TDA8551

INTEGRATED CIRCUITS DATA SHEET TDA8551 1 W BTL audio amplifier with digital volume control Product specification Supersedes data of 1997 May 07 1998 Feb 23 NXP Semiconductors 1 W BTL audio amplifier with digital volume control Product specification TDA8551 FEATURES One pin digital volume control Volume setting with UP/DOWN pulses Flexibility in use Few external components Low saturation voltage of output stage Standby mode controlled by CMOS compatible levels Low standby current No switch-on/switch-off plops High supply voltage ripple rejection Protected against electrostatic discharge Outputs short circuit safe to ground, VP and across the load Thermally protected. GENERAL DESCRIPTION The TDA8551; TDA8551T is a one channel 1 W Bridge-Tied Load (BTL) audio power amplifier capable of delivering 1 W output power to an 8 Ω load at THD = 10% using a 5 V power supply. The circuit contains a BTL power amplifier, a digital volume control and standby/mute logic. The TDA8551T comes in an 8 pin SO package and the TDA8551 in a 8 pin DIP package. APPLICATIONS Portable consumer products Personal computers Telephony. QUICK REFERENCE DATA SYMBOL VP Iq Istb Po Gv nvol THD SVRR PARAMETER supply voltage quiescent current standby current output power voltage gain number of volume steps total harmonic distortion supply voltage ripple rejection CONDITIONS VP = 5 V THD = 10%; RL = 8 Ω; VP = 5 V Po = 0.5 W MIN. 2.7 − − 1 −60 − − 48 TYP. 5 6 − 1.4 − 64 0.15...