TDA7415CBTR STMicroelectronics, TDA7415CBTR Datasheet
TDA7415CBTR
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TDA7415CBTR Summary of contents
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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 ■ ...
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Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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TDA7415CB 5.4 Spectrum analyzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of tables List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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TDA7415CB List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Block diagram 1 Block diagram Figure 1. Block diagram 6/50 Doc ID 14100 Rev 3 TDA7415CB ...
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TDA7415CB 2 Pin description 2.1 ESD: All pins are protected against ESD according to the MIL883 standard. 2.2 Thermal data Table 2. Thermal data Symbol R Thermal resistance junction-to-pins th j-pins 2.3 Pin assignment Figure 2. Pin connection (top view) ...
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Pin description 2.4 Pin function Table 3. Pin description Direction PIN ( ...
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TDA7415CB Table 3. Pin description (continued) Direction PIN ( ...
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Deatailed features 3 Deatailed features The TDA7415CB is composed of four major building blocks. - The IN-section, the spectrum- analyzer, the main signal processing path and the OUT-section; Individually featuring: IN section ● Three independent signal-paths (front, rear and auxiliary) ...
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TDA7415CB 4 Electrical specification 4.1 Supply Table 4. Supply Symbol V Supply voltage CC Supply current (line V P driver) I Total supply current total SVRR Ripple rejection @ 1 kHz Audio processor (all filters flat) 4.2 Absolute maximum ratings ...
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Electrical specification Table 6. Input section (continued) Symbol Parameter Common mode rejection ratio CMRR MD Mono differential input (MD) S Input separation IN G Min. input gain IN MIN G Max. input gain IN MAX G Gain-adjust step resolution STEP ...
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TDA7415CB Table 6. Input section (continued) Symbol Parameter t Read-out cycle repeat time repeat t Internal reset time intres t Reset pulse width SAres 1. All differential inputs or differential configurations have -3 dB input gain. 4.3.2 Main signal processing ...
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Electrical specification Table 7. Main signal processing path (continued) Symbol Parameter (1) Q Quality factor BASS DC Bass DC-gain GAIN MID control G Gain control range RANGE A Step resolution STEP (2) f Center frequency C (2) Q Quality factor ...
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TDA7415CB 4.3.3 Output section otherwise specified Table 8. Output section Symbol Parameter R Input impedance in V Input Clipping Level CL ATT Mute Attenuation MUTE Soft-mute completion time, t ...
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Electrical specification Table 8. Output section (continued) Symbol Parameter V Max. output level; LD-outputs LD,max R Output load resistance L C Output load capacitance L R Output impedance OUT V DC voltage level DC 1. All differential inputs or differential ...
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TDA7415CB 4.3.5 Bus and control inputs Table 10. Bus and control inputs 2 (I C/SPI, spectrum analyzer, direct-mute, offset detector) Symbol Parameter V Input low voltage IL V Input high voltage IH V Input threshold voltage TH V Input threshold ...
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Description of the audio processor 5 Description of the audio processor As can be seen from the block diagram in three building blocks. - The INPUT-Section, the MAIN-SIGNAL-PROCESSING-path and the OUTPUT-Section. This chapter will give more insight into the different ...
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TDA7415CB The CD-Changer- and Auxiliary/Navigation-inputs are quasi-differential inputs, where the 'out-of-phase' or ground signals of both channels share one common input. The Minidisk- input (MD) may be reconfigured for a true mono differential input as required by many phone units. ...
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Description of the audio processor 2. Center frequency: 15dB Figure 5. Bass center frequencies; gain= 15dB, Q= 1.0 3. Quality factor: Figure 6. Bass filter quality factors; f 20/50 Figure 5 shows all the selectable center frequencies at a gain ...
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TDA7415CB 4. DC-mode: Figure 7 mode the DC-gain is increased by 4.4dB. In addition the programmed center frequencies and quality factors are decreased by 25%, which realizes alternative frequency responses. Figure 7. Bass DC-mode frequency responses; gain= 15dB, Q= 1.5 ...
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Description of the audio processor 2. Center frequency: 15dB. Figure 9. Mid center frequencies; gain= 15dB, Q= 1.0 3. Quality Factor: 15dB. Figure 10. Mid filter quality factors; f 22/50 Figure 9 shows the four selectable center frequencies at a ...
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TDA7415CB 5.2.3 Treble filter There are two parameters programmable in the treble-filter stage. 1. Control Range: center frequency. Figure 11. Treble control range Center frequency: 15dB Figure 12. Treble center frequencies; gain= 15dB, Q= 1.0 Figure 11 shows ...
