E-TDA7416 [STMICROELECTRONICS]
Car Radio signal Processor with spectrum analyzer;
| 型号： | E-TDA7416 |
| 厂家： | 
ST |
| 描述： | Car Radio signal Processor with spectrum analyzer 商用集成电路 |
| 文件： | 总37页 (文件大小：434K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
TDA7416
Car radio signal processor
Features
■ 3 stereo inputs
■ 1 pseudo differential stereo input
■ Volume control
■ 7 band equalizer filter control
■ High-pass filter for subwoofer application
■ Dir ec t m ut e a nd so ft m u te
■ 4 independent speaker outputs
■ Soft-step speaker control
■ Subwoofer output with soft step
■ 7 band spectrum analyzer
■ Full mixing capability
'!0'03ꢀꢀꢁꢁꢂ
TQFP44
Table 1.
Order code
E-TDA7416
Device summary
Package
Packing
■ HPF2 with ZeroCross
■ I2C bus interface
TQFP44
Tray
Description
The device includes a high performance audio
processor with 7 bands equalizer and spectrum
analyzer.
The digital control allows a programming in a wide
range of all the filter characteristics.
September 2013
Doc ID 9837 Rev 3
1/37
www.st.com
1
Contents
TDA7416
Contents
1
2
3
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pins connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1
3.2
3.3
3.4
3.5
Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4
Description of the audio processor part . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1
4.2
Audio processor features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Input stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2.1
4.2.2
Pseudo-differential stereo input (IN1) . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Single-ended stereo inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3
4.4
AutoZero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.1
AutoZero remain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Loudness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4.1
4.4.2
4.4.3
4.4.4
Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Peak frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Loudness filter order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Flat mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.5
4.6
4.7
Soft-mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Soft-step volume and speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Equalizer filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.7.1
4.7.2
4.7.3
4.7.4
4.7.5
Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Quality Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Superposition of all equalizer filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
DC-mode of equalizer band 1 (62/100 Hz) . . . . . . . . . . . . . . . . . . . . . . 20
4.8
4.9
Subwoofer application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Spectrum analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
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TDA7416
Contents
4.10 AC coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.11 Front speaker attenuator and mixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.12 Audio processor testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.13 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5
I2C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1
Interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.1
5.1.2
5.1.3
Auto increment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Transmitted data (send mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Reset condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2
5.3
Subaddress (receive mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Data byte specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.3.7
5.3.8
5.3.9
Input selector (0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Loudness (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Volume (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Equalizer (3,4,5,6,7,8,9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mixing programming (10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Soft-mute and HPF2 (11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Subwoofer configuration / spectrum analyzer / high-pass (12) . . . . . . . 31
Configuration audio processor I (13) . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Mixer level control (14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.3.10 Speaker and subwoofer level control (15,16,17,18,19) . . . . . . . . . . . . . 33
5.3.11 Testing audio processor (20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6
7
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Doc ID 9837 Rev 3
3/37
List of tables
TDA7416
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Table 18.
Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Subaddress (receive mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Input selector (0). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Loudness (1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Volume (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Equalizer (3,4,5,6,7,8,9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Mixing programming (10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Soft-mute and HPF2 (11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Subwoofer configuration / spectrum analyzer / high-pass (12). . . . . . . . . . . . . . . . . . . . . . 31
Configuration audio processor I (13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Mixer level control (14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Speaker and subwoofer level control (15,16,17,18,19) . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Testing audio processor (20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
4/37
Doc ID 9837 Rev 3
TDA7416
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pins connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Input stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Loudness attenuation @ fP = 400 Hz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Loudness center frequencies @ Attn. = 15 dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
st
nd
1 and 2 order loudness @ Attn. = 15 dB, f = 400 Hz. . . . . . . . . . . . . . . . . . . . . . . . . . 16
P
Soft-mute timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Soft-step timing for volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Equalizer filter control @ fCenter = 1kHz, Q = 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 10. Center frequencies @ Gain = 15dB, Q = 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 11. Quality factors @ boost = 15dB, fCenter = 1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 12. Superposition of all EQ bands @ boost = 15dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 13. EQ band1, normal- and DC-mode @ boost = 15 dB, fCenter = 62 Hz. . . . . . . . . . . . . . . . 20
Figure 14. Subwoofer application with low-pass @ 80/120/160Hz and high-pass @ 90/135/180Hz . 20
Figure 15. Spectrum analyzer block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 16. Timing spectrum analyzer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 17. AC/DC coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 18. Output selector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 19. Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 20. Interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 21. TQFP44 mechanical data and package dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Doc ID 9837 Rev 3
5/37
Block diagram
TDA7416
1
Block diagram
Figure 1.
Block diagram
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6/37
Doc ID 9837 Rev 3
TDA7416
Pins connection
2
Pins connection
Figure 2.
Pins connection (top view)
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Doc ID 9837 Rev 3
7/37
Electrical specifications
TDA7416
3
Electrical specifications
3.1
Supply
Table 2.
Symbol
Supply
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VS
IS
Supply voltage
Supply current
7.5
35
9
10
55
V
VS = 9 V
45
mA
Ripple rejection @
1kHz
SVRR
Audio processor (all Filters flat)
-
60
-
dB
3.2
3.3
Thermal data
Table 3.
Symbol
Thermal data
Description
Value
Unit
Rth j-pins Thermal resistance junction-to-pins
max
65
°C/W
Absolute maximum ratings
Table 4.
