Description
Description:TPA3221 is a high-power class D amplifier that can achieve high efficiency in full power, idle and standby states. The device uses closed-loop feedback with a bandwidth of up to 100kHz to provide low distortion in the o frequency band and achieve excellent quality. The device operates with AD or low idle current HEAD (high-efficiency AD mode) modulation and can provide 2 x 105W power for a 4 ohm load or 1 x 208W power for a 2 ohm load.The main filter electrolytic capacitor adopts the imported famous brand Erkang with a capacity of 2200UF/35V*4 to ensure strong and continuous power support.High-precision chip resistors are selected for the resistors to ensure a good signal-to-noise ratio of the whole machine.Adopt special netic ring inductor for o to ensure the sound is clear and powerful.
Features:
1. Use original TPA32212. High-precision chip resistors are selected for the resistors to ensure a good signal-to-noise ratio of the whole machine.3. Adopt special magnetic ring inductor for audio to ensure the sound is clear and powerful.4. The PCB adopts 1.6mm thick double-sided board, 2.0 oz copper thickness, and full tin spraying process to ensure good passing performance of large and small currents.
Basic parameters:
Wide 7-V to 30-V Supply Voltage OperationStereo (2 x BTL) and Mono (1 x PBTL) OperationOutput Power at 10% THD+N105-W Stereo into 4 ohm in BTL Configuration112-W Stereo into 3 ohm in BTL Configuration208-W Mono into 2 ohm in PBTL ConfigurationOutput Power at 1% THD+N88-W Stereo into 4 ohm in BTL Configuration100-W Stereo into 3 ohm in BTL Configuration170-W Mono into 2 ohm in PBTL ConfigurationClosed-Loop Feedback DesignSignal Bandwidth up to 100 kHz for High-Frequency Content From HD Sources0.02% THD+N at 1 W into 4 ohm60-dB PSRR (BTL, No Input Signal)less than 75-?V Output Noise (A-Weighted)more than 108-dB SNR (A-Weighted)AD or HEAD Modulation SchemesLow-Power Operating ModesStandby Modes: Mute and less than 1 mA ShutdownLow Idle-Current HEAD Modulation SchemeSingle-Channel BTL OperationMultiple Input Options to Simplify Pre-Amp DesignDifferential or Single-Ended Analog InputsSelectable Gains: 18 dB, 24 dB, 30 dB, 34 dBIntegrated Protection: Undervoltage, Overvoltage, Cycle-by-cycle Current Limit, Short Circuit, Clipping Detection, Overtemperature Warning andShutdown, and DC Speaker ProtectionMaterial: ABSSize: 103 x 78MM
Package included:
1 x power amplifier board
