Analogue, Mixed Signal, LSI


Asynchronous audio codec with on-chip amplifier

8 March 2006 Analogue, Mixed Signal, LSI

STMicroelectronics' STw5095 low power stereo audio/voice codec is designed as a compact and flexible solution for delivering high-quality audio for battery-powered multimedia products and mobile phones. Requiring few external components, it provides high audio quality analog stereo mixing, recording and playback capability, with three line inputs and two direct differential microphone inputs. Audio flows are digitised with 20-bit resolution at between 8 and 96 kHz, the ADC giving 93 dB dynamic range and 0,001% THD - full scale output at 2,7 V. The codec is compatible with a range of audio data serial interfaces including I²S, SPI and PCM. The stereo DAC outputs and multiple analog inputs are selectable and mixable; mixed signals can be connected to the chip's multiple output channels or to the ADC. Control registers for switching and gain control, and for the control of the on-chip bass/treble/volume DSP in the digital audio flow, are accessed through a selectable I²C or SPI compatible interface. Embedded amplifiers can directly drive 40 mW stereo headphones and also drive a separate 500 mW loudspeaker output.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Hybrid capacitors combine the best of both worlds
26 February 2020, Avnet South Africa , Power Electronics / Power Management
The different properties of EDLCs, Li-ion batteries and Li-ion capacitors suits each technology to various different applications.

Read more...
V2X: The future of vehicle communications
29 January 2020, Avnet South Africa , Editor's Choice, Telecoms, Datacoms, Wireless, IoT
A recent report by Juniper Research forecasts that more than 62 million vehicles will be capable of vehicle-to-vehicle communication by 2023; up from just over 1,1 million in 2019.

Read more...
STM32 system-on-chip for LoRa
29 January 2020, Avnet South Africa , Telecoms, Datacoms, Wireless, IoT
Powering the search for sustainability through smart infrastructure and logistics, smart industry and smart living, STMicroelectronics has revealed the world’s first LoRa system-on-chip (SoC) for connecting ...

Read more...
Arm Cortex-M33-based MCUs
29 January 2020, EBV Electrolink , Analogue, Mixed Signal, LSI
NXP Semiconductors announced the availability of its LPC552x/S2x microcontroller (MCU) family, further extending its efficient LPC5500 MCU series with the second of seven families planned for the series. ...

Read more...
Unity gain operational amplifier
29 January 2020, Altron Arrow , Analogue, Mixed Signal, LSI
The ADHV4702-1 is a high-voltage (220 V), unity-gain, stable precision operational amplifier. The next generation of proprietary semiconductor processes and innovative architecture from Analog Devices ...

Read more...
EERAM memory solutions retain data at power loss
29 January 2020, Avnet South Africa , DSP, Micros & Memory
Microchip Technology announced a new family of Serial Peripheral Interface (SPI) EERAM memory products that offers system designers up to 25% cost savings over the current serial non-volatile ram (NVRAM) ...

Read more...
Low-profile pressure transmitters
29 January 2020, Electrocomp , Analogue, Mixed Signal, LSI
TDK has expanded its portfolio with new EPCOS pressure transmitters whose performance profiles are specially tailored to the requirements of Industry 4.0. These low-profile pressure sensors are characterised ...

Read more...
Non-inverting converters for buck or boost operation
29 January 2020, Avnet South Africa , Power Electronics / Power Management
Texas Instruments introduced a family of four high-efficiency, low-quiescent-current (IQ) buck-boost converters that feature tiny packaging with minimal external components for a small solution size. ...

Read more...
Contactless payment SOC
29 January 2020, EBV Electrolink , Analogue, Mixed Signal, LSI
STMicroelectronics has released the next generation of its STPay system-on-chip (SoC) payment solution, leveraging state-of-the-art technology to increase contactless performance and protection, reduce ...

Read more...
Gate driver for silicon carbide transistors
29 January 2020, CST Electronics , Analogue, Mixed Signal, LSI
With the MAX22701E isolated gate driver from Maxim Integrated Products, designers of high-voltage/high-power systems can improve power supply efficiency, reducing power loss and the resulting carbon footprint. ...

Read more...