Symbol
Absolute maximum ratings
Parameter
Value
Unit
VS
Operating supply voltage
Operating temperature range
Storage temperature range
10.5
V
Tamb
Tstg
-40 to 85
°C
°C
-55 to +150
3.4
ESD
All pins are protected against ESD according to the MIL883 standard.
8/37
Doc ID 9837 Rev 3
TDA7416
Electrical specifications
3.5
Electrical characteristics
VS = 9 V; Tamb = 25 °C; RL = 10 k; all gains = 0 dB; f = 1 kHz; unless otherwise specified.
Table 5.
Symbol
Electrical characteristics
Parameter
Test condition
Min.
Typ.
Max.
Unit
Input selector
Rin
VCL
SIN
Input resistance
All single-ended Inputs
70
1.8
80
-1
100
2.2
100
0
130
k
VRMS
dB
Clipping level
-
Input separation
-
GIN MIN Min. input gain
GIN MAX Max. input gain
GSTEP Step resolution
-
1
17
1.5
5
dB
-
13
0.5
-5
15
1
dB
-
dB
Adjacent gain steps
1
mV
mV
mV
VDC
DC steps
G
-
MIN to GMAX
-10
-
1
10
-
Voffset Remaining offset with AutoZero
0.5
Differential stereo inputs
Rin
CMRR Common mode rejection ratio
eNO
Input resistance (see Figure 3)
Differential
70
46
46
-
100
70
130
k
dB
dB
µV
V
CM = 1 VRMS @ 1 kHz
CM = 1 VRMS @ 10 kHz
-
-
-
V
60
Output-noise @ speaker-outputs 20Hz - 20kHz, flat; all stages 0dB
11
Mixing control
MLEVEL Mixing ratio
GMAX Max. gain
Main / mix-source
-
-6/-6
15
-
dB
dB
dB
dB
-
-
-
13
-83
0.5
17
-75
1.5
AMAX Max. attenuation
ASTEP Attenuation step
-79
1
Loudness control
ASTEP Step resolution
AMAX Max. attenuation
-
0.5
-21
1
1.5
-17
dB
dB
Hz
Hz
Hz
Hz
-
-19
200
400
600
800
fP1
fP2
fP3
fP4
180
360
540
720
220
440
660
880
fPeak
Peak frequency
Volume control
GMAX Max. gain
-
-
-
18
-83
0
20
-79
0.5
22
-75
1
dB
dB
dB
AMAX Max. attenuation
ASTEP Step resolution
Doc ID 9837 Rev 3
9/37
Electrical specifications
TDA7416
Unit
Table 5.
Symbol
Electrical characteristics (continued)
Parameter
Test condition
G = -20 to +20 dB
Min.
Typ.
Max.
-0.75
0
0
+0.75
dB
dB
EA
ET
Attenuation set error
Tracking error
DC steps
G = -80 to -20 dB
-
-4
-
3
2
3
5
-
dB
Adjacent attenuation steps
From 0dB to GMIN
-
0.1
0.5
mV
mV
VDC
-
Soft-mute
AMUTE Mute attenuation
-
80
-
100
0.48
0.96
123
-
-
1
dB
ms
ms
ms
V
T1
T2
T3
-
TD
Delay time
-
2
70
-
170
1
VTH low Low threshold for SM-Pin 1)
VTH high High threshold for SM - Pin
-
2.5
32
-
-
-
V
RPU
VPU
Internal pull-up resistor
Internal pull-up Voltage
-
45
58
-
k
V
-
3.3
Equalizer control
CRANGE Control range
ASTEP Step resolution
-
+14
0.5
+15
1
+16
1.5
dB
dB
-
fC1a
55
62
100
157
396
1
69
Hz
fC1
Center frequency band 1
fC1b
90
110
173
437
1.1
Hz
fC2
fC3
fC4
fC5
Center frequency band 2
Center frequency band 3
Center frequency band 4
Center frequency band 5
fC2
141
365
0.9
Hz
fC3
Hz
fC4
kHz
kHz
kHz
kHz
kHz
kHz
fC5
2.25
3.6
2.51
4
2.76
4.4
fC6a
fC6
Center frequency band 6
Center frequency band 7
fC6b
5.70
13.5
14.4
0.9
6.34
15
16
1
6.98
16.5
17.6
1.1
fC7a
fC7
fC7b
Q1
Q2
1.26
1.62
1.98
-1
1.4
1.8
2.2
0
1.54
1.98
2.44
+1
Q
Quality factor
Q3
Q4
DC = off
dB
dB
DCGAIN DC-gain, Band 1
DC = on, 15dB boost
4
10/37
Doc ID 9837 Rev 3
TDA7416
Electrical specifications
Table 5.
Symbol
Electrical characteristics (continued)
Parameter Test condition
Min.
Typ.
Max.
