Wolfson Introduces New Audio Codec (Figure)

Wolfson Microelectronics Co., Ltd. announced the launch of a new series of the current audio codec chip, handheld multimedia devices to meet the growing, the demand for the perfect sound. This series of new chip features include an enhanced audio processing, a video buffer and MAX8211CPA datasheet and a new powerful speaker drivers, and MAX8211CPA price and Wolfson will be available in the market for a range of appropriate solutions.

Wolfson audio codec devices range in the two products, that is, with the stereo WM8980 and MAX8211CPA suppliers and the mono WM8982 are all with a video buffer, which can be directly connected to the TV broadcast image. Provide images in both functions, but also provides many portable audio devices, this feature will become increasingly popular. In the past, these functions require an external video amplifier. WM8978 - Wolfsons third device is the October 2004 launch of the WM8974 are full-featured stereo version.

Video buffer is designed to support the video connection to connect the AC or DC, with an optional 6dB of gain and 3rd order low pass filter structure to provide high-quality video copying. This design eliminates the need for the existing mode of calibration of the sink and the large DC blocking capacitor requirements. The three new products

filter wind noise with the digital signal processing core, in particular, the video system to improve the audio recording; they also enhance the 3D sound with a 5-band equalizer to improve audio output; a programmable notch filter removes the sliding lens focal length and alignment when the motor noise. These devices are also supported with 12 to 19MHz frequency range of integrated PLL. They also integrated differential or single-ended microphone support, and to drive speakers and headphones to further reduce the final system component count.

The three codecs can deliver up to 900mW power, high-quality sound speakers, they are capable of driving piezo speakers. A digital playback limiter prevents additional speaker output. The three codecs operating voltage simulation can be as low as 2.5 volts, 1.62 volts for the digital core.

Prices and applicability

WM8978 and WM8982 are using 32-pin QFN package. Purchase price when the number is 10,000, respectively $ 3.85 and 2.10 U.S. dollars. WM8980 with 40-pin QFN package, the purchase price when the number of 4.50 for the 10,000 U.S. dollars.