2.1 Power Amplifier using TDA7377
This Power Amplifier using or based on IC TDA7377, that the TDA7377 IC has 4 channel input and 4 channel output. For using 2.1 Power Amplifier on two channel is bridge to one output so the output is 3 channel , one channel using for bass or subwoofer speaker. And the other 2 channel is using for mid and treble speaker. see circuit diagram below
2.1 Power Amplifier using Part Value :
Resistor 1/4W 5%
R1, R3, 2.7K – Red, Violet, Red, Gold
R2 3.3K – Orange, Orange, Red, Gold
R4, R11, R13 47K – Yellow, Violet, Orange, Gold
R5, R12, R15, R19, R20 8.2K – Gray, Red, Red, Gold
R6, R7 1k – Brown, Black, Red, Gold
R8 68K – Blue, Gray, Orange, Gold
R9, R10, R14, R18, R23, R26 10K – Brown, Black, Orange, Gold
R16, R17 22K – Red, Red, Orange, Gold
R21, R23 1.8K – Brown, Gray, Red, Gold
R22, R24 6.8K – Blue, Gray, Red, Gold
P1, P3 47K or 50K – Dual Potentiometer logarithmic
P2 100k – Dual Potentiometer
P4 47K or 50K – Single Potentiometer logarithmic
Capacitors electrolytic
C1 6800µF
C3, C4,C14, C19, C30 10µF
C5, C7, C8, C9, C10 4.7µF
C6, C28, C31 100µF
C22 0.47µF or Polyester
C33, C34 1000µF
Capacitors Polyester and ceramic
C2, C15, C20, C32 100nF (104) – Ceramic or Polyester
C11, C12 100pF (101) – Ceramic
C13 220nF (224) – Polyester
C16, C26, C27 100nF (104) – Polyester
C17, C18 6.8nF (682) – Polyester
C21, C23 4,7nF (472) – Polyester
C24, C25 33nF (333) – Polyester
C29 1nF (102) – Polyester
Semiconductors
B1 Bridge Rectifier FBU8K or equivalent 200V / 2A
IC1 7812 – positive voltage regulator 12 Volts
IC2, IC3 LM4558N or equivalent – Dual Operational Amplifier
IC4 TDA7377
LED1 Red Led 5mm
Buy these components parts, go to Allchips.
Buy these components parts, go to Allchips.
2.1 Power Amplifier using TDA7377 Test
How to bought this board
ReplyDeleteyo cant bought this board, but you can make it from the circuit
Deleteyo cant bought this board, but you can make it from the circuit
DeleteMerhaba Wahyu
ReplyDeleteTda7377 2+1 devresini bende yaptim ama sadece kirmizi led yaniyor. Yardimci olurmusun
What are the speaker specifications for this..wattage and ohms?
ReplyDeleteHow to use st1_1 and st2_2 connection
ReplyDeletevery helpful
ReplyDeleteso good
ReplyDelete