Universal front-end equipped 103dB, 2-channel audio ADC 'PCM1862'
Adopting a new approach to audio function integration that facilitates compliance with the European Commission's Eco-Design Directive, achieving high performance in the final product. It enables the development of lower-cost, smaller, and smarter products without the need for a 5V power supply or external programmable gain amplifiers (PGA). The highly flexible audio front end eliminates the need for external voltage divider resistors and accommodates a wide range of input levels from a few mV small microphone inputs to 2.1 VRMS line inputs. It also integrates numerous system-level features that support or serve as alternatives to DSP functionality. All these features can be powered by a single 3.3V supply. The built-in bandgap voltage reference provides excellent PSRR, eliminating the need for a dedicated analog 3.3V rail. An evaluation module is also available.
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basic information
■ Universal analog microphone input, 2.1 VRMS full scale 8 analog input pins with MUX/PGA Analog pre-mix function before PGA/MUX Single-ended/pseudo-differential/differential input with microphone bias 4 digital microphone inputs ■ I2C/SPI control ■ Hardware programmable gain amplifier ■ Software programmable gain amplifier ■ Built-in high-performance audio PLL ■ Single 3.3V power supply for analog/digital Additional 1.8V core/interface to reduce power consumption ■ Power consumption at 3.3V: <85mW ■ TI's "Energysense technology" audio content detector: for automatic system wake-up/sleep ■ Master/slave audio interface ■ Mixer function: Digital mixer that mixes ADC output and I2S Simultaneous input Zero-crossing PGA gain change ■ Automatic PGA clip suppression control ■ PCB footprint compatibility across all products in the PCM186x family ■ AEC-Q100 compliant product 'PCM1862-Q1' available for automotive applications
Price information
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Applications/Examples of results
Home theater/TV, in-car head unit, Bluetooth speakers, microphone array processor, etc.
Company information
Texas Instruments (Headquarters: Dallas, Texas, USA; Chairman, President, and CEO: Rich Templeton; Abbreviation: TI) supports customers in developing new electronic devices that make the world "more convenient, healthier, safer, environmentally friendly, and enjoyable," and works together to solve challenges. TI has manufacturing, design, and sales locations in over 30 countries worldwide and continues to pursue innovation. TI's analog ICs and embedded processing support everyday life from behind the scenes in a society overflowing with digital devices. The company is actively investing in products and technologies for markets that will become increasingly important in the future, such as the environment, energy, healthcare, medical devices, and security. Technical Inquiry Contact TI Japan Product Information Center 【http://www.tij.co.jp/pic/】