Analog Input Monaural Class-D Speaker Amplifier
BD5638NUX is a low voltage drive class-D monaural speaker amplifier that was developed for cellular telephones, mobile audio products and the others. The LC filter of the speaker output is unnecessary and only 3 external components are needed by fixed gain 18dB. Because the efficiency is high and is low consumption power with the class-D operation, it is the optimal for the application of the battery drive. Also Current consumption of 0µA when standby and fast transitions from standby to active with little pop noise make it is suitable for applications that switch repeatedly between suspended and active.
For Automotive usage, please contact Sales.
Features:・ No LC filter required
・ Only 3 external components
・ High power 2.5W / 4Ω / BTL (VDD=5V, RL=4Ω, THD+N=10%)
・ High power 0.85W / 8Ω / BTL (VDD=3.6V, RL=8Ω, THD+N=10%)
・ Gain 18dB
・ Analog differential input / PWM digital output
・ Pop noise suppression circuit
・ Built-in standby function
・ Protection circuit (Short protection [Auto recover without power cycling], Thermal shutdown, Under voltage lockout)
・ Small package 8pin VSON
Reference Design / Application Evaluation Kit
- Evaluation Board - BD5638NUX-EVK-001
BD5638NUX series are a small packaged low voltage monaural Class-D speaker amplifier for mobile phone, portable type electric devices. BD5638NUX evaluation board can be used as BD5632NUX evaluation board or BD5634NUX evaluation board by changing the input resisters.