■ 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)