运放TEA2025

TEA2025 2.5W * 2 Audio amplifier www.bookly.com 1 STEREO AUDIO AMPLIFIER DESCRIPTION The BM TEA2025 is a monolithic integrated audio amplifier in a 16-pin plastic dual in line package. It is designed for portable cassette players and radios. FEATURES *Working Voltage down to 3V *Few External components *High Channel isolation *Voltage gain up to 45dB(Adjustable with external resistor) *Soft clipping *Internal Thermal protection DIP-16 PIN CONFIGURATIONS 1 2 3 4 16 15 14 13 12 11 10 98 7 6 5 +Vs OUT.1 BOOT.1 GND GND FEEDBACK IN.1 (+) GND (sub)SVR IN.2 (+) FEEDBACK GND GND BOOT.2 OUT.2 BRIDGE BLOCK DIAGRAM 7 8 9 10 11 12 13 14 15 16 1 2356 4 THERMAL PROTECTION START CIRCUIT DECOUPLING 10kW 10kW 50W 50W 50W 5kW TEA2025 2.5W * 2 Audio amplifier www.bookly.com 2 QW-R107-003,A ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL VALUE UNIT Supply Voltage VS 15 V Output Peak Current IO 1.5 A Junction Temperature Tj 150 °C Storage Temperature Tstg -40 ~ +150 °C ELECTRICAL CHARACTERISTICS (Ta=25°C,VCC=9V,Stereo,Unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Supply Voltage VS 3 12 V Quiescent Current IQ 40 50 mA Quiescent output voltage VO 4.5 V Voltage gain AV Stereo 43 45 47 dB Bridge 49 51 53 Voltage gain difference DAV +-1 dB Input impedance Ri 30 kW f=1kHz;d=10% Stereo per channel VCC=9V;RL=4W RL=8W 1.7 2.3 1.3 Output Power PO VCC=6V;RL=4W RL=8W 0.7 1 0.6 W VCC=3V;RL=4W 0.1 Bridge VCC=9V;RL=8W 4.7 VCC=6V;RL=4W 2.8 Distortion d VCC=9V;RL=4W f=1kHz;PO=250mW Stereo 0.3 1.5 % Bridge 0.5 Supply voltage Rejection SVR RG=0;AV=45dB Vripple=150mVRMS Fripple=100Hz 40 46 dB Input noise Voltage Vn AV=200 Bandwidth: 20Hz to 20kHz RG=0 RG=10kW 1.5 3 3 6 mV Cross-Talk C.T. RG=10kW; f=1kHz;RL=4W PO=1W 40 55 dB TEA2025 2.5W * 2 Audio amplifier www.bookly.com 3 THERMAL RESISTANCE Rth(j-c):Junction to case thermal resistance 15°C/W Rth(j-a):Junction to ambient thermal resistance 60°C/W TYPICAL PERFORMANCE CHARACTERISTICS 1 10 0 0.2 0.4 0.6 0.8 1.0 1.2 P0(W) d(%) Distortion versus output power 0.1 1 0 0.2 0.4 0.6 0.8 1.0 1.2 P0(W) d(%) Distortion versus output power Vcc=6V RL=40W Vcc=6V RL=8W 10 100 1k 10k 100k 0.1 1 10 d(%) f(Hz) Vcc=9V RL=9W Po=1.5W Distortion versus output Frequency 4 8 120 0 2 4 6 8 Po(W) Vcc(V) f=1kHz d=10% RL=4W Output power/versus supply voltage TEA2025 2.5W * 2 Audio amplifier www.bookly.com 4 APPLICATION CIRCUIT 1610 11 7 6 1 8 4,5,9,12,13 14 15 3 2 100 mF 0.15mF 100mF 0.15mF RL 100 mF 100mF 100 mF 0.22 mF 100 mF Vin Vcc 1610 11 7 6 8 4,5,9,12,13 14 15 3 2 100 mF 0.15 mF 470 mF 100 mF 100 mF 0.22 mF 100 mF Vin 1 Vcc 100 mF 0.22 mF Vin 2 470 mF 0.15 mF 100 mF OUT1 OUT2 RL RL Fig. 5 Bridge Application Fig.6 Stereo Application SCHEMATIC DIAGRAM 16 3 678 2 4 5 15 12 13 14 1110 9 1 OUT 1 OUT 2 I1+ I1- I2+ I2- +Vs GND