Unit
Spectrum analyzer control
VSAOut Output voltage range
-
0
3.3
69
V
fC1
fC2
fC3
fC4
fC5
fC6
fC7
Center frequency band 1
Center frequency band 2
Center frequency band 3
Center frequency band 4
Center frequency band 5
Center frequency band 6
Center frequency band 7
fC1
fC2
fC3
fC4
fC5
fC6
fC7
Q1
Q2
-
55
62
157
396
1
Hz
141
356
0.9
2.26
5.70
14.4
1.62
3.15
1
173
436
1.1
2.76
6.98
17.6
1.98
3.85
100
-
Hz
Hz
kHz
kHz
kHz
kHz
2.51
6.34
16
1.8
3.5
-
Q
Quality factor
fSAClk Clock frequency
kHz
µs
tSAdel Analog output delay time
trepeat Spectrum analyzer repeat time
-
2
-
-
50
-
-
ms
ms
tintres
HPF2
Internal reset time
-
-
3
-
VTH
EMAX
EMIN
Zero crossing threshold
Max. effect
-
-
-
-
-
-
20
22
4
-
-
mV
dB
dB
dB
Min. effect
-
-
ESTEP Step resolution
1.5
2
2.5
Speaker attenuators
Rin
Input Impedance
-
35
13
-83
0.5
80
-
50
15
65
17
-75
1.5
-
k
dB
dB
dB
dB
dB
mV
%
GMAX Max. gain
-
AMAX Max. attenuation
ASTEP Step resolution
AMUTE Output mute attenuation
-
-79
1
-
-
90
EE
VDC
MR
Attenuation set error
DC steps
-
-
3
Adjacent Attenuation Steps
Signal/MixIn
-
0.5
50/50
5
Mixing ratio
-
-
Audio outputs
VCLIP Clipping level
Thd=0.3%
1.8
2.2
-
-
-
VRMS
k
RL
CL
Output load resistance
-
-
-
2
-
Output load capacitance
Output impedance
-
10
120
nF
ROUT
-
30
W
Doc ID 9837 Rev 3
11/37
Electrical specifications
TDA7416
Table 5.
Symbol
Electrical characteristics (continued)
Parameter Test condition
DC voltage level
Min.
Typ.
Max.
Unit
VDC
-
4.3
4.5
4.7
V
High-pass
fHP1
fHP2
fHP3
fHP4
81
90
99
Hz
Hz
Hz
Hz
122
162
194
135
180
215
148
198
236
fHP
High-pass corner frequency
Subwoofer attenuator
Rin Input impedance
-
-
-
-
-
35
14
-83
0.5
80
-
50
15
-79
1
65
16
-75
1.5
-
k
dB
dB
dB
dB
dB
mV
GMAX Max. gain
AATTN Max. attenuation
ASTEP Step resolution
AMUTE Output mute attenuation
90
-
EE
Attenuation set error
DC steps
2
VDC
Adjacent Attenuation Steps
-
1
5
Subwoofer low-pass
fLP1
fLP2
fLP3
72
80
88
Hz
Hz
Hz
fLP
Low-pass corner frequency
108
144
120
160
132
176
General
BW = 20 Hz - 20 kHz
output muted
-
-
-
3
15
µV
eNO
Output noise
BW = 20 Hz - 20 kHz
all gains = 0dB
µV
µV
15
single-ended inputs
20
-
all gains = 0 dB
103
dB
flat; VO = 2 VRMS
S/N
Signal-to-noise ratio
All EQ-bands at +12dB; Q = 1.0
a-weighted; VO = 2.6VRMS
-
-
87
0.01
0.05
90
-
dB
%
VIN = 1VRMS; all stages 0dB
0.1
0.1
-
d
Distortion
VOUT = 1VRMS;
-
%
Bass & treble = 12dB
SC
Channel separation left/right
-
80
dB
12/37
Doc ID 9837 Rev 3
TDA7416
Description of the audio processor part
4
Description of the audio processor part
4.1
Audio processor features
●
Input multiplexer
–
–
–
–
–
1 pseudo differential CDC stereo input, programmable as single-ended input
3 single-ended stereo inputs
Input gain adjust 0 to 15 dB with 1 dB steps
direct mute
internal offset-cancellation (AutoZero)
●
Mixing stage
–
–
–
–
–
–
–
mixable mix input to Front speaker outputs
Input controls +15 to -79 dB with 1 dB steps
direct mute
Loudness
programmable center frequency and filter slope
19 dB with 1dB steps
selectable flat-mode (constant attenuation)
●
●
Volume
–
–
–
+32 to -79.5 dB with 0.5 dB step resolution
soft-step control with programmable blend times
100 dB range
Equalizer
–
–
–
–
–
seven bands
nd
2
order frequency response
center frequency programmable for lowest and highest filter
programmable quality factor in four steps for each filter
-15 to 15 dB range with 1dB resolution
●
Spectrum analyzer
–
–
–
–
–
seven bandpass filters
nd
2
order frequency response
programmable quality factor for different visual appearance
analog output
controlled by external serial clock
●
●
High-pass
nd
–
–
2
order butterworth high-pass with programmable cut-off frequency
selectable flat-mode
Speaker
–
–
–
4 independent soft-step speaker controls, +15 to -79 dB with 1 dB steps
mute
4 independent programmable mix inputs with 50% mixing ratio
●
Subwoofer
Doc ID 9837 Rev 3
13/37
Description of the audio processor part
TDA7416
–
single-ended monaural output
●
independent soft-step level control +15 to -79 dB with 1 dB steps
Mute functions
–
–
direct mute
digitally controlled Soft-mute with 3 programmable mute-times
●
Effect
Gain effect or high-pass effect fixed external components
–
4.2
Input stages
In the basic configuration one pseudo-differential, three single-ended stereo are available.
Figure 3.
