San Jose, Calif. - Asahi Kasei Microsystems (AKM) Semiconductor Inc. is offering a low-power, 16-bit audio analog-to-digital (A/D) converter with a built-in 15-dB gain amplifier for portable video and audio equipment and digital video recorders. Marketing manager Richard Kulavik claimed that the part, priced at $2.17 in 1k quantities, "sets a new price standard for this level of feature integration and performance."
"Demand continues to grow for cost-effective devices that demonstrate high performance in the digital conversion of analog voice signals in microphones, for portable video and audio equipment, as well as in digital video products, such as hard disk recorders," Kulavik said.
The AK5355 targets microphone input applications and TV audio digital conversion.
The device features an on-chip digital filter, 8-kHz to 50-kHz sample rates, a single-ended input and a digital high-pass filter for dc-offset cancellation. Its master clock frequency supports 256, 384 and 512 fs; its power supply is 2.1 to 3.6 volts; and the converter supports 16-bit MSB, LSB and I2S audio interface formats for easy interfacing with external CPUs. It is packaged in a 16-pin thin shrink small-outline package.
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EETInfo No. 609