Flexible subwoofer signal processing solution works in analog domain
4 April 2007
Analogue, Mixed Signal, LSI
An advanced subwoofer signal processing module solution for quickly upgrading existing subwoofer plate amplifier designs has been introduced by Anadigm. The SonicMaster1, which will be available as a chipset or module, offers an enhanced feature set for state-of-the art subwoofer design.
Anadigm's audio dpASP (dynamically programmable analog signal processor) provides a programmable platform for subwoofer signal conditioning; enabling equalisation, band-pass filtering and amplifier clipping and woofer bottoming limiter protection for an active subwoofer design.
It comes out of the box with useable pre-sets. One may customise the default settings using a simple, graphics-based package. There is no need to use DSP as this system works entirely in the analog domain. To adjust settings for, say, the compressor to match the peak limits of a woofer and amplifier, is as simple as adjusting the software settings.
The SonicMaster1 subwoofer module is a 3,3 V, 2-chip solution using Anadigm's dynamically programmable analog signal processor (dpASP) with an Audio State Machine. Configurable functions include filters such as high-pass and low-pass (Linkwitz-Riley), notch, band-pass, and Linkwitz Transform. Long time constant averaging, peak detector and automatic gain control are also easy to implement.
The first member of the SonicMaster series is the AN237K04, consisting of the AN231E04 dpASP and the AN237C04 state machine. It features 100% analog signal path, options for pushbutton or rotary controls, LCD display module, factory presets and end-user adjustments. A product brief can be found at www.anadigm.com/_doc/PR0237E04-0001.pdf.
Further reading:
High-temperature closed-loop MEMS accelerometer
RS South Africa
Analogue, Mixed Signal, LSI
This sensor from TDK is a high-temperature MEMS accelerometer with ±14 g input range and a digital interface for measurement while drilling applications.
Read more...
Dual accelerometers on the same die
Altron Arrow
Analogue, Mixed Signal, LSI
The LSM6DSV320X is the first mainstream inertial sensor to house a gyroscope alongside two accelerometers, one capable of sensing up to ±16 g and one sensing up to a staggering ±320 g.
Read more...
Dual-range IMU with edge processing
EBV Electrolink
Analogue, Mixed Signal, LSI
ST’s innovative LSM6DSV80X combines two accelerometer structures for 16 g and 80 g full-scale sensing, a gyroscope up 4000 dps, and embedded intelligence in a single component.
Read more...
High-reliability isolation amplifiers
EBV Electrolink
Analogue, Mixed Signal, LSI
The VIA series of isolation amplifiers from Vishay are designed to deliver exceptional thermal stability and precise measurement capabilities.
Read more...
Mibbo QT2C Series signal isolators
Conical Technologies
Analogue, Mixed Signal, LSI
The Mibbo QT2C Series isolators support a rich combination of input and output signals, working with either current loops or voltage levels.
Read more...
IMU with dual-sensing capability
EBV Electrolink
Analogue, Mixed Signal, LSI
ST’s 6-axis inertial measurement unit integrates a dual accelerometer up to 320g and embedded AI for activity tracking and high-impact sensing.
Read more...
Plural data converter series
Analogue, Mixed Signal, LSI
Silanna Semiconductor has announced the launch of Plural, a new generation of data converters for customers eager to find a more available, affordable, high-performance alternative to existing brands.
Read more...
Precision JFET op-amp
Altron Arrow
Analogue, Mixed Signal, LSI
The specifications of the ADA4620 make it optimal as a front-end amplifier in a data-acquisition system, or for a TIA circuit with high input impedance.
Read more...
A new era in modular I/O solutions
Rugged Interconnect Technologies
Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.
Read more...
High voltage instrument op-amp
iCorp Technologies
Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.
Read more...
printer friendly version