tda6812-5 ETC-unknow, tda6812-5 Datasheet
tda6812-5
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tda6812-5 Summary of contents
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TV-Stereo Processor Preliminary Data Features High quality stereo signal processing High S/N ratio 2 C Bus I Clipping detector and clock generator NICAM or AM sound inputs Volume control Universal audio interface for DOLBY, EQUALIZER, SURROUND SOUND features Multiplex 3-SCART ...
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Control Bus interface with listen/talk function b) Control of entire audio processing c) Reading of clipping detector d) Control of identification-signal decoder e) Reading of identification-signal decoder f) Test modes Pin Functions Pin No. Function ...
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Pin Functions (cont’d) Pin No. Function 25 AF-input, volume control, left 26 AF-output, equalizer, right 27 AF-output, equalizer, left 28 Cut-off frequency treble, left 29 Cut-off frequency treble, right 30 AF-output, headphones, right 31 AF-output, headphones, left ...
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Block Diagram Semiconductor Group 116 TDA 6812-5 ...
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Circuit Description Signal Section The dematrixing and switching of multichannel TV-sound signals are performed in the matrix and switch section by the dual-carrier method. Crosstalk compensation is on the sound 1 input. The compensation stage has a range of be ...
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Control Section All functions are controlled currently valid data are stored in a latch block. The telegram structure is as follows: start condition - chip address - any number of bytes - stop condition The following conditions ...
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Subaddress Bytes Volume precontrol Volume left speaker Volume right speaker Volume headphones Treble/bass Switching byte I Switching byte II Switching byte III Switching byte IV Crosstalk compensation Setting Bytes a) Volume Precontrol Maximum volume Max. – 1 Min ...
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Headphones Volume Maximum volume Max. – 1 Max. – 15 Max. – 31 Power ON T0, T1 and T2 are test bits and must be set to 0 for normal operation. d) Crosstalk Compensation Matrix (sound 1) Maximum gain ...
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Switching Bytes I, II, III Switching Byte I SCART-output Switching byte II Headphones output Switching byte III Loudspeaker output MSB • • • thru L3 left output, R0 thru 3 ...
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Switching Byte IV MSB • • • MPX0 MPX1 QSt BE MPX0 MPX1 MPX-Period Settings specially recommended for crystal operation ...
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Absolute Maximum Ratings all voltages relatives to A Parameter Supply voltage Max. DC-voltage Max. DC-voltage Max. DC-voltage Max. DC-voltage Max. DC-voltage Max. DC-voltage Max. DC-voltage Max. DC-voltage Max. DC-voltage Max. DC-voltage Max. DC-voltage ...
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Absolute Maximum Ratings (cont’ all voltages relatives to A Parameter ESD-voltage Junction temperature Storage temperature Thermal resistance system ambient Operating Range Supply voltage Ambient temperature Input frequency range Semiconductor Group V SS Symbol ...
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Characterstics AF-reference level 250 mVrms unless otherwise defined accordance with test circuit Bus preset: I Start - 84 - 01,3F - 02,3F ...
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Characteristics (cont’d) Parameter Symbol Gain V 13-3 Gain V 14-3 V Max. gain 22-3 Max. gain V 21-3 V Max. gain 27-3 V Max. gain 26-3 Max. gain V 31-3 V Max. gain 30-3 V Max. gain 22-1 Max. gain ...
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Characteristics (cont’d) Parameter Symbol Same values apply for pins 7 thru 12 V Min. gain 31-1 V Min. gain 30-3 Same values apply for pins 7 thru 12 V Flutter and wow 21-22 Flutter and wow V 30-31 V Increment ...
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Characteristics (cont’d) Parameter Symbol Bass boost V 31-1 V Bass boost 21-3 V Bass cutoff 31-1 Bass cutoff V 21-3 V Increment bass 21 Increment bass Treble boost 22-1 Treble boost V 21-3 V Treble cut-off 22-1 ...
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Characteristics (cont’d) Parameter Symbol Crosstalk attenuation IN/OW Muting 1-22 Muting 3-21 Muting 1-27 Muting 3-26 Muting 1-31 Muting 3-30 Muting 3-14 Muting 1-13 Same values apply for pins 7 thru 12; V Max. input voltage * 3 V Max. input ...
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Characteristics (cont’d) Parameter Symbol Distortion factor THD 22 Distortion factor THD 21 THD Distortion factor 22 THD Distortion factor 21 THD Distortion factor 22 THD Distortion factor 21 Same values apply for pins 7 thru 12; THD Distortion factor 14 ...
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Characteristics (cont’d) Parameter Symbol Unweighted SNR S/N22 Unweighted SNR S/N21 Unweighted SNR S/N22 Unweighted SNR S/N21 V Noise voltage N22 V Noise voltage N21 Unweighted SNR S/N31 Unweighted SNR S/N30 Unweighted SNR S/N31 Unweighted SNR S/N30 V Noise voltage N31 ...
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Characteristics (cont’d) Parameter Symbol DC transition bit V DC transition 21 1 bit V DC transition 22 1 bit DC transition bit V DC transition 22 1 bit V DC transition 21 1 bit ...
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Characteristics (cont’d) Parameter Symbol Identification-Signal Decoder Gain V filter op-amp 6 V Max. input voltage 6 V VCO voltage PLL 39 VCO voltage PLL VCO voltage PLL 39 V VCO voltage PLL 39 V VCO voltage PLL ...
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Characteristics (cont’d) Parameter Symbol Mono threshold V 36 Mono threshold – Mono threshold 38 V Mono threshold – 38 Detection response t det t Detection response det Switching V H-IL threshold f -input REF V Switching H-IH ...
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Characteristics (cont’d) Parameter Symbol Shift register clock SCL f Frequency SCL t H-pulse width H t L-pulse width L Start t Setup time SUSTA t Hold time HDSTA Stop Setup time t SUSTO t Bus free BUF Data change Setup ...
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Test Circuit 1 Semiconductor Group 136 TDA 6812-5 ...
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Test Circuit 2 Semiconductor Group 137 TDA 6812-5 ...
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Test Circuit 3 Semiconductor Group 138 TDA 6812-5 ...
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Test Circuit 4 Semiconductor Group 139 TDA 6812-5 ...
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Application Circuit 1 Semiconductor Group 140 TDA 6812-5 ...
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Application Circuit 2 Semiconductor Group 141 TDA 6812-5 ...
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TV-Soundconcept with Dolby-Surround-Option Semiconductor Group 142 TDA 6812-5 ...
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Semiconductor Group 143 TDA 6812-5 ...
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C Bus Timing Diagram I t Setup time (start) SUSTA t Hold time (start) HDSTA t H-pulse width (clock L-pulse width (clock Setup time (data change) SUDAT t Hold time (data change) HDDAT t Setup ...