Input stages
6REF
ꢇ
ꢇ
).ꢇꢃ
ꢃ
3TEREO
-AIN 3ELECTOR
ꢈ
0SEUDO
DIFFERENTIAL
).ꢇ
).ꢄ
-UTE
).ꢂ
).ꢆ
)N'AIN
).ꢇꢈ
6REF
6REF
2EAR 3ELECTOR
).ꢇ
).ꢄ
-UTE
).ꢄ
).ꢂ
).ꢆ
).ꢂ
).ꢆ
&ADER
6REF
6REF
6REF
6REF
'!0'03ꢀꢀꢁꢁꢂ
4.2.1
Pseudo-differential stereo input (IN1)
The IN1- input is implemented as a buffered pseudo-differential stereo stage with 100 k
input-impedance at each input pin. This input is also configurable as single-ended stereo
input. The common input-pin, IN1- features a fast charge switch to speed up the charge time
of external capacitors. This switch is released the first time the input-selector data-byte (0) is
accessed.
14/37
Doc ID 9837 Rev 3
TDA7416
Description of the audio processor part
4.2.2
Single-ended stereo inputs
All single-ended inputs have an input impedance of 100 k.
4.3
AutoZero
The AutoZero allows a reduction of the number of pins as well as external components by
canceling any offset generated by or before the In-Gain-stage (Please notice that externally
generated offsets, e.g. generated through the leakage current of the coupling capacitors,
are not canceled).
The auto-zeroing is started every time the DATA-BYTE 0 is selected and needs max. 0.3 ms
for the alignment. To avoid audible clicks the Audioprocessor have to be muted by soft-mute
or hard-mute during this time.
4.3.1
AutoZero remain
In some cases, for example if the µP is executing a refresh cycle of the IIC-Bus-
programming, it is not useful to start a new AutoZero action because no new source is
selected and an undesired mute would appear at the out-puts. For such applications the
TDA7416 could be switched in the AutoZero remain-mode (Bit 6(I1) of the subaddress-
byte). If this bit is set to high, the DATABYTE 0 could be loaded without invoking the
AutoZero and the old adjustment-value remains.
4.4
Loudness
There are four parameters programmable in the loudness stage.
4.4.1
Attenuation
Figure 4 shows the attenuation as a function of frequency at fP = 400 Hz
Figure 4.
Loudness attenuation @ f = 400 Hz
P
ꢀꢍꢀ
ꢃꢉꢍꢀ
ꢃꢇꢀꢍꢀ
D"
ꢃꢇꢉꢍꢀ
ꢃꢄꢀꢍꢀ
ꢃꢄꢉꢍꢀ
ꢇꢀꢍꢀ
ꢇꢀꢀꢍꢀ
ꢇꢍꢀ+
ꢇꢀꢍꢀ+
(Z
'!0'03ꢀꢀꢁꢁꢁ
Doc ID 9837 Rev 3
15/37
Description of the audio processor part
TDA7416
4.4.2
Peak frequency
Figure 5 shows the four possible peak-frequencies at 200, 400, 600 and 800Hz
Figure 5.
Loudness center frequencies @ Attn. = 15 dB
ꢀꢍꢀ
ꢃꢉꢍꢀ
D"
ꢃꢇꢀꢍꢀ
ꢃꢇꢉꢍꢀ
ꢃꢄꢀꢍꢀ
ꢇꢀꢍꢀ
ꢇꢀꢀꢍꢀ
ꢇꢍꢀ+
ꢇꢀꢍꢀ+
(Z
'!0'03ꢀꢀꢁꢁꢄ
4.4.3
Loudness filter order
st
nd
Different shapes of 1 and 2 -order loudness
st
nd
Figure 6.
1 and 2 order loudness @ Attn. = 15 dB, f = 400 Hz
P
ꢀꢍꢀ
ꢃꢉꢍꢀ
D"
ꢃꢇꢀꢍꢀ
ꢃꢇꢉꢍꢀ
ꢃꢄꢀꢍꢀ
ꢇꢀꢍꢀ
ꢇꢀꢀꢍꢀ
ꢇꢍꢀ+
ꢇꢀꢍꢀ+
'!0'03ꢀꢀꢁꢁꢅ
(Z
4.4.4
Flat mode
In flat mode the loudness stage works as a 0dB to -19dB attenuator.
16/37
Doc ID 9837 Rev 3
TDA7416
Description of the audio processor part
4.5
Soft-mute
The digitally controlled soft-mute stage allows muting/demuting the signal with a I2C bus
programmable slope. The mute process can either be activated by the soft-mute pin or by
the I2C bus. This slope is realized in a special S-shaped curve to mute slow in the critical
regions (see Figure 7).
For timing purposes the Bit0 of the I2C bus output register is set to 1 from the start of muting
until the end of de-muting.
Figure 7.
Soft-mute timing
'!0'03ꢀꢀꢁꢄꢀ
1. Please notice that a started Mute-action is always terminated and could not be interrupted by a change of
the mute -signal.
4.6
Soft-step volume and speaker
When the speaker-level is changed audible clicks could appear at the output. The root
cause of those clicks could either be a DC-Offset before the speaker-stage or the sudden
change of the envelope of the audio signal. With the soft-step feature both kinds of clicks
could be reduced to a minimum and are no more audible. The blend-time from one step to
the next is programmable in four steps.
Figure 8.
Soft-step timing for volume
ꢇD"
ꢀꢍꢉD"
33 4IME
ꢃꢀꢍꢉD"
ꢃꢇD"
'!0'03ꢀꢀꢁꢄꢆ
1. For steps more than 0.5dB (Volume) or 1dB (Speaker) the soft-step mode should be deactivated because
it could generate a hard 1dB step during blending.
Doc ID 9837 Rev 3
17/37
Description of the audio processor part
TDA7416
4.7
Equalizer filter
There are three parameters programmable in the equalizer filter:
4.7.1
Attenuation
Figure 9 shows the boost and cut response as a function of frequency at a center frequency
of 1kHz.
