TPA3221 Product Description:
This product operates on a wide 7-V to 30-V supply voltage, allowing usage in both Stereo (2 x BTL) and Mono (1 x PBTL) operations. It demonstrates output power at 10% THD+N like:
- 105-W Stereo into 4 Ω in BTL Configuration,
- 112-W Stereo into 3 Ω in BTL Configuration,
- 208-W Mono into 2 Ω in PBTL Configuration.
The output power at 1% THD+N includes:
- 88-W Stereo into 4 Ω in BTL Configuration,
- 100-W Stereo into 3 Ω in BTL Configuration,
- 170-W Mono into 2 Ω in PBTL Configuration.
TTA3221 can operate at a 5-V gate drive or built-in LDO for optional single-supply operation. It possesses a closed-loop feedback design with a signal bandwidth of up to 100 kHz for high-frequency content from HD sources. It records 0.02% THD+N at 1 W into 4 Ω and a 60-dB PSRR (BTL, No Input Signal). This product exceeds 108-dB in SNR (A-Weighted).
It offers the functionality of AD or HEAD modulation schemes and possesses low-power operating modes. This product also comes with standby modes for mute and low idle-current HEAD modulation schemes. Convenient for single-channel BTL operation, it accepts multiple input options to simplify Pre-Amp design. It allows for both differential and single-ended analog inputs.
For selectable gains, it offers options like 18 dB, 24 dB, 30 dB, and 34 dB. The device comes with integrated protection features covering a wide range of areas such as undervoltage, overvoltage, short circuit, etc. It also comes with clipping detection, overtemperature warning, and shutdown, along with DC speaker protection.
Take note that this product delivers a 90% efficient Class-D operation (4 Ω) and belongs to the pin-compatible family of devices with voltage and power-level options.
Features of the YJHiFi Q1:
The YJHiFi Q1 model utilizes an imported 5654 tube. The main filter capacitor features the original imported 1000UF/50V. It includes high-precision chip resistors to assure a strong signal-to-noise ratio. The PCB includes a 1.6mm thick double-sided board, with a 2.0 oz copper thickness and a full tinning process to guarantee the smooth flow of large and small currents.
The product features gold-plated RCA lotus seats for input and output — ensuring durability coupled with aesthetic appeal. Care has been taken to ensure board wiring is neat, elegant, and generates low noise. It features Qualcomm’s QCC3031 module to support sbc/aac. This amplifier uses the PCM5102 for independent Bluetooth DAC decoding.
Technical Specifications:
- Brand: YJHiFi
- Model: Q1
- Channel: 2
- Output power: 200W+200W
- Power supply: DC18-30V 7A (DC)
- Net weight: 0.65KG
- Size: depth157x width126x height44MM (excluding tube height)
The package includes a power amplifier.
