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PDF TDA7417 Data sheet ( Hoja de datos )
| Número de pieza | TDA7417 | |
| Descripción | Car radio audio processor | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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TDA7417
Car radio audio processor
Features
■ Input Multiplexer
– QD: quasi-differential stereo inputs
– FD: full-differential stereo inputs
– Mono: Mono input
– SE1: stereo single-ended input
– SE2: stereo single-ended input
– In-Gain 0 to 15dB, 1dB step
– internal offset-cancellation (AutoZero)
■ IN/OUT control
– Selectable full-differential stereo inputs or
Bass output
■ Loudness
– 2nd order frequency response
– programmable center frequency
(400Hz/800Hz/2400Hz)
– 15dB with 1dB steps
– soft-step control with programmable blend
times
– selectable low & high frequency boost
■ Volume
– +15dB to -79dB with 1dB step resolution
– soft-step control with programmable blend
times
– multi-step control
■ Bass
– 2nd order frequency response
– center frequency programmable in 4 steps
(60Hz/80Hz/100Hz/200Hz)
– Q programmable 1.0/1.25/1.5/2.0
– DC gain programmable
– -15 to 15dB with 1dB resolution
– soft-step control with programmable blend
times
TQFP32
■ Treble
– 2nd order frequency response
– center frequency programmable in 4 steps
(10KHz/12.5KHz/15KHz/17.5KHz)
– -15 to 15dB with 1dB resolution
■ High pass
– 2nd order frequency response
– center frequency programmable in 3 steps
(80Hz/120Hz/160Hz)
■ Speaker
– independent soft step speaker controls,
+15dB to -79dB with 1dB steps
– Independent programmable mix input with
50% mixing ratio for front speakers
– direct mute
– multi-step control
■ Mute Functions
– digitally controlled SoftMute with 3
programmable mute-times
(0.48ms/0.96ms/123ms)
Description
The TDA7417 is an high performance signal
processor specifically designed for car radio
applications with fully integrated audio filters.
The digital control allows a full programming of
the audioprocessor in a wide range of filter
characteristics.
By using BICMOS-process low distortion and low
noise are obtained.
Table 1.
Device summary
Order codes
TDA7417
TDA7417TR
Package
TQFP32
TQFP32
Packing
Tray
Tape & reel
June 2007
Rev 2
1/34
www.st.com
1
1 page  
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TDA7417
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.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pins connection (Top view). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Input stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Loudness Attenuation @ fP = 400Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Loudness Center frequencies @ Attn. = 15dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Loudness Attenuation, fc=2.4kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Softmute-Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Soft Step and Multi Step timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Bass Control @ fC = 80Hz, Q = 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Bass center Frequencies @ Gain = 14dB, Q = 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Bass Quality factors @ Gain = 14dB, fC = 80Hz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Bass normal and DC Mode @ Gain = 14dB, fc = 80Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Treble Control @ fc = 17.5kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Treble Center Frequencies @ Gain = 14dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Highpass Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Output Selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
IN/OUT control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
TQFP32 Mechanical Data & Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5/34
5 Page 
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TDA7417
Electrical specifications
Table 5.
Symbol
Electrical characteristics (continued)
VS = 8.5V; Tamb= 25 C; RL= 10kΩ; all gains = 0dB; f = 1kHz; unless otherwise specified
Parameter
Test Condition
Min. Typ. Max. Unit
BASS CONTROL
Fc Center frequency (1)
QBASS
Quality factor (1)
CRANGE
ASTEP
DCGAIN
Control range
Step resolution
Bass-DC-gain
TREBLE CONTROL
CRANGE
ASTEP
Control range
Step resolution
fc Center frequency (1)
HPF
fHP Highpass corner frequency (1)
SPEAKER ATTENUATORS
GMAX
Max gain
AMAX
Max attenuation
ASTEP Step resolution
AMUTE Mute attenuation
EE Attenuation set error
VDC DC steps
AUDIO OUTPUTS
VCL
ROUT
RL
CL
Clipping level
Output impedance
Output load resistance
Output load capacitor
fC1
fC2
fC3
fC4
Q1
Q2
Q3
Q4
DC = off
DC = on
54 60 66
72 80 88
90 100 110
180 200 220
0.9 1 1.1
1.1 1.25 1.4
1.3 1.5 1.7
1.8 2 2.2
±14 ±15 ±16
0.5 1 1.5
-1 0 +1
3.5 4.4 5.5
Hz
Hz
Hz
Hz
dB
dB
dB
dB
±14 ±15 ±16 dB
0.5 1 1.5 dB
fC1 8 10 12 kHz
fC2 10 12.5 15 kHz
fC3 12 15 18 kHz
fC4 14 17.5 21 kHz
fHP1 72 80 88 Hz
fHP2 108 120 132 Hz
fHP3 144 160 176 Hz
14 15 16 dB
-83 -79 -75 dB
0.5 1 1.5 dB
80 90
dB
2 dB
Adjacent attenuation steps -5
0.1
5
mV
THD = 1%
2 2.3
VRMS
5 30 100 W
2 kΩ
10 nF
11/34
11 Page | ||
| Páginas | Total 34 Páginas | |
| PDF Descargar | [ Datasheet TDA7417.PDF ] | |
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