Figure 9.
Equalizer filter control @ f
= 1kHz, Q = 1.0
Center
ꢇꢉ
ꢇꢀ
ꢉ
D"
ꢀ
ꢃꢉ
ꢃꢇꢀ
ꢃꢇꢉ
ꢇꢀK
ꢄꢀK
ꢇꢀꢀ
ꢇK
ꢄꢀ
(Z
'!0'03ꢀꢀꢁꢄꢇ
4.7.2
Center frequency
This parameter is programmable in the filter stage 1(62/100Hz), 6(4/6.34kHz) and
7(15/16kHz) only.
Figure 10 shows the center frequencies 62, 156, 396, 1000, 2510, 6340 and 15000 Hz of
the 7 equalizer filters.
Figure 10. Center frequencies @ Gain = 15dB, Q = 1.0
ꢇꢊ
ꢇꢆ
ꢇꢄ
ꢇꢀ
ꢋ
D"
ꢊ
ꢆ
ꢄ
ꢀ
ꢃꢄ
ꢇꢀ
ꢄꢀK
ꢇꢀꢀ
ꢇK
(Z
'!0'03ꢀꢀꢁꢄꢈ
18/37
Doc ID 9837 Rev 3
TDA7416
Description of the audio processor part
4.7.3
Quality Factors
Figure 11 shows the four possible quality factors 1, 1.4, 1.8 and 2.2
Figure 11. Quality factors @ boost = 15dB, f
= 1kHz
Center
ꢇꢊ
ꢇꢆ
ꢇꢄ
ꢇꢀ
ꢋ
D"
ꢊ
ꢆ
ꢄ
ꢀ
ꢃꢄ
ꢄꢀK
ꢇꢀ
ꢇꢀꢀ
ꢇK
(Z
'!0'03ꢀꢀꢁꢄꢃ
4.7.4
Superposition of all equalizer filters
Figure 12 shows the superposition of all equalizer filter curves for different quality factors.
The gain for all filters is +15dB.
Figure 12. Superposition of all EQ bands @ boost = 15dB
ꢇꢋ
ꢇꢊ
ꢇꢆ
ꢇꢄ
ꢇꢀ
D"
ꢋ
ꢊ
ꢆ
ꢄ
ꢀ
ꢄꢀK
ꢇꢀ
ꢇK
ꢇꢀꢀ
(Z
'!0'03ꢀꢀꢁꢄꢉ
Doc ID 9837 Rev 3
19/37
Description of the audio processor part
TDA7416
4.7.5
DC-mode of equalizer band 1 (62/100 Hz)
In this mode, the DC-gain 4dB when set to 15dB boost.
Figure 13. EQ band1, normal- and DC-mode @ boost = 15 dB, f
= 62 Hz
Center
ꢇꢊ
ꢇꢆ
ꢇꢄ
ꢇꢀ
ꢋ
D"
ꢊ
ꢆ
ꢄ
ꢀ
ꢃꢇ
ꢇꢀ+
ꢇ+
ꢇꢀꢀ
(Z
ꢇ
ꢇꢀ
'!0'03ꢀꢀꢁꢄꢂ
1. The center frequency, Q, DC-mode and boost/cut can be set fully independently for each filter.
4.8
Subwoofer application
Figure 14. Subwoofer application with low-pass @ 80/120/160Hz and high-pass @
90/135/180Hz
ꢀꢍꢀ
ꢃꢇꢀꢍꢀ
ꢃꢄꢀꢍꢀ
D"
ꢃꢂꢀꢍꢀ
ꢃꢆꢀꢍꢀ
ꢃꢉꢀꢍꢀ
ꢇꢀꢍꢀ
ꢇꢀꢀꢍꢀ
ꢇꢍꢀ+
ꢇꢀꢍꢀ+
(Z
'!0'03ꢀꢀꢁꢄꢁ
Both filters, the low-pass as well as the high-pass filter, have butterworth characteristic so
that their cut-off frequencies are not equal but shifted by the factor 1.125 to get a flat
frequency response.
20/37
Doc ID 9837 Rev 3
TDA7416
Description of the audio processor part
4.9
Spectrum analyzer
A fully integrated seven band spectrum analyzer with programmable quality factor is
present in the TDA7416 (Figure 15).
The spectrum analyzer consists of seven band pass filters with rectifier and sample
capacitor which stores the maximum peak signal level since the last read cycle. This
peak signal level can be read by a microprocessor at the SAout-pin. To allow easy
interfacing to an analog port of the microprocessor, the output voltage at this pin is
referred to device ground.
The microprocessor starts a read cycle with the negative going clock edge at the SAclk
input. On the following positive clock edges, the peak signal level for the band pass
filters is subsequently switched to SAout. Each analog output data is valid after the time
tSAdel. A reset of the sample capacitors is induced whenever SAclk remains high for the
time tintres. Note that a proper reset requires the clock signal SAclk to be held at high
potential. Figure 15 shows the block diagram and Figure 16 illustrates the read cycle
timing of the spectrum analyzer.
