Philips TDA2555 free download

File name Tda2555.pdf

INTEGRATED CIRCUITS DATA SHEET TDA2555 TDA2557 Dual TV sound demodulator circuits Product specification File under Integrated Circuits, IC02 March 1986 Philips Semiconductors Product specification Dual TV sound demodulator circuits GENERAL DESCRIPTION TDA2555 TDA2557 The circuits incorporate two FM demodulator systems to perform the demodulator functions required in a dual sound carrier TV system for demodulating the sound carriers. The difference between TDA2555 and TDA2557 is the number of stages of the limiting amplifier. · Eight (TDA2555) or five (TDA2557) stage limiting amplifier · Quadrature demodulator for FM detection · De-emphasis stage · Output amplifier · Mute function for each FM demodulator QUICK REFERENCE DATA Supply voltage (pins 13 and 15) Supply current (pins 13 and 15) AF output voltage (pins 2 and 8) Total harmonic distortion (note 1) Signal to weighted noise ratio PACKAGE OUTLINE 18-lead DIL; plastic (SOT102); SOT102-1; 1996 November 19. VP IP Vo(rms) THD (S + N)/N typ. typ. typ. < typ. 12 24,5 600 0,1 70 V mA mV % dB March 1986 2 Philips Semiconductors Product specification Dual TV sound demodulator circuits TDA2555 TDA2557 Fig.1 Block diagram. TDA2555 with 8-stage limiting amplifier; TDA2557 with 5-stage limiting amplifier. March 1986 3 Philips Semiconductors Product specification Dual TV sound demodulator circuits RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) Supply voltage (pins 13 and 15) Total power dissipation Storage temperature range Operating ambient temperature VP Ptot Tstg Tamb max. max. TDA2555 TDA2557 13,2 400 V mW °C °C -40 to + 150 0 to + 70 March 1986 4 Philips Semiconductors Product specification Dual TV sound demodulator circuits CHARACTERISTICS VP = V13, 15-14 = 12 V; Tamb = 25 °C; fIF1 = 5,5 MHz; fIF2 = 5,74 MHz; fm1 = 1 kHz; f =± 30 kHz; Vi(rms) = 5 mV for TDA2555; Vi(rms) = 10 mV for TDA2557; see test circuit Fig.3, voltages with respect to ground (pin 14), unless otherwise specified. PARAMETER Total current consumption LIMITING AMPLIFIER Maximum input voltage Input voltage for start of limiting (3 dB AF signal reduction) TDA2555 TDA2557 DC voltage (input limiting amplifier) pins 11, 12, 16, 17 to 14 DC voltage (feedback loop) FM DEMODULATOR IF reference signal voltage DC voltage AF output voltage Difference of output signals V3-4(rms) V6-7(rms) V3,4,6,7-14 V2-14(rms) V 2 ­ 14 --------------V 8 ­ 14 THD AMS - - 450 - 200 3,1 600 ± 0,1 - - 750 ± 0,5 V10,18-14 - 2,0 - Vi - 2,0 - V11-12(rms) V16-17(rms) V11-12(rms) V16-17(rms) - - 50 250 100 500 V11-12(rms) V16-17(rms) - 200 - SYMBOL I13, 15 18 MIN. 24,5 TYP. 30 MAX. TDA2555 TDA2557 UNIT mA mV µV µV V V mV V mV dB Total harmonic distortion at outputs AF1 and AF2 (note 1) A.M. suppression at outputs AF1 and AF2, fFM = 70 Hz; f = ± 50 kHz; fAM = 1 kHz; m = 0,3 Signal to noise ratio at outputs AF1 and AF2 (CCIR weighted, quasi peak) Residual IF-signal without de-emphasis Ripple rejection at