■ Outline
YDA136 (D-60) is a high efficient and high output digital audio power amplifier controller IC. By combining a general purpose PowerMOSFET (hereafter called PowerMOSFET) which is connected with YDA136 and BTL, it is able to compose a high efficient audio power amplifier such as 60Wx2ch (Supplied voltage=32V, RL=6Ω) and 100Wx2ch (Supplied voltage=40V, RL=6Ω).
YDA136 has 24bit 192kHz (max) DAC and 6 to -73dB（1dB Step） of electron volumes in addition to a digital amplifier controller, and supports a digital audio signal input. Furthermore, it also supports an analog audio signal input with DAC bypasses.

■ Features
• High Output Power
   100W (VBB=40V, RL=6Ω)
   60W (VBB=32V, RL=6Ω)
• Low Distortion Rate(THD+N)
   0.05% (Po=50W, 1kHz, RL=6Ω, at digital input)
   0.03% (Po=50W, 1kHz, RL=6Ω, at analog input)
• High S/N Ratio
   100dB (VBB=40V, A-filter, Gain=21.7+6dB, RL=6Ω, at digital input
• Low Residual Noise
   100µV (VBB=40V, Gain=21.7+6dB, at digital input)
   70µV (VBB=40V, Gain=21.7+6dB, at analog input)
• Channel Separation 80dB (1kHz, Po=50W)

• Supports 24bit Digital input and Analog input
• Built-in 6 to -73dB（1dB Step） of electron volume
• Multi-channel synchronous operation by switching Master/Slave function.
• Protect reset function
• Hard mute function
• Monophonic function
• Unusual operation detection protection function (Over current, Supplied voltage, Speaker terminal short, Clock stop, Heat）
• Pop noise rejection function at the time of power-up
• 100 pin plastic SQFP
   Pin lead plating with Pd-free (YDA136-SZ)