TDA7418TR STMicroelectronics, TDA7418TR Datasheet
TDA7418TR
Specifications of TDA7418TR
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TDA7418TR Summary of contents
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... Second order frequency response – Center frequency programmable in 4 steps (500 kHz / 1.5 kHz / 2.5 kHz) Table 1. Device summary Order code TDA7418 TDA7418TR November 2008 – Q programmable 0.5/0.75/1.0/1.25 – -15 to 15dB range with 1dB resolution ■ Treble – Second order frequency response – ...
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Contents Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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TDA7418 4.10 Subwoofer attenuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of tables List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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TDA7418 List of figures Figure 1. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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Block diagram 1 Block diagram Figure 1. Block diagram 6/29 TDA7418 ...
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TDA7418 2 Pin description 2.1 Connection diagram Figure 2. Pin out 2.2 Pin list Table 2. Pin list No. Pin Name 1 SE3L 2 SE3R 3 SE2L 4 SE2R 5 SE1L 6 SE1R 7 DIFFL 8 DIFFG 9 DIFFR 10 ...
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Electrical specification 3 Electrical specification 3.1 Absolute maximum ratings Table 3. Absolute maximum ratings Symbol Supply voltage for Operating temperature range op T Storage temperature stg V ESD protection (Human Body Model) ESD V ESD protection ...
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TDA7418 Table 4. Electrical characteristics (continued 8 ° amb Symbol Parameter e Output noise @ speaker outputs No Loudness control A Max. attenuation MAX A Step resolution STEP (1) f Peak frequency ...
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Electrical specification Table 4. Electrical characteristics (continued 8 ° amb Symbol Parameter (1) Q Quality factor BASS C Control range RANGE A Step resolution STEP DC Bass-DC-gain GAIN Middle control C Control ...
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TDA7418 Table 4. Electrical characteristics (continued 8 ° amb Symbol Parameter Audio outputs V Clipping level CL R Output impedance OUT R Output load resistance L C Output load capacitor L V ...
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Description of the audioprocessor 4 Description of the audioprocessor 4.1 Input stages In the basic configuration, one stereo pseudo differential (programmable as single-ended input) and three single-ended stereo inputs are available. Pseudo differential stereo input (PD/SE4) The PD input is ...
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TDA7418 selected and an undesired mute would appear at the outputs. For such applications, it can be switched in the AutoZero-Remain-Mode (Bit 6 of the subaddress-byte). If this bit is set to high, the AutoZero will not be invoked and ...
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Description of the audioprocessor 4.3.3 Low and high frequency boost Figure 6 shows the different Loudness shapes in low & high frequency boost. Figure 6. Loudness attenuation 2.4kHz 4.3.4 Flat mode In flat mode the loudness stage works ...
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TDA7418 4.5 SoftStep volume When the volume-level is changed audible clicks could appear at the output. The root cause of those clicks could either be a DC-Offset before the volume-stage or the sudden change of the envelope of the audio ...
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Description of the audioprocessor 4.6.2 Center frequency Figure 10 shows the four possible center frequencies 60, 80, 100 and 200Hz. Figure 10. Bass center frequencies @ Gain = 15dB 4.6.3 Quality factors Figure 11 shows the four ...
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TDA7418 4.7 Middle There are three parameters programmable in the middle stage: 4.7.1 Attenuation Figure 13 shows the attenuation as a function of frequency at a center frequency of 1kHz. Figure 13. Middle control @ f 4.7.2 Center frequency Figure ...
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Description of the audioprocessor 4.8 Treble There are two parameters programmable in the treble stage: 4.8.1 Attenuation Figure 16 shows the attenuation as a function of frequency at a center frequency of 17.5kHz. Figure 16. Treble control @ f 4.8.2 ...
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TDA7418 4.11 MUX output It provides a mono signal output (before tone filters) at Mute/MUX pin, used for external level meter / spectrum analyzer. The mute pin can be configured as MUX output (I as MUX output, the output voltage ...
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I C bus specification bus specification 5.1 Interface protocol The interface protocol comprises: – a start condition (S) – a chip address byte (the LSB determines read/write transmission) – a subaddress byte – a sequence ...
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TDA7418 5.2 Subaddress (receive mode) Table 6. Subaddress (receive mode) MSB LSB Testing Mode Off On Auto Zero Remain Off On Auto Increment Mode Off On ...
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I C bus specification 5.3 Data byte specification Table 7. Input selector /gain (0) MSB Table 8. Loudness (1) MSB 22/29 ...
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TDA7418 Table 9. Volume / speaker attenuation (2,7,8,9,10,11) MSB Table 10. Treble filter (3) MSB ...
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I C bus specification Table 11. Middle filter (4) MSB 24/ ...
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TDA7418 Table 12. Bass filter (5) MSB Table 13. Middle / bass Fc select (6) MSB ...
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I C bus specification Table 14. Soft mute and soft step time (12) MSB Table 15. Testing audio processor (13) MSB 26/ ...
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TDA7418 6 Package information In order to meet environmental requirements, ST (also) offers these devices in ECOPACK packages. ECOPACK is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related ...
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Revision history 7 Revision history Table 16. Document revision history Date 15-Feb-2007 23-Oct-2008 03-Nov-2008 28/29 Revision 1 Initial release. 2 Updated Table 6: Subaddress (receive mode) on page 3 Corrected Table 6: Subaddress (receive mode) on page TDA7418 Changes 21. ...
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... TDA7418 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...