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TEA6323 Dataheets PDF



Part Number TEA6323
Manufacturers NXP
Logo NXP
Description Sound fader control circuit
Datasheet TEA6323 DatasheetTEA6323 Datasheet (PDF)

INTEGRATED CIRCUITS DATA SHEET TEA6323T Sound fader control circuit Preliminary specification File under Integrated Circuits, IC01 1995 Dec 20 Philips Semiconductors Preliminary specification Sound fader control circuit FEATURES • Source selector for three stereo and one differential stereo input for remote sources • The differential stereo input works optional as a fourth stereo input and the common mode pin can be used as well as an additional mono input • Interface for noise reduction circ.

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INTEGRATED CIRCUITS DATA SHEET TEA6323T Sound fader control circuit Preliminary specification File under Integrated Circuits, IC01 1995 Dec 20 Philips Semiconductors Preliminary specification Sound fader control circuit FEATURES • Source selector for three stereo and one differential stereo input for remote sources • The differential stereo input works optional as a fourth stereo input and the common mode pin can be used as well as an additional mono input • Interface for noise reduction circuits • Interface for external equalizer • Volume, balance and fader control • Output at volume I for external booster • Special loudness characteristic automatically controlled in combination with volume setting • Bass control with equalizer filters • Treble control • Mute control at audio signal zero crossing • Logic output to read mute status • Fast mute control via I2C-bus QUICK REFERENCE DATA SYMBOL VCC ICC Vo(rms) Gv Gstep(vol) Gbass Gtreble Gstep(treble) (S+N)/N RR100 CMRR PARAMETER supply voltage supply current maximum output voltage level voltage gain step resolution (volume) bass control treble control step resolution (treble) signal-plus-noise to noise ratio VO = 2.0 V; Gv = 0 dB; unweighted ripple rejection common mode rejection ratio differential stereo input Vr(rms) < 200 mV; f = 100 Hz; Gv = 0 dB VCC = 8.5 V CONDITIONS − −86 − −18 −12 − − − 43 MIN. 7.5 VCC = 8.5 V; THD ≤ 0.1% − TYP. 8.5 26 2000 − 1 − − 1.5 105 75 53 • Fast mute control via pin • I2C-bus control for all functions TEA6323T • Power supply with internal power-on reset • Power down indication. GENERAL DESCRIPTION The sound fader control circuit TEA6323T is an I2C-bus controlled stereo preamplifier for car radio hi-fi sound applications. MAX. 9.5 − − +20 − +18 +12 − − − − V UNIT mA mV dB dB dB dB dB dB dB dB ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA6323T VSO40 DESCRIPTION plastic very small outline package; 40 leads VERSION SOT158-1 1995 Dec 20 2 2.2 kΩ handbook, full pagewidth 1995 Dec 20 8.2 nF 20 kΩ CKVL 220 nF 100 µF VCC 13 Vref 26 38 3 4 24 47 µF 9 x 220 nF input left source 20 18 16 14 common mode input/ input mono source 17 27 input right source CKIN 25 23 21 28 220 nF CKVL 8.2 nF 20 kΩ 30 SOURCE SELECTOR POWER SUPPLY 11 GND BLOCK DIAGRAM Philips Semiconductors Sound fader control circuit OVL 2.2 kΩ 3.4 kΩ 270 nF 150 nF 270 nF 5.6 nF +5V 4.7 kΩ MUTE 10 9 8 7 2 MUTE FUNCTION ZERO CROSS DETECTOR VOLUME I +20 to −31 dB LOUDNESS LEFT BASS LEFT ± 18 dB TREBLE LEFT ± 12 dB VOLUME II 0 to −55 dB BALANCE FADER REAR 5 12 output left VOLUME II 0 to −55 dB BALANCE FADER FRONT 6 40 LOGIC I2C-BUS RECEIVER 1 SCL SDA 3 VOLUME I +20 to −31 dB LOUDNESS RIGHT BASS RIGHT ± 18 dB TREBLE RIGHT ± 12 dB VOLUME II 0 to −55 dB BALANCE FADER FRONT 35 output right VOLUME II 0 to −55 dB BALANCE FADER REAR 36 TEA6323T 29 31 32 33 34 MHA258 150 nF 270 nF 270 nF 3.4 kΩ 5.6 nF Preliminary specification TEA6323T OVR Fig.1 Block diagram. Philips Semiconductors Preliminary specification Sound fader control circuit PINNING SYMBOL SDA MUTE DGND AGND OUTLR OUTLF TL B2L B1L OVL IVL ILL QSL IDL i.c. ICL COM IBL i.c. IAL IAR i.c. IBR CAP ICR Vref IDR QSR ILR IVR OVR B1R B2R TR OUTRF OUTRR n.c. VCC n.c. SCL 1995 Dec 20 PIN 1 2 3 4 5 6 7 8 9 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 35 36 37 38 39 40 serial data input/output mute control input and output digital ground analog ground output left rear output left front treble control capacitor left channel or input from an external equalizer bass control left channel or output to an external equalizer bass control, left channel output volume I, left channel input volume I, left control part input loudness, left control part output source selector, left channel input D left source COMM, common mode rejection adjust, centre position input C left source common mode input / mono source input input B left source COML, common mode rejection adjust, left position input A differential source left input A differential source right COMR, common mode rejection adjust, right position input B right source electronic filtering for supply input C right source reference voltage (0.5VCC) input D right source output source selector right channel input loudness right channel input volume I, right control part output volume I, right channel bass control right channel bass control right channel or output to an external equalizer DESCRIPTION TEA6323T treble control capacitor right channel or input from an external equalizer output right front output right rear not connected supply voltage not connected serial clock input 4 Philips Semiconductors Preliminary specification Sound fader control circuit TEA6323T The volume control function is split into two sections: volume I control block and volume II control block. handbook, halfpage SDA MUTE DGND AGND OUTLR OUTLF TL B2L B1L 1 2 3 4 5 6 7 8 9 40 SCL 39 n.c. 38 VCC 37 n.c. 36 OUTRR 35 OUTRF 34 TR 33 B2R 32 B1R 31 OVR The c.


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