Figure 15. Spectrum analyzer block diagram
'!0'03ꢀꢀꢁꢄꢄ
Figure 16. Timing spectrum analyzer
'!0'03ꢀꢀꢁꢄꢅ
Doc ID 9837 Rev 3
21/37
Description of the audio processor part
TDA7416
4.10
AC coupling
In some applications additional signal manipulations are desired. For this purpose an AC-
coupling is placed before the speaker (fader)-attenuators, which can be activated or
internally shorted by I2C bus. In short condition the input-signal of the speaker-attenuator is
available at the AC-outputs. The input-impedance of this AC-inputs is 50k. In addition there
are Mix inputs available. With this inputs it is possible to mix an external signal to every
speaker with a mixing ratio of 50% (seeFigure 16).
The source of front and rear speaker can be set independently.
As source is choosable:
internal dc coupling (not recommended)
external ac coupling using ACin pins
Figure 17. AC/DC coupling
!#OUT,
37OUT
37IN
!#IN,
6REF
6REF
&RONT &ADER
LEFT CHANNEL
(IGHPASS
FR
FLAT
2EAR&ADER
3UBWOOFER &ADER
,OWPASS
FR
FLAT
RIGHT CHANNEL
2EAR SELECTOR
'!0'03ꢀꢀꢁꢅꢀ
4.11
Front speaker attenuator and mixing
A Mixing-stage is placed after front speaker-attenuator and can be set independently to
mixing-mode. Having a full volume for the Mix-signal the stage offers a wide flexibility to
adapt the mixing levels.
Figure 18. Output selector
6OLUME
&RONT
ꢈꢇꢉꢎꢃꢁꢌD"
ꢇD" STEP
(IGHPASSꢄ
/UT&
ꢇ
6OLUME
ꢈꢇꢉꢎꢃꢁꢌD"
ꢇD" STEP
&ROM -) 8IN
'!0'03ꢀꢀꢁꢅꢆ
22/37
Doc ID 9837 Rev 3
TDA7416
Description of the audio processor part
4.12
Audio processor testing
During the test mode, which can be activated by setting bit I2 of the subaddress byte and D0
of the audioprocessor testing byte, several internal signals are available at the Mix pin.
During this mode the input resistance of 100 kOhm is disconnected from the pin. The
internal signals available are shown in the Data-byte specification.
4.13
Application diagram
Figure 19. Application diagram
).ꢄ, ).ꢂ2 ).ꢂ, ).ꢆ2 ).ꢆ,
! #OUT37 ! #OUT2
ꢇ
ꢂꢂ
ꢂꢄ
ꢂꢇ
ꢂꢀ
ꢄꢌ
ꢄꢋ
ꢄꢁ
ꢄꢊ
ꢄꢉ
ꢄꢆ
ꢄꢂ
! #OUT,
ꢄ
).ꢄ2
).ꢇ,ꢈ
).ꢇ,ꢃ
ꢂ
62%&OUT
ꢆ
ꢉ
ꢈ63ꢇ
ꢃꢌ
!#ꢄ)N,
ꢊ
).ꢇ2ꢈ
-)8
!#ꢄ/UT,
&),/,
ꢁ
ꢋ
/UT,&
/UT,2
ꢌ
ꢇꢀ
ꢇꢇ
3$!
3#, 3!#,+ 3-UTE 3!/UT 37/UT &),/2 !#ꢄ/UT2!#ꢄ)N2 /UT22 /UT2&
'!0'03ꢀꢀꢁꢅꢈ
Doc ID 9837 Rev 3
23/37
I2C bus interface
TDA7416
5
I2C bus interface
5.1
Interface protocol
The interface protocol comprises:
–
–
–
–
–
a start condition (S)
a chip address byte (the LSB bit determines read / write transmission)
a subaddress byte
a sequence of data (N-bytes + acknowledge)
a stop condition (P)
Figure 20. Interface protocol
#()0 !$$2%33
35"!$$2%33
$!4! ꢇꢍꢍꢍ$!4! N
,3"
-3"
,3"
-3"
!:
,3"
!
-3"
3
ꢇ
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0
'!0'03ꢀꢀꢁꢅꢇ
S = Start
R/W = “0” -> Receive-Mode (Chip could be programmed by µP)
“1” -> Transmission-Mode (Data could be received by µP)
ACK = Acknowledge
P = Stop
Max clock speed 500kbits/s
5.1.1
5.1.2
Auto increment
If bit I in the subaddress byte is set to “1”, the auto increment of the subaddress is enabled.
Transmitted data (send mode)
MSB
LSB
SM
X
X
X
X
X
X
X
SM = Soft-mute activated
X = Not Used
The transmitted data is automatically updated after each ACK.
Transmission can be repeated without new chip address.
24/37
Doc ID 9837 Rev 3
TDA7416
I2C bus interface
5.1.3
Reset condition
A power-on-reset is invoked if the supply voltage is below than 3.5V. After that, the following
data is written automatically into the registers of all subaddresses:
MSB
LSB
1
1
1
1
1
1
1
0
The programming after POR is marked bold-face / underlined in the programming tables.
With this programming all the outputs are muted to V
(V
= V /2).
REF
OUT
DD
5.2
Subaddress (receive mode)
Table 6.
1MSB
Subaddress (receive mode)
LSB
Function
I2
I1
I0
A4
A3
A2
A1
A0
Audio processor Testmode
off
0
1
on
AutoZero remain
off
0
1
on
Auto-increment mode
off
0
1
on
Subaddress
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
1
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Source Selector
Loudness
Volume
EQ Filter 1 (62/100Hz)
EQ Filter 2 (157Hz)
EQ Filter 3 (396Hz)
EQ Filter 4 (1kHz)
EQ Filter 5 (2.51kHz)
EQ Filter 6 (4/6.34kHz)
EQ Filter 7 (15/16kHz)
Mixing Programming
Soft-mute
Subwoofer / Spectrum analyzer / High-pass
Configuration Audio processor I
Mixing Level Control
Speaker attenuator LF
Speaker attenuator RF
Speaker attenuator LR
Speaker attenuator RR
Subwoofer attenuator
Testing Audio processor
Doc ID 9837 Rev 3
25/37
I2C bus interface
TDA7416
5.3
Data byte specification
The status after power-on-reset is marked bold-face / underlined in the programming tables.
