â�Power consumption up to 90% lower than general class AB amplifierâ�
TOKYO — (BUSINESS WIRE) — December 6, 2017 — Toshiba Electronic Devices & Storage Corporation today announced a new 4-channel high-efficiency linear power amplifier "TCB701FNG," that meets current market requirement for high efficiency. Sample shipments will start in January, 2018.
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Toshiba Electronic Devices & Storage Corporation: a new 4-channel high-efficiency linear power amplifier "TCB701FNG" for car audio. (Photo: Business Wire)
With "TCB701FNG," the company has improved on its technology to realize efficiency comparable with a digital high efficiency, class D amplifier in actual operating range (0.5 to 4W). Power consumption is cut by up to 90% of that for a typical class AB amplifier.
The new amplifier also includes a self-diagnosis function with I2C bus control that can diagnose errors and contribute to a suitable set design by changing the detection setting for gain or time constants. It also includes full-time error detection of output DC offset voltage, which can quickly detect abnormal output offset voltage and prevent speaker burnout, improving set reliability.
49W×4ch (Vcc=15.2V, RL=4Î©, MaxPower)
|Supply voltage||6V to 18V|
|Total harmonic distortion||0.01% (Pout=0.4W)|
|Output noise voltage||60Î¼Vrms (BW=DIN_AUDIO)|
Up to 1/10 lower than a typical class AB amplifier
|Functions and features||