Product category:
Analogue and Mixed Signal ICs
News Release from: Texas Instruments (April 2001-March 2006) | Subject: TPA3100D2 and TPA3101D2
Edited by the Electronicstalk Editorial
Team on 19 January 2006
Power amps upgrade digital TV audio
Two new stereo Class-D audio power amplifiers for digital TVs feature pop/click-minimising circuitry, low total harmonic distortion and excellent signal-to-noise ratio.
Texas Instruments has introduced two new stereo Class-D audio power amplifiers for digital televisions (DTV) The devices feature highly efficient Class-D operation and industry-leading audio performance, including pop/click-minimising circuitry, low total harmonic distortion and excellent signal-to-noise ratio
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
Related stories
Data buffer has dual multiplexer
Texas Instruments has introduced the industry's first 0- to 4-Gbps data buffer/signal conditioner with a dual multiplexer.
Reference design for wireless optical comms
A new technology from Texas Instruments dramatically cuts the cost and complexity of bringing the high-speed datarates of optical networking to end users.
The amplifiers' easy-to-use layout and low electromagnetic interference (EMI) speed the design cycle for manufacturers of medium- and large-screen DTVs including DLP HDTV, liquid crystal display (LCD) and plasma.
The TPA3100D2 drives up to 20W per channel of continuous stereo output power with no external heatsink and is typically used in 27in and larger DTVs with the audio fidelity and form factors consumers demand.
The TPA3101D2 is a pin-for-pin version with 10W per channel output power that targets DTVs smaller than 27in.
Further reading
TI adds low-cost and high-integration DSP pair
Texas Instruments has unveiled the latest pair of programmable DSPs in its ultra-power-efficient TMS320C55x family of digital signal processors.
Triple-output power modules shrink ADSL designs
Texas Instruments has unveiled two new triple-output plug-in power solutions for asymmetric digital subscriber line (ADSL) applications.
Both devices can drive a nominal load down to 4ohm.
The TPA310xD2 devices provide excellent performance while reducing the number of external components required, which cuts overall system cost and allows for a sleeker end product.
For instance, the TPA3100D2 is 92% efficient when driving 8ohm speakers, eliminating the need for an external heatsink.
The TPA310xD2 devices feature wide supply voltage operation from 10 to 26V, simplifying power supply requirements and making operation from the LCD backlight voltage possible.
Thermal and short circuit protection with an auto recovery option ensures excellent reliability and robust operation.
The two amplifiers make the design process simpler and faster so designers can focus on differentiating their products and speeding time to market.
For example, the devices are pin-for-pin compatible, allowing TV designers using the TPA3101D2 to easily upgrade their systems to the 20W output power of the TPA3100D2 without investing more engineering time.
And each device's pinout has been optimised to reduce EMI and provide for easy layout.
In addition, reference layouts have been tested and passed the EMI requirements of FCC Part 15 Class B and CE CISPR 22 regulations.
"We are excited about these additions to our TV amplifier lineup", said Gary Reichmuth, Manager of TI's analogue audio power amplifiers.
"Customers are responding favourably to the compelling combination of high efficiency, low EMI and great audio performance these devices provide for their TV applications".
The TPA3100D2 and TPA3101D2 Class-D audio power amplifiers are available now in 7 x 7mm 48-pin quad flat no-lead (QFN) packages from TI and its authorised distributors.
The devices will also be available soon in 48-pin thin quad flat packages (TQFP).
Suggested resale pricing in quantities of 1000 is $3.50 for the TPA3100D2 and $3.10 for the TPA3101D2.
Samples and EVMs are available for 24-hour delivery.
• Texas Instruments (April 2001-March 2006): contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
