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E-TDA7416 |ETDA7416ST,STN/a10000avaiCar Radio signal Processor with spectrum analyzer
E-TDA7416 |ETDA7416STMN/a10000avaiCar Radio signal Processor with spectrum analyzer


E-TDA7416 ,Car Radio signal Processor with spectrum analyzerBlock diagram . . . . 6Figure 2. Pins connection (top view) . . 7Figure 3. Input stage ..
E-TDA7416 ,Car Radio signal Processor with spectrum analyzerfeatures . . . . . 134.2 Input stages . . . . . . . 144.2.1 Pseudo-differential stereo i ..
E-TDA7560 ,Hi-fi quad BTL output power amplifier with HDS/offset detection, stand-by and muteBlock diagram . . . . 5Figure 2. Pins connection (top view) . . 5Figure 3. Standard te ..
E-TDA7560 ,Hi-fi quad BTL output power amplifier with HDS/offset detection, stand-by and muteFeatures■ Superior output power capability:–4 x 51 W/4  max.–4 x 45 W/4  EIAJ'!0'03'!0'03 ..
E-TDA7560 ,Hi-fi quad BTL output power amplifier with HDS/offset detection, stand-by and muteElectrical characteristics . . . . 6Table 5. Document revision history . 16Doc ID 6886 ..
E-TDA7566 ,Intelligent quad BTL output with full I2C diagnosticsBlock diagram . . . . 5Figure 2. Application and test circuit . . 5Figure 3. Pin conne ..
FAN3506 ,PC SMPS Secondary Side Control ICFeatures Description• Few External Components The FAN3506 is complete housekeeping circuitry for u ..
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FAN3800MLP24X , Mono / Stereo Audio Amplifier with Microphone Pre-Amplifier and EMU Interface
FAN3800MLP24X , Mono / Stereo Audio Amplifier with Microphone Pre-Amplifier and EMU Interface
FAN3989MLP8X , USB/Charger Detection Device with Load Switch
FAN3989MLP8X , USB/Charger Detection Device with Load Switch


E-TDA7416
Car Radio signal Processor with spectrum analyzer
September 2013 Doc ID 9837 Rev 3 1/37
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 Direct mute and soft mute 4 independent speaker outputs Soft-step speaker control Subwoofer output with soft step 7 band spectrum analyzer Full mixing capability HPF2 with ZeroCrossI2 C bus interface
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.
Table 1. Device summary
Contents TDA7416
2/37 Doc ID 9837 Rev 3
Contents Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pins connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.1 Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.3 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Description of the audio processor part . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Audio processor features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2 Input stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2.1 Pseudo-differential stereo input (IN1) . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2.2 Single-ended stereo inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 AutoZero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.1 AutoZero remain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4 Loudness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4.1 Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.4.2 Peak frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4.3 Loudness filter order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4.4 Flat mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.5 Soft-mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.6 Soft-step volume and speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.7 Equalizer filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.7.1 Attenuation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.7.2 Center frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.7.3 Quality Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.7.4 Superposition of all equalizer filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.7.5 DC-mode of equalizer band 1 (62/100 Hz) . . . . . . . . . . . . . . . . . . . . . . 20
4.8 Subwoofer application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.9 Spectrum analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
TDA7416 Contents
Doc ID 9837 Rev 3 3/37
4.10 AC coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.11 Front speaker attenuator and mixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.12 Audio processor testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.13 Application diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 I2C bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1 Interface protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.1 Auto increment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.2 Transmitted data (send mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.1.3 Reset condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.2 Subaddress (receive mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.3 Data byte specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.3.1 Input selector (0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.3.2 Loudness (1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.3.3 Volume (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.3.4 Equalizer (3,4,5,6,7,8,9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.3.5 Mixing programming (10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.3.6 Soft-mute and HPF2 (11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.3.7 Subwoofer configuration / spectrum analyzer / high-pass (12) . . . . . . . 31
5.3.8 Configuration audio processor I (13) . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.3.9 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 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
List of tables TDA7416
4/37 Doc ID 9837 Rev 3
List of tables

Table 1. Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3. Thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 4. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 5. Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 6. Subaddress (receive mode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 7. Input selector (0). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 8. Loudness (1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 9. Volume (2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 10. Equalizer (3,4,5,6,7,8,9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 11. Mixing programming (10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 12. Soft-mute and HPF2 (11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 13. Subwoofer configuration / spectrum analyzer / high-pass (12). . . . . . . . . . . . . . . . . . . . . . 31
Table 14. Configuration audio processor I (13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 15. Mixer level control (14) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 16. Speaker and subwoofer level control (15,16,17,18,19) . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 17. Testing audio processor (20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 18. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
TDA7416 List of figures
Doc ID 9837 Rev 3 5/37
List of figures

Figure 1. Block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 2. Pins connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 3. Input stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 4. Loudness attenuation @ fP = 400 Hz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 5. Loudness center frequencies @ Attn. = 15 dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 6. 1st and 2nd order loudness @ Attn. = 15 dB, fP = 400 Hz. . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 7. Soft-mute timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 8. Soft-step timing for volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 9. 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
Block diagram TDA7416 Doc ID 9837 Rev 3
1 Block diagram
Figure 1. Block diagram
TDA7416 Pins connection
Doc ID 9837 Rev 3 7/37
2 Pins connection
Figure 2. Pins connection (top view)
Electrical specifications TDA7416
8/37 Doc ID 9837 Rev 3
3 Electrical specifications
3.1 Supply


3.2 Thermal data


3.3 Absolute maximum ratings


3.4 ESD

All pins are protected against ESD according to the MIL883 standard.
Table 2. Supply
Table 3. Thermal data
Table 4. Absolute maximum ratings
TDA7416 Electrical specifications
Doc ID 9837 Rev 3 9/37
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. Electrical characteristics
Electrical specifications TDA7416
10/37 Doc ID 9837 Rev 3
Table 5. Electrical characteristics (continued)
TDA7416 Electrical specifications
Doc ID 9837 Rev 3 11/37
Table 5. Electrical characteristics (continued)
Electrical specifications TDA7416
12/37 Doc ID 9837 Rev 3
Table 5. Electrical characteristics (continued)
TDA7416 Description of the audio processor part
Doc ID 9837 Rev 3 13/37 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 bandsnd 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 filtersnd order frequency response programmable quality factor for different visual appearance analog output controlled by external serial clock High-passnd 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
Description of the audio processor part TDA7416 Doc ID 9837 Rev 3 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
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.
TDA7416 Description of the audio processor part 15/37
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 @ fP = 400 Hz
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
4.4.3 Loudness filter order

Different shapes of 1st and 2nd -order loudness
Figure 6. 1st and 2nd order loudness @ Attn. = 15 dB, f = 400 Hz
TDA7416 Description of the audio processor part
Doc ID 9837 Rev 3 17/37
4.5 Soft-mute

The digitally controlled soft-mute stage allows muting/demuting the signal with a I2 C bus
programmable slope. The mute process can either be activated by the soft-mute pin or by
the I2 C bus. This slope is realized in a special S-shaped curve to mute slow in the critical
regions (see Figure7).
For timing purposes the Bit0 of the I2 C bus output register is set to 1 from the start of muting
until the end of de-muting.
Figure 7. Soft-mute timing
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
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 @ fCenter = 1kHz, Q = 1.0
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
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, fCenter = 1kHz
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
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