SUNNYVALE, Calif. -- Oki Semiconductor here has announced a new linear codec device designed to lower the costs of digital-cellular handsets.
Based on the company's digital signal processor (DSP) architecture, the ML7041 supports several cellular standards, such as code-division multiple access (CDMA), Global System for Mobile Communications (GSM), and time-division multiple access (TDMA).
The ML7041 consists of a speaker driver, tone generator, andvoice detection circuits on the same device. The device also enhances voice quality in a handset through a 14-bit linear converter technology.
"With the introduction of the ML7041, designers can now improve voice clarity while shrinking the design around a low 2.4-volt IC," said Scott Gardner, wireless products marketing manager for Oki Semiconductor. "This new product defines a new class of energy-efficient Codec, providing unprecedented levels of flexibility and extended mobile air-time," he said.
The ML7041 is the company's third-generation linear Codec device. The integrated speaker amplifier in the new ML7041 enables OEMs to develop products with a maximum power of 100 mW per voice signal.
The DSP architecture is said to improve filtering performance and telephony tones in a handset, the company said. The on-chip DSP core also boosts signal-to-noise levels while lowering power consumption in a system, they added.
The ML7041TB is available in a 48-pin TQFP package. It is now available for below $3.50 in 100,000-unit lots.