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Audio MM1407
Audio
Monolithic IC MM1407
Outline
This audio IC was developed for notebook PCs and allows major reduction of amp circuit board area. (To conform to PC98, includes built-in speaker drive amp, headphone amp, line amp. stereo/monaural switching, DC voltage control electronic volume, watchdog, logic control function.)
Features
(1) Speaker amp: Stereo BTL output 0.7W (when VCC = 5.0V, RL = 8Ω) (2) Electronic volume control (-60 ~ +20dB). THD = 0.5% (when POUT = 300mW, RL = 8Ω) THD1 = 0.5% (when VOUT = 100mVrms, RL = 16Ω) THD2 = 0.1% (when VOUT = 1VmVrms, RL = 10kΩ) (4) Line amp: Mixes 4 inputs ( 2ch signals and outputs on 3 outputs ( 2ch. Stereo/monaural switching possible on one line. THD = 0.