TOKYO–(BUSINESS WIRE)–Oct. 31, 2018
Toshiba Electronic Devices & Storage Corporation (“Toshiba”) today announced the launch of "TCB702FNG," an addition to its 4-channel high-efficiency linear power amplifiers that meet current market requirements for high efficiency. Sample shipments start today with mass production scheduled to begin in the first quarter of 2019.
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Toshiba: A 4-channel high-efficiency linear power amplifier "TCB702FNG" with 45W output. (Photo: Business Wire)
With "TCB702FNG," Toshiba has improved on its technology to realize efficiency comparable with a digital high efficiency of class D amplifier in actual operating range (0.5 to 4W). Power consumption is cut by up to 80% of that for a typical class AB amplifier. The new IC’s maximum output is 45W, and the IC is pin-compatible with “TCB701FNG,” the company’s high efficiency linear power amplifier with maximum 50W output.
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.
|Maximum output||45W×4ch (Vcc=15.2V,RL=4Ω, MaxPower)|
|Supply voltage||6V to 18V|
|Output noise voltage||60μVrms (BW=DIN_AUDIO)|
|Power consumption||Up to 80% lower than a typical class AB amplifier
(supply voltage=14.4V in case of 0.8W output)
･ 6V operations
･ Full-time error detection for output DC offset voltage
･ I2C bus control allows diagnosis of errors such as cross output connection.
･ Various detections are selectable from two or more settings, such as a gain, mute time constants and temperature
･ Can be used as both a power amplifier and line output amplifier.
･ Various built-in protection circuits (output cross connection, over voltage, and low voltage)
 Comparison with Toshiba’s current product “TCB001FNG.” As of October 31, 2018, Toshiba survey.
For more information about this new product, please visit:
System LSI Marketing Dept.III
Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.
About Toshiba Electronic Devices & Storage Corporation
Toshiba Electronic Devices & Storage Corporation combines the vigor of a new company with the wisdom of experience. Since becoming an independent company in July 2017, we have taken our place among the leading general devices companies, and offer our customers and business partners outstanding solutions in discrete semiconductors, system LSIs and HDD.
Our 22,000 employees around the world share a determination to maximize the value of our products, and emphasize close collaboration with customers to promote co-creation of value and new markets. We look forward to building on annual sales now surpassing 800-billion yen (US$7 billion) and to contributing to a better future for people everywhere.
Find out more about us at https://toshiba.semicon-storage.com/ap-en/top.html
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Toshiba Electronic Devices & Storage Corporation
Chiaki Nagasawa, +81-3-3457-4963
Digital Marketing division