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 ? 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.