio Processor (all Filters
flat)
Min.
7.5
Typ.
8.5
Max. Unit
9.5 V
7.5 12 13 V
45 mA
60 dB
4.2
Absolute maximum ratings
Table 5. Absolute maximum ratings
Symbol
Parameter
VCC
VP
Tamb
Tstg
Operating Supply Voltage
Operating Supply Voltage
Operating Temperature Range
Storage Temperature Range
Value
10
13
-40 to 85
-55 to +150
Unit
V
V
°C
°C
4.3 Electrical characteristcs
4.3.1 Input section
Table 6.
VCC = 8.0V; VP = 12.0V; Tamb = 25°C; RL =10kΩ ; all gains = 0dB; f = 1kHz; unless otherwise
specified.
Input section
Symbol
Parameter
Test conditions / remark
Min. Typ. Max. Unit
Rin
VCL
CMRR
Input Impedance
Input Clipping Level
(THD ≤ 0.1%)
Common Mode Rejection
Ratio
Differential inputs (CD, AUX.)
Single-ended inputs
Differential inputs
MD-input, differential mode
Single ended inputs
Differential inputs; (1)
VCM = 1VRMS @ 1kHz
VCM = 1VRMS @ 10kHz
70 100 130 kΩ
70 100 130 kΩ
35 56 65 kΩ
1.4 1.5
2.0 2.2
40 70
VRMS
VRMS
dB
40 60
dB
11/50
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