TEA2025 BOOKLY | Alldatasheet

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Technical content

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 +Vs OUT.1 BOOT.1 GND GND FEEDBACK IN.1 (+) GND (sub)SVR IN.2 (+) FEEDBACK GND GND BOOT.2 OUT.2 BRIDGEBLOCK DIAGRAM 9 10 11 12 13 14 15 2356 4 THERMAL PROTECTION START CIRCUIT DECOUPLING 10k Ω 10k Ω 50 Ω 50 Ω 50 Ω 5k Ω

TEA2025 2.5W * 2 Audio amplifier www.bookly.com 2 QW-R107-003,A ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL VALUE UNIT Supply Voltage V S 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,V CC =9V,Stereo,Unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Supply Voltage V S 3 12 V Quiescent Current IQ 40 50 mA Quiescent output voltage V O 4.5 V Voltage gain A V Stereo 43 45 47 dB Bridge 49 51 53 Voltage gain difference ΔA V +-1 dB Input impedance Ri 30 k Ω f=1kHz;d=10% Stereo per channel V CC =9V;R L =4 Ω R L =8 Ω 1.7 2.3 1.3 Output Power P O V CC =6V;R L =4 Ω R L =8 Ω 0.7 1 0.6 W V CC =3V;R L =4 Ω 0.1 Bridge V CC =9V;R L =8 Ω 4.7 V CC =6V;R L =4 Ω 2.8 Distortion d V CC =9V;R L =4 Ω f=1kHz;P O =250mW Stereo 0.3 1.5 % Bridge 0.5 Supply voltage Rejection SVR R G =0;A V =45dB Vripple=150mVRMS Fripple=100Hz 40 46 dB Input noise Voltage Vn A V =200 Bandwidth: 20Hz to 20kHz R G =0 R G =10k Ω 1.5 µV Cross-Talk C.T. R G =10k Ω ; f=1kHz;R L =4 Ω P O =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 P0(W) d(%) Distortion versus output power 0.1 P0(W) d(%) Distortion versus output power Vcc=6V RL=40 Ω Vcc=6V RL=8 Ω 10 100 1k 10k 100k 0.1 d(%) f(Hz) Vcc=9V RL=9 Ω Po=1.5W Distortion versus output Frequency 4 8 120 Po(W) Vcc(V) f=1kHz d=10% RL=4 Ω Output power/versus supply voltage

TEA2025 2.5W * 2 Audio amplifier www.bookly.com 4 APPLICATION CIRCUIT 1610 8 4,5,9,12,13 100 µF 0.15 µF 100 µF 0.15 µF RL 100 µF 100 µF 100 µF 0.22 µF 100 µF Vin Vcc 1610 8 4,5,9,12,13 100 µF 0.15 µF 470 µF 100 µF 100 µF 0.22 µF 100 µF Vin Vcc 100 µF 0.22 µF Vin 2 470 µF 0.15 µF 100 µF OUT1 OUT2 RL RL Fig. 5 Bridge Application Fig.6 Stereo Application SCHEMATIC DIAGRAM 678 1110 OUT 1 OUT 2 I1+ I1- I2+ I2- +Vs GND