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Description of the audio processor 5.2.4 Room EQ filter There are three parameters programmable in the room-EQ stage. 1. Control range: center frequency. The filter has intentional non-uniform attenuation steps. These are 1dB, 2dB, 3dB, 4dB, 5.5dB, 7dB and 9dB. ...
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TDA7415CB 3. Quality factor: 15dB Figure 15. Room-EQ notch filter quality factors; f Figure 15 shows the two selectable filter quality factors at a gain of Doc ID 14100 Rev 3 Description of the audio processor = 200Hz, attenuation= 7dB. ...
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Description of the audio processor 5.3 Output path As the Input-Section, the Output-Section of the TDA7415CB incorporates also three independent stereo signal paths, where each can connect to two out of four AC-coupled, single-ended inputs and to some dedicated signals ...
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TDA7415CB not needed or available, the line-driver output stages may be programmed for lower gain, still delivering 2.75V For programming of the Output-section, see the programming chapter Hereafter, the different circuits composing the Output-section will be presented. 5.3.1 High pass ...
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Description of the audio processor Remark: 5.3.3 Line driver output stage (presenting the reference concept) In order to adapt to two different supply-voltages for the dual-supply option, while maintaining the highest possible output swing when only a single supply is ...
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TDA7415CB six soft-mute pins low (hardware-mute assessing the corresponding programming bits (software-mute). For the In-section, a soft-mute is always stereo for each of the three signal-paths and the bus-triggered mute exactly corresponds to the pin-triggered mute, with the ...
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Description of the audio processor The spectrum analyzer's input signal is either the mono-sum of the stereo MUXA-output or alternatively a signal input at the SAin-pin. In order to have some influence on the visual behavior in a given application ...
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TDA7415CB 5.5 DC offset detector Using the DC offset detection circuit (figure 22) an offset voltage difference between the audio power amplifier and theTDA7415CB's PA-outputs can be detected, preventing serious damage to the loudspeakers. The circuit compares whether the signal ...
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Digital interface 6 Digital interface The TDA7415CB digital interface supports two different protocols: SPI and C-mode the SEL-pin has to be tied to the system supply by means of a 68k -resistor. If the voltage at the ...
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TDA7415CB Table 12. Interface in SPI -mode Symbol f Serial input clock frequency (SCL) SCLK T Serial data setup time su T Serial data hold time hld T Serial clock high time width wh T Serial clock low time width ...
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Digital interface Reset condition A power-on reset (POR) is generated whenever the supply voltage falls below 4.5V. After that, the following data is written automatically into all sub-address registers: MSB 1 1 The programming after POR is marked bold face ...
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TDA7415CB 7 Programming Table 13. Subaddress allocation (receive mode) MSB ...
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Programming 7.1 Data byte specification The status after power-on reset is marked bold face / underlined in the programming tables. Table 14. Main signal path input (addr. 00) MSB ...
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TDA7415CB Table 16. Main signal path, bass-filter (addr. 02) MSB ...
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Programming Table 18. Main signal path, treble-filter (addr. 04) MSB ...
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TDA7415CB Table 20. Input section, signal paths A-C (addr. 06-08) MSB ...
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Programming Table 22. Output section, signal path 0 (addr. 10) MSB ...
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TDA7415CB Table 24. Output section, high-pass filters (addr. 12) MSB ...
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Programming Table 25. Output section, volume 0L, 0R, 1L, 1R, 2L, 2R (addr. 13-16, 18, 19) MSB ...
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TDA7415CB Table 26. Output section, subwoofer low-pass filter (addr. 17) MSB ...
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Programming Table 28. DC-detector and other output section settings (addr. 21) MSB ...
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TDA7415CB Table 29. Soft-mute and soft-step fader time (addr. 22) MSB ...
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Programming Table 31. Testing * (addr. 31) MSB ...
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TDA7415CB 8 Application information Figure 27. Typical application connections diagram Figure 27 shows a proposal for a typical application. - However, the figure only represents one possible interconnection scheme with other devices (The shaded blocks could represent a complex digital ...
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Package information 9 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. ...
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TDA7415CB 10 Revision history Table 32. Document revision history Date 26-Oct-2007 24-Nov-2008 24-Jun-2009 Revision 1 Initial release. 2 Updated the Table 8: Output section on page Updated Figure 28: LQFP64 mechanical data and package 3 dimensions on page Doc ID ...
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