Basic parameters

• Input voltage range: maximum 5-13V,
• Quiescent current: 14mA (VDD=12V\output with LC)
• Standby current: 20uA (VDD=15V)
• Power amplifier switching frequency: 560KHz
• Differential input
• The spread spectrum function effectively suppresses FM interference.
• Maximum gain: 32.46 db (42 times);
• Separation (Crosstalk): -106db
• Signal-to-noise ratio (SNR):95db
• Startup time: 64mS,
• Off time: 64uS.
• ESOP16 package

Application requirements for 4Ω load

• Input voltage range: maximum 5~10V (note: the power supply voltage cannot exceed 10V when using a 4Ω load)
• PBTL mode is not supported
• When VDD=10V in BTL mode, output power Po=2 at 4Ω load10W THD+N≤1% ·BTL模式VDD=10V時，4Ω負載時輸出功率Po=212W THD+N≤10%

Application requirements for 8Ω load

• Input voltage range: maximum 5~13V (note: the power supply voltage cannot exceed 13V when using an 8Ω load)
• PBTL mode is not supported
• In BTL mode, when VDD=10V, the output power Po=2 at 8Ω load8W THD+N≤1% ·When VDD=10V in BTL mode, output power Po=2 at 8Ω load10W THD+N≤10%

Basic peripheral circuit configuration

It is recommended to choose 470uF electrolytic capacitor + 105 + 104 ceramic capacitor for the voltage input filter capacitor. In addition to the capacitance, the withstand voltage must also be considered when selecting the capacitor. If it will be used at low temperature, the temperature characteristics must also be considered. Generally, the withstand voltage is based on the actual input and output voltage. 2 times to select the capacitor withstand voltage.

The size of the input capacitor affects the frequency response of the audio. It is recommended to use a 0.1uF capacitance value for single-ended input, and a 1uF capacitance value for differential input. Single-ended input capacitance exceeding 0.1uF will cause a POP sound on the output.

Selection of input resistance (Rin)

XA9226BB has a built-in two-stage amplifier. The gain of the first stage is configurable through external resistors, while the gain of the second stage is internally fixed. The gain of the amplifier can be configured by selecting the parameter value of the input resistor (Rin):