This TDA7379 Product is have built in Preamp and the output is Double-Bridge Type which is plug and plays ready to use. Note: You need to replace from 47uf capacitor to 100uf connected to SVR PIN #6 You can double the output power by using two IC joint together to supply the load of speaker impedance, Its not adding wattage but it is stable for Low impedance like 2 Ohm load for great performance of Subwoofer 2 cone parallel. Parallel Bridge type to Double the power and can hold 2 Ohms Load, Also can sustain a 20 Hz frequency for better Bass Output. In this video shows how to build the TDA7379 Double-Bridge Type series without a PCB, A homemade project amplifier for 8 inches Subwooferįor Advance Circuit I already Test. You can create as yours as a home-made project like in a video below. The Pin1,2 is for 1CH speaker no need Capacitor, also the 14 and 15 pin is for the 2CH speaker.įor me this is the best selection among 3, The connection is 3CH output which delivers the better sound output, User must make a filtered 2.1 signal preamp which separates the low pass filter(bass sound) and connect to IN BRIDGE, take a look at schematic above. The Pin input must 4,5, is connected to each other and 11,12 is connected also, In this connection, the output to the speaker is no need to connect to common ground. If you want to double the power out for big speaker, Yes it can be but the output becomes 2CH output. Note: The output decoupling capacitors(C9, C10, C11, C12) could be reduced to 1000μF if the 2Ω operation is not required. The 4 Pin 1,2,14 and 15 output power is also separated from each other and the common line after the speaker is connected to ground (negative power supply). You can select the number 1- Quad Stereo. The design of the schematic diagram above is the input signal Pin number 4,5,11,12 is separated each.

There are (3) three selection want to use this IC- 4CH, 2CH, 2.1CH speaker output connection. The TDA7379 or TDA7377 or TDA7375 is compatible each other because it is same on PINOUT and parts, You can use as replacement any of these 3, You can see the diagram below shows. Schematic diagram of TDA737x series is same

To Power-up the ic must connect the ST_BY to Vs+ supply. Highest power performances with an extremely reduced component count.

The exclusive fully complementary structure of the output stage and the internally fixed gain guarantee the The TDA737x is a new technology class AB audio processor amplifier able to work either is DUAL BRIDGE or QUAD SINGLE ENDED configuration. MINIMUM EXTERNAL COMPONENTS COUNT -NO BOOTSTRAP CAPACITORS -NO BOUCHEROT CELLS -INTERNALLY FIXED GAIN (26dB BTL) -ST-BY FUNCTION (CMOS COMPATIBLE)-NO AUDIBLE POP DURING ST-BY OPERATIONS-SOFT SHORT AT TURN-ON -THERMAL SHUTDOWN PROXIMITY -OUTPUT AC/DC SHORT CIRCUIT -OVERRATING CHIP TEMPERATURE WITH SOFT THERMAL LIMITER

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