TDA7297 Audio Ampilifier Board

tda7297 15 +15 watts audio board image tda7297 solder side image

RAC15-2C amplifier with onboard IC TDA7892 is a wide voltage input stereo monolithic power amplifier that can operate from 9 to 18 volts and provides about 15+15 watts of output power. It can be connected to wide varity of load impidance ranging from 4ohms to 8ohms. All these features makes this a versatile amplifier to be connected to wide range of products; computers, mobile phones, other audio products where a descent amplification is required.
RAC15-2C audio amplifier is plug and play type of amplifier. One just needs to connect it to voltage adapter ranging from 9 to 18 volts. Audio input jack accepts strandard 3.5mm jack. Mobile or any other audio source can be connected to the amplifier via this audio jack. Volume control is also provioded to adjust the volume of the amplifier. Stereo balance can be achived via rotating BAL knob. This module can be connected to small three inch speakers for hi fidility sound.

tda7297 amplifier board connections image

Know Your RACKEYS RAC15-2C audio amplifier board

  1. Balance Control.
  2. Volume Control.
  3. DC input socket (9 to 18 volts).
  4. Left Speaker Output.
  5. Right Speaker Output.
  6. AUX input for connecting Mobile, computer, etc).
tda7297 AUX input image

Connecting to audio source
AUX 3.5mm standard socket is provided onboard this audio amplifier to facilitate the connection of the amplifier to audio source like mobile, computer, etc via standard audio cable having 3.5mm jack.

  1. Amplifier should be switched off and its volume should be set to minimum prior to plugin or plugout the AUX cable .
  2. Insert one end of 3.5mm AUX jack into the AUX socket of this amplifier.
  3. Insert the other end of the AUX jack into the AUX socket of your audio source; mobile, computer, etc.
  4. Make sure that your source's signal are not cliping. Its recomended to open the volume of your source to 75%
  5. Switch on the amplifier and slowly rotate the volume knob to adjust the volume. Avoid to high volume level that leads to clipping.
  6. Balance knob can be used to set the balance between the right and left speakers.
tda7297 power image

Powering from standard DC power adapter (9v to 18v)

  1. Audio amplifier board can be powerwed by any wall power adapter that can provide 9v to 18v DC.
  2. Amplifier can prive aproximately 15 + 15 watts of power into 8 ohms speaker with 16 volts at power terminals.
  3. Relation between speaker impedence and DC voltage can be found from table I.

Specifications: Table I

tda7297 specifications image