Description
Digital Amplifier Function
YDA148 has digital amplifiers with analog input, PWM pulse output, the maximum output of 15W × 2ch.Adopting “Pure Pulse Direct Speaker Drive Circuit” reduces distortion and noise on PWM pulse output signal.Digital Amplifier Gain The total gain of the digital amplifier varies depending on operation modes, as shown below.NCDRC1 L NCDRC0 L GAIN1 L L H H L L H H L L H H L L H H GAIN0 L H L H L H L H L H L H L H L H Total Gain +22dB +28dB +34dB +16dB +34dB +40dB +46dB +2
Features
- Power Limit Function, Non-clip Function, and DRC (Dynamic Range Control) Function that were developed by Yamaha original digital amplifier technology. YDA148 has overcurrent protection function for speaker output terminals, high temperature protection function, and lowsupply voltage malfunction prevention function. Features
Operating supply voltage range PVDD: 8.0V to 16.5V Maximum momentary output 15 W×2ch (VDDP=15V, RL=8Ω, THD+N=10%) Maximum continuous output 15 W.
- 1×2ch (VDDP=15V, RL=8Ω,.