5.3.1
Input selector (0)
Table 7.
MSB
Input selector (0)
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
Source selector
X
X
X
X
0
0
1
1
0
1
0
1
BUS/PD
AUX
MD
AM/FM
Input gain
0dB
0
0
:
0
0
:
0
0
:
0
1
:
1dB
:
1
1
1
1
1
1
0
1
14dB
15dB
Mute
off
0
1
on
5.3.2
Loudness (1)
Table 8.
MSB
Loudness (1)
LSB
D0
Function
D7
D6
D5
D4
D3
D2
D1
Attenuation
0 dB
0
0
:
0
0
:
0
0
:
0
0
:
0
1
:
-1 dB
:
0
0
:
1
1
:
1
1
:
1
1
:
0
1
:
-14 dB
-15 dB
:
1
:
0
:
0
:
1
:
1
:
-19 dB
not allowed
Center frequency
200Hz
0
0
1
1
0
1
0
1
400Hz
600Hz
800Hz
Loudness order
First order
Second order
0
1
26/37
Doc ID 9837 Rev 3
TDA7416
I2C bus interface
5.3.3
Table 9.
MSB
Volume (2)
Volume (2)
LSB
D0
Function
D7
D6
D5
D4
D3
D2
D1
Gain/Attenuation
(+32.0dB)
(+31.5dB)
:
0
0
:
0
0
:
0
0
:
0
0
:
0
0
:
0
0
:
0
0
:
0
1
:
0
0
0
:
0
0
0
:
0
0
0
:
1
1
1
:
1
1
1
:
0
0
0
:
0
0
1
:
0
1
0
:
+20.0dB
+19.5dB
+19.0dB
:
0
0
0
:
0
1
1
:
1
0
0
:
1
0
0
:
1
0
0
:
1
0
0
:
1
0
0
:
1
0
1
:
+0.5dB
0.0dB
-0.5dB
:
1
1
1
1
X
X
1
1
1
1
1
1
1
1
0
1
-79.0dB
-79.5dB
Note:
It is not recommended to use a gain more than 20dB for system performance reason. In
general, the max. gain should be limited by software to the maximum value, which is needed
for the system.
Doc ID 9837 Rev 3
27/37
I2C bus interface
TDA7416
5.3.4
Equalizer (3,4,5,6,7,8,9)
Table 10. Equalizer (3,4,5,6,7,8,9)
MSB
LSB
D0
Function
D7
D6
D5
D4
D3
D2
D1
Equalizer cut/boost level
0
0
:
0
0
:
0
0
:
0
0
:
0
1
:
-15dB
-14dB
:
0
0
1
1
:
1
1
1
1
:
1
1
1
1
:
1
1
1
1
:
0
1
1
0
:
-1dB
0dB
0dB
+1dB
:
1
1
0
0
0
0
0
0
1
0
+14dB
+15dB
Equalizer Q-Factor
0
0
1
1
0
1
0
1
2.2
1.8
1.4
1.0
Equalizer center frequency (only Subaddresses 3,8,9)
62Hz(addr 3)/4kHz(addr 8)/15kHz(addr 9)
0
1
100Hz(addr 3)/6.24kHz(addr 8)/16kHz(addr 9)
DC mode EQ Band 1 (62/100 Hz, Subaddress. 4!)
0
on
off
1
28/37
Doc ID 9837 Rev 3
TDA7416
I2C bus interface
5.3.5
Mixing programming (10)
Table 11. Mixing programming (10)
MSB
LSB
D0
Function
D7
D6
D5
D4
D3
D2
D1
Mixing
Mute
0
1
enable
Rear Source Selector
0
0
1
1
0
1
0
1
BUS’(PD)
AUX
MD
AM/FM
Mixing Target
Speaker LF off
Speaker LF on
Speaker RF off
Speaker RF on
0
1
0
1
ZeroCross on HPF2
0
X
X
on
off
1
Spectrum Analyzer Detect Point
0
After EQ
1
Before EQ
Doc ID 9837 Rev 3
29/37
I2C bus interface
TDA7416
5.3.6
Soft-mute and HPF2 (11)
Table 12. Soft-mute and HPF2 (11)
MSB
LSB
D0
Function
D7
D6
D5
D4
D3
D2
D1
Soft-mute
On (Mute)
Off
0
1
Soft-mute time
0
0
1
0
1
Mute time = 0.48ms
Mute time = 0.96ms
Mute time = 123ms
X
Secondary high-pass enable
Filter available
0
1
No Filter (Gain)
Secondary high-pass effect (with ZeroCross)
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
1
1
1
1
X
X
X
0
0
1
1
0
0
1
1
X
0
1
0
1
0
1
0
1
0
1
0
1
1
4 dB
6 dB
8 dB
10 dB
12 dB
14 dB
16 dB
18dB
20dB
22dB
0dB
Note:
It is recommended to set D3(Filter available or not) during initial mute.
30/37
Doc ID 9837 Rev 3
TDA7416
I2C bus interface
5.3.7
Subwoofer configuration / spectrum analyzer / high-pass (12)
Table 13. Subwoofer configuration / spectrum analyzer / high-pass (12)
MSB
D7
LSB
D0
Function
D6
D5
D4
D3
D2
D1
Subwoofer Filter
0
0
1
1
0
1
0
1
off
80Hz
120Hz
160Hz
Subwoofer Coupling
AC using SWIn pin
DC
X
X
0
1
Spectrum Analyzer Q-Factor
0
3.5
1.8
1
High-pass enable
Filter off
0
1
Filter on
High-pass cut-off frequency
0
0
1
1
0
1
0
1
90Hz
135Hz
180Hz
225Hz
Doc ID 9837 Rev 3
31/37
I2C bus interface
TDA7416
5.3.8
Configuration audio processor I (13)
Table 14. Configuration audio processor I (13)
MSB
D7
LSB
D0
Function
D6
D5
D4
D3
D2
D1
PD input mode
single ended
0
1
pseudo differential
PD Input Gain
-6 dB
0
1
0 dB
Soft-step volume
0
off
on
1
Soft-step time
320µs
0
0
1
1
0
1
0
1
1.28ms
5.12ms
20.4ms
Loudness
flat
0
1
filter ON
Front AC speaker
AC coupling (ACin)
DC coupling
0
1
Rear effect
0
No effect signal
Equalizing signal
1
32/37
Doc ID 9837 Rev 3
TDA7416
I2C bus interface
5.3.9
Mixer level control (14)
Table 15. Mixer level control (14)
MSB
LSB
D0
Function
D7
D6
D5
D4
D3
D2
D1
Gain/Attenuation
1
0
:
0
:
0
:
1
:
1
:
1
:
1
:
+15dB
:
1
1
0
0
:
0
0
0
0
:
0
0
0
0
:
0
0
0
0
:
0
0
0
0
:
0
0
0
0
:
0
0
0
0
:
1
0
0
1
:
+ 1dB
0dB
0dB
- 1dB
:
0
0
:
0
0
:
0
0
:
0
1
:
1
0
:
1
0
:
1
0
:
1
0
:
-15dB
-16dB
:
0
0
X
1
1
1
0
0
1
0
0
X
1
1
X
1
1
X
1
1
X
0
1
X
-78dB
-79dB
Mute
5.3.10
Speaker and subwoofer level control (15,16,17,18,19)
)
Table 16. Speaker and subwoofer level control (15,16,17,18,19)
MSB
D7
LSB
D0
Function
D6
D5
D4
D3
D2
D1
Gain/Attenuation
0
:
0
:
0
:
1
:
1
:
1
:
1
:
+15dB
:
0
0
0
0
:
0
0
0
0
:
0
0
1
1
:
0
0
0
0
:
0
0
0
0
:
0
0
0
0
:
1
0
0
1
:
+ 1dB
0dB
0dB
- 1dB
:
0
:
1
:
0
:
0
:
0
:
0
:
0
:
-16dB
:
0
:
1
:
1
:
0
:
0
:
0
:
0
:
-32dB
:
1
:
0
:
0
:
0
:
0
:
0
:
0
:
-48dB
:
1
:
0
:
1
:
0
:
0
:
0
:
0
:
-64dB
1
1
0
1
1
X
1
X
1
X
1
X
1
X
-79dB
Mute
Soft-step on/off
0
On
Off
1
Doc ID 9837 Rev 3
33/37
I2C bus interface
TDA7416
5.3.11
Testing audio processor (20)
Table 17. Testing audio processor (20)
MSB
LSB
D0
Function
D7
D6
D5
D4
D3
D2
D1
Audio processor test-mode
0
off
on
1
Test-multiplexer
0
1
0
1
0
1
X
0
1
X
X
X
0
0
0
0
0
0
0
1
1
1
1
1
0
0
0
0
1
1
1
0
0
0
1
1
0
0
1
1
0
0
1
0
0
1
0
1
Spectrum Analyzer Filter
62Hz
Spectrum Analyzer Filter 157Hz
Spectrum Analyzer Filter 396Hz
Spectrum Analyzer Filter
1kHz
Spectrum Analyzer Filter 2.51kHz
Spectrum Analyzer Filter 6.34kHz
Spectrum Analyzer Filter 16kHz
Switch-Ron measurement setup (Level input)
not used
200kHz Oscillator
NB-Hold
internal reference
Clock
0
external
internal
1
AZ function
0
off
on
1
SC-Clock
0
Fast mode
Normal mode
1
Note:
This byte is used for testing or evaluation purposes only and must not set to other values
than “11111110” in the application!
34/37
Doc ID 9837 Rev 3
TDA7416
Package information
6
Package information
In order to meet environmental requirements, ST offers these devices in different grades of
®
®
ECOPACK packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
®
ECOPACK is an ST trademark.
Figure 21. TQFP44 mechanical data and package dimensions
MM
INCH
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Doc ID 9837 Rev 3
35/37
Revision history
TDA7416
7
Revision history
Table 18. Document revision history
Date
Revision
Changes
20-Sep-2003
1
Initial release.
Document reformatted.
30-Jun-2011
24-Sep-2013
2
3
Updated order code in the Table 1: Device summary on page 1.
Updated disclaimer.
36/37
Doc ID 9837 Rev 3
TDA7416
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Doc ID 9837 Rev 3
37/37
相关型号：
E-TDA7454
Quad BTL output, high efficiency (class SB) power amplifier with clip detection, stand-by and mute inputs
STMICROELECTR
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