TDA7468D STMicroelectronics, TDA7468D Datasheet
TDA7468D
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TDA7468D Summary of contents
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... INDEPENDENT MUTE FUNCTION ALL FUNCTION ARE PROGRAMMABLE VIA SERIAL BUS EXTERNALLY ADJUSTABLE SURROUND 2 DESCRIPTION The TDA7468D is a volume tone (bass and treble) balance (Left/Right) processor for quality audio Figure 2. PIN CONNECTION (Top view) April 2010 TWO BANDS DIGITALLY CONTROLLED Figure 1. Package Table 1 ...
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TDA7468 Figure 3. BLOCK DIAGRAM 2/23 ...
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Table 2. ABSOLUTE MAXIMUM RATINGS Symbol V Operating Supply Voltage S T Operating Ambient Temperature amb T Storage Temperature Range stg Table 3. THERMAL DATA Symbol R Thermal Resistance Junction-pins th j-pin Table 4. QUICK REFERENCE DATA Symbol V Supply ...
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TDA7468 ELECTRICAL CHARACTERISTICS (refer to the test circuit T amb specified) Symbol Parameter SUPPLY V Supply Voltage S I Supply Current S SVR Ripple Rejection INPUT STAGE R Input Resistance IN V Clipping Level CL S Input Separation IN G ...
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ELECTRICAL CHARACTERISTICS (continua) (refer to the test circuit T amb specified) Symbol Parameter BASS CONTROL Gb Control Range B Step Resolution STEP R Internal Feedback Resistance B BASS ALC CONTROL R Attack Time Resistor 1 attack1 R Attack Time Resistor ...
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TDA7468 Figure 4. TEST CIRCUIT 6/23 ...
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... The very high resolution allows the implementation of systems free from any noisy acoustical effect. The TDA7468D audioprocessor provides 2 bands tones control. 3.1 Bass, Stages The Bass cell has an internal resistor R Several filter types can be implemented, connecting external components to the Bass IN and OUT pins ...
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... TDA7468 BUS INTERFACE Data transmission from microprocessor to the TDA7468D and vice versa takes place through the 2 wires BUS interface, consisting of the two lines SDA and SCL (pull-up resistors to positive supply voltage must be connected). 4.1 Data Validity As shown in fig. 6, the data on the SDA line must be stable during the high period of the clock. The HIGH and LOW state of the data line can only change when the clock signal on the SCL line is LOW ...
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... D96AU420 ACK = Acknowledge S = Start Stop A = Address B = Auto Increment 6 EXAMPLES 6.1 No Incremental Bus The TDA7468D receives a start condition, the correct chip address, a subaddress with the (no in- cremental bus), N-data (all these data concern the subaddress selected), a stop condition. CHIP ADDRESS MSB LSB ...
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TDA7468 7 DATA BYTES Address = (HEX) 10001000. Table 6. FUNCTION SELECTION: First byte (subaddress) MSB ...
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Table 8. INPUT GAIN SELECTION MSB GAIN = 0 to 30dB Table 9. SURROUND MSB ...
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TDA7468 Table 10. VOLUME MSB VOLUME = 0 to-87dB Table 11. VOLUME setting 1 Target Volume (dB) Volume1 1dB step (dB) ...
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Table 11. VOLUME setting 1 (continua) Target Volume (dB) Volume1 1dB step (dB) -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 -35 -36 -37 -38 -39 -40 -41 -42 ...
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TDA7468 Table 11. VOLUME setting 1 (continua) -58 -59 -60 -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 -71 -72 -73 -74 -75 -76 -77 -78 -79 -80 -81 -82 -83 -84 -85 -86 -87 Table 12. VOLUME ...
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Table 12. VOLUME setting 2 (continua) Target Volume (dB) Volume1 1dB step (dB -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 -32 -33 -34 ...
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TDA7468 Table 12. VOLUME setting 2 (continua) Target Volume (dB) Volume1 1dB step (dB) -48 -49 -50 -51 -52 -53 -54 -55 -56 -57 -58 -59 -60 -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 -71 -72 -73 ...
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Table 13. TREBLE & BASS SELECTION MSB ...
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TDA7468 Table 15. BASS ALC MSB Figure 9. BASS ALC : Threshold curve RMS Supply Voltage : 9.0V Frequency : 60Hz Bassfilter : ...
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IC1 Figure 11. PINS: IN1_L, IN1_R, IN2_L, IN2_R, IN3_L, IN3_R, IN4_L, IN4 _R, IS_L, IS_R, MIC V S 50K GND Vref Figure 12. PINS: OUT_L, OUT_R, IMUX_L, MUX_R V S 10Ω GND Figure 13. PINS: TREBLE_L, TREBLE_R V S ...
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TDA7468 9 PACKAGE MECHANICAL DATA In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK nitions and product status are available at: www.st.com. ECOPACK 20/23 ® ...
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Figure 19. SO28 Mechanical Data & Package Dimensions mm DIM. MIN. TYP. MAX. A 2.65 a1 0.1 0.3 b 0.35 0.49 b1 0.23 0.32 C 0.5 c1 45° (typ.) D 17.7 18 10.65 e 1.27 e3 16.51 F ...
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TDA7468 10 REVISION HISTORY Table 16. Revision History Date Revision January 2004 June 2004 March 2006 30-Apr-2010 22/23 1 First Issue in EDOCS DMS 2 Changed the Style-sheet in compliance to the new “Corporate Technical Pubblications Design Guide” 3 Updated ...
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... 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. ...