Laurence Marchini, Editor, writes:
We see from your search that you're looking for information on the term "QAM",
and we have a large number of manufacturers' news releases and technical articles here on Electronicstalk which will be of interest.
Let me be your guide.
Start with
the news release D/A convertor simplifies RF design from
Maxim Integrated Products, which we summarised at the time by saying "The MAX5881 solution is ideal for Docsis 3.0-compliant edge QAM devices and cable modem termination systems".
A few weeks before,
we featured the news release Vector signal analysis for long-term evolution from
Agilent Technologies Europe: "Software option provides RF and baseband engineers with comprehensive signal analysis solution for LTE physical layer testing and troubleshooting of LTE transceivers and components".
In September 2007, we covered the news from Anritsu (UK)
concerning its Mobile WiMAX handheld test solution
- take a look at Handheld analysers turn to WiMAX installation
which says: "Test platforms provide an easy and highly accurate method for conducting RF, demodulation and over-the-air measurements on WiMAX signals".
Take a look also at the news release from Micronas USA, TV processors take PCI Express route to market,
as well as DVB-C tuner helps shrink cable set top boxes from RF Magic,
and Mobile TV offerings in focus at NAB from Rohde and Schwarz.
See also:
Demodulator core cuts product-development cycle
(March 2007)
North American Digital Demodulator core enables semiconductor manufacturers to quickly integrate complex receiver technology into digital televisions and other mass-market DTV products
Cable box chip keeps up with DOCSIS standards
(March 2007)
Low-cost front-end IC for cable TV STBs supports the DOCSIS 2.0 standard, and is fully compatible with the DOCSIS 3.0 channel-bonding scheme
Cable TV demodulator is improved
(February 2007)
High performance QAM (quadrature amplitude modulation) demodulator adds new features to the widely used STV0279D to deliver dramatic performance improvements
Preventive monitoring tools on show in Japan
(November 2006)
Pixelmetrix will demonstrate its DVStorIP-Gen, at Inter BEE 2006 from 15th to 18th November 2006 in Japan
Receiver promises minimal distortion
(November 2006)
SMT packaged GaAs MMIC receiver combines a three stage LNA followed by a single transistor 'Tee' attenuator and an image reject fundamental resistive mixer
Portable network monitor is fully self-contained
(September 2006)
Pixelmetrix has upgraded its DVStation Mini, a single-port version of the DVStation
Quadrature modulator boasts big dynamic range
(June 2006)
A quadrature modulator operates from 50 to 2200MHz, making it well suited for low intermediate frequency and RF applications
Quadrature modulators have all bands covered
(May 2006)
A family of five pin-compatible quadrature modulators together cover the 250MHz to 4GHz frequency range
Power amplifier is optimised for linear operation
(February 2006)
A new gallium arsenide monolithic microwave integrated circuit power amplifier is optimised for linear operation
RF transistors meet WiMAX basestation demands
(January 2006)
Seventh-generation high-voltage RF LDMOS technology enables the RF power amplifier performance required for use in WiMAX basestations operating in the 3.5GHz band
Network tester improves VoIP coverage
(October 2005)
JDSU has expanded the VoIP testing capability of its industry-leading digital services activation meter (DSAM) by releasing the DSAM version 2.4 with new VoIPCheck test capability
Design lab puts Xilinx FPGAs to DSP duties
(October 2005)
A new second generation virtual digital signal processing design lab builds on the Spartan-3 two million-gate XC3S2000 FPGA from Xilinx
Chipset cuts transceivers down to three devices
(October 2005)
A new GaAs MMIC 13/15GHz chipset combines a highly integrated image reject receiver and transmitter with a compact two-stage power amplifier
Power amps target Wi-Fi and WiMAX basestations
(May 2005)
Microwave Technology has released two high linearity power amplifier (PA) products for 802.11 Wi-Fi and emerging 802.16 WiMAX basestation applications
Field meters aid installation and maintenance
(May 2005)
A new family of professional field strength meters is designed to meet the particular installation and maintenance requirements of antenna, cable and satellite systems
News on the QAM-256 transmitters from Emcore Corp
(March 2005)
Emcore Corp has released a new generation of 32-channel 1550nm wavelength QAM-256 transmitters for broadband cable television dense wavelength division multiplexing networks
News on the QAM interface modules from Pixelmetrix Corp
(October 2004)
Pixelmetrix has a new family of interface modules ideal for CATV operators using QAM modulation
Dual ADCs save up to 40% board space
(July 2004)
The industry's first device to integrate two 14bit ADCs on a single chip is the flagship device in a new family of high-speed dual ADCs offered in a range of resolutions and speeds
Vector signal generator aids RF characterisation
(March 2004)
Engineers now have a complete platform for accelerating RF product design, validation and manufacturing test with National Instruments new 2.7GHz NI PXI-5670 RF vector signal generator
Deeper analysis for broadband signals
(March 2004)
Aeroflex has added a broad array of new signal measurement capabilities to its Celerity CS35000 Series broadband signal analyser and recorder family (BSA)
Software tools speed comms testing
(November 2003)
The new Modulation Toolkit 2.0 and Spectral Measurements Toolkit 2.0 from National Instruments give engineers tools to perform spectrum analysis, analogue modulation and digital modulation
PXI-based platform heralds new wireless strategy
(October 2003)
The Aeroflex 3000 series is a PXI-based modular test suite for mobile phone and general-purpose wireless test
Reference design makes a PVR tuner in seven chips
(July 2003)
Zarlink Semiconductor has unveiled a production-ready blueprint for a complete tuner subsystem used in a digital cable PVR
News on the DVB-C QAM interface module from Pixelmetrix Corp
(June 2