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SM6453A
3-wire Serial Data Volume Control for Headphone Amplifier IC
The SM6453A is a stereo headphone amplifier IC with built-in electronic volume controlled by 3-wire serial data. Two switchable input systems are supported. It features bass boost function, automatic gain control (AGC) function, power-down function, and beep signal input/output function, making it ideal for use in portable electronic products.
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2 stereo system inputs, selectable 1 output system |
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+12dB to -68dB output voltage gain range (GCNT)
+12dB headphone amplifier gain (GHPA) |
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Attenuation function
1.0dB step width, 81 steps, 0 to -80dB range (GEVR) |
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Mute function |
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Bass boost function (2 boost characteristics controlled by external RC network) |
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Automatic gain control function (AGC) |
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26mW+26mW maximum output power (PoMAX)
(1kHz, THD+N=10%, 16Ω load, 2.0V supply voltage) |
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Package:QFN-32-060050-1 |
·Portable audio
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Datasheet(PDF 351KB)
