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| 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=4 Bridge: Po=4.7W (Typ) at Vcc=9V, RL=8 *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=25C,VCC=9V, Rg=600, 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=4, THD=10% Stereo, RL=8, THD=10% Bridge, RL=8, THD=10% Stereo, Po=250mW, RL=4 Bridge, Po=250mW, RL=4 Stereo, Rg=0, Vr=150mV, f=100Hz Stereo, Rg=0 Stereo, Rg=10K Stereo, Rg=10K, Vo=0dBm MIN TYP 9 40 45 51 0 2.3 1.3 4.7 0.3 0.5 30 46 0.3 0.5 55 MAX 11 55 47 53 +1 UNIT V mA dB dB dB W W W % % k dB mV mV dB 43 49 -1 1.7 Total Harmonic Distortion Input Resistance Rijpple Rejection Output Noise Voltage Cross-Talk THD Ri RR VNO CT 1.5 21 40 1 2 40 UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R107-012,A UTC TEA2025A LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUIT: Stereo Amplifier APPLICATION CIRCUIT: Bridge Amplifier UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R107-012,A UTC TEA2025A LINEAR INTEGRATED CIRCUIT VOLTAGE GAIN ADJUSTMENT 1. Stereo application 2. Bridge application UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R107-012,A UTC TEA2025A LINEAR INTEGRATED CIRCUIT OUTPUT PORWER-INPUT VOLTAGE PREQUENCY RESPONSE UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R107-012,A UTC TEA2025A LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 6 QW-R107-012,A UTC TEA2025A LINEAR INTEGRATED CIRCUIT QUIESCENT CIRCUIT CURRENT SUPPLY VOLTAGE QUIESCENT CIRCUIT CURRENT AMBIENT TEMPERATURE UTC UNISONIC TECHNOLOGIES CO., LTD. 7 QW-R107-012,A |
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