UTCTEA2025A

UTC TEA2025A LINEAR INTEGRATED CIRCUIT 2.3W DUAL AUDIO POWER AMPLIFIER DESCRIPTION The UTC TEA2025A is a monolithic integrated circuit, consisting of a 2-channel power amplifier. It is suitable for stereo and bridge amplifier application of radio cassette tape recorders. FEATURES *High output power Stereo: Po=2.3W (Typ) at Vcc=9V, RL=4Ω Bridge: Po=4.7W (Typ) at Vcc=9V, RL=8Ω *Low switching distortion at high frequency *Small shock noise at the time of power on/off dur to a built-in muting circuit *Good ripple rejection due to a built-in ripple filter *Good channel separation *Soft tone at the time of output straiten *Closed loop voltage gain fixed 45dB (Bridge: 51dB) but availability with external resistor added *Minimum number of external parts required *Easy to design radiator fin DIP-12H BLOCK DIAGRAM UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R107-012,A UTC TEA2025A LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Power Dissipation Operating Temperature Storage Temperature SYMBOL VS Pd Topr Tstg VALUE 15 4* -20 ~ +70 -40 ~ +150 UNIT V W °C °C ELECTRICAL CHARACTERISTICS(Ta=25°C,VCC=9V, Rg=600Ω, Unless otherwise specified) PARAMETER Operating Supply Voltage Quiescent Current Closed Loop Voltage Gain Channel Balance Output Power SYMBOL Vcc Icc Av CB PO TEST CONDITIONS Vi=0, Stereo Stereo, Vi=-45dBm Bridge, Vi=-45dBm Stereo Stereo, RL=4Ω , THD=10% Stereo, RL=8Ω , THD=10% Bridge, RL=8Ω , THD=10% Stereo, Po=250mW, RL=4Ω Bridge, Po=250mW, R...