Product category:
Reference Designs
News Release from: NXP Semiconductors | Subject: Nexperia PNX0161
Edited by the Electronicstalk Editorial
Team on 23 August 2007
USB 2.0 drives headsets
Nexperia PNX0161 has built-in DSP software, allowing OEMs to pre-set equalisers and maximise echo cancellation for improved sound quality.
NXP Semiconductors (NXP) has released the world's first USB-driven digital audio headset solution, Nexperia PNX0161 The new solution from NXP leverages the USB 2.0 standard to shift the core audio streaming functions to the USB connector on the host device, alongside the existing battery charging and PC synchronisation functions
This article was originally published on Electronicstalk on 23 Oct 2001 at 8.00am (UK)
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"NXP is leveraging its pole position to promote the adoption of USB technology with industry-first innovations, setting the stage for the future of USB applications for better connectivity and convenience on mobile phones, consumer electronics and PC peripherals", said Hans Fleurkens, Product Marketing Manager, Mobile and Personal Business Unit, NXP Semiconductors.
"Power consumption was the biggest challenge to the provision of digital audio on a headset, and NXP's PNX0161 is the first to address this most efficiently, while also offering a choice of functionality through a programmable core".
NXP's USB-driven digital audio headset solution, Nexperia PNX0161, has built-in DSP software, allowing OEMs to pre-set equalisers and maximise echo cancellation for improved sound quality.
The programmable ARM7TDMI core is embedded with a DC/DC convertor, which is powered through the USB bus.
Fully compliant with USB specifications, the solution offers plug-and-play operation with any USB host or On-The-Go (OTG) device and supports USB audio and human interface device (HID) classes.
In addition, foreseeing the emerging standardisation of USB 2.0 in mobile devices, NXP also expands its applications for a compelling GSM/MP3 docking station reference design for maximum functionality such as mobile phone and MP3 player power charging, FM-radio enabled speakers and Bluetooth connection.
The single-chip Nexperia PNX0161 is a small, ultra-low power Hi-speed USB 2.0-compliant solution that provides stereo playback and recording, as well as FM radio.
Available in a TFBGA88 package (7 x 7mm), NXP's Nexperia PNX0161 requires very little power (~10 mA at Vbus) for playback mode.
Embedded power management functionality, alongside intelligent power control also contributes to this highly power-efficient solution.
Especially designed to suppress noise coming from the host, the PNX0161 is available in two versions - programmable Flash or cost-effective ROM - that can be switched seamlessly during product ramp-ups.
NXP's GSM/MP3 USB 2.0 docking station reference design is targeted at systems that bring together the functions of a GSM-based docking station for a mobile phone, an MP3-based docking station for a portable media player and a PC speaker.
Measuring only 5 x 5mm, the design is built around two ICs, the NXP SAA9870 and the NXP TDA8932BTW.
The SAA9870 is a single-chip solution that integrates a powerful ARM7 core and a USB 2.0 codec with support for audio streaming and microphone functionality.
The TDA8932BTW is a 2 x 15W, high-efficiency, Class-D amplifier that delivers high-quality sound.
Compared to conventional docking stations, which use ultra-low-efficiency speakers built into the laptop, PC monitor or mobile phone, this reference design provides distinctly superior sound and microphone performance.
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