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INTEGRATED CIRCUITS DATA SHEET TDA3843 Sound-IF circuit for TV AM-sound standard L and L' Product specification File under Integrated Circuits, IC02 March 1991 Philips Semiconductors Product specification Sound-IF circuit for TV AM-sound standard L and L' GENERAL DESCRIPTION The TDA3843 performs the AM-sound demodulation for the L- and L'-standard. Features · 5 to 8 V power supply and an alternative 12 V power supply · Low power consumption (200 mW) at 5 V supply voltage · New AC-coupled wideband IF-amplifier (high dynamic ranges, less intermodulation) · In-phase wideband AM demodulator without external reference circuit · Reduced THD figures even for low AF frequencies (typical 1%) · Stabilizer circuit for ripple rejection and constant output signals · All pins are ESD protected QUICK REFERENCE DATA PARAMETER Supply voltage (pin 14) Supply voltage (pin 11) Supply current Minimum IF input (RMS value) IF control range AF output signal (RMS value) Signal plus weighted-noise to weighted-noise ratio (CCIR 468-3) PACKAGE OUTLINE 16-lead DIL; plastic (opposite bent leads) (SOT38WBE); SOT38-1; 1996 December 4. S + W/W 50 56 - VP1 VP2 I11, 14-13 V1-16 GV V6-13 SYMBOL MIN. 4.5 10.8 - - 60 - 5 12 40 70 63 550 TYP. TDA3843 MAX. 8.8 13.2 48 100 - - V V UNIT mA µV dB mV dB March 1991 2 Philips Semiconductors Product specification Sound-IF circuit for TV AM-sound standard L and L' TDA3843 Fig.1 Block diagram. March 1991 3 Philips Semiconductors Product specification Sound-IF circuit for TV AM-sound standard L and L' TDA3843 March 1991 4 Fig.2 Input/output loading diagram. Philips Semiconductors Product specification Sound-IF circuit for TV AM-sound standard L and L' RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) PARAMETER Supply voltage (pin 14) Supply voltage (pin 11) Operating ambient temperature range Storage temperature range Total power dissipation at VP2 VP1 VP2 Tamb Tstg Ptot SYMBOL 4.5 10.8 0 -25 - MIN. TDA3843 MAX. 8.8 13.2 + 70 + 125 635 V V UNIT °C °C mW CHARACTERISTICS VP1 = 5 V (see note 1); Tamb = 25 °C; unless otherwise specified PARAMETER Current consumption IF amplifier Input resistance Input capacitance Minimum IF input signal (RMS value) Maximum IF input signal (RMS value) Gain control range IF bandwidth DC potential AM demodulator AF output signal (RMS value) AF bandwidth Total harmonic distortion Signal plus weighted-noise to weighted-noise ratio (CCIR 468-3) DC potential Output resistance emitter follower with 0.5 mA bias current note 7 note 6 S+W/W V6-13 50 - 56 1.8 - - dB V -3 dB, note 5 note 4 V6-13 V6-13 THD 440 0.02 - 550 - 1 660 >100 2 mV kHz % -3 dB V1/16-3 note 3 V1-16 70 60 50 - 100 63 70 1.7 - - - - mV dB MHz V note 2 V1-16 - 70 100 µV R1-16 C1-16 - - 2 2.5 - - k pF CONDITIONS SYMBOL I11 - MIN. TYP. 40 MAX. 48 UNIT mA R6 ±I6 -I6 - - - 200 - - - 0.3 1 mA mA Allowable AC output current (peak-to-peak value) Allowable DC output current March 1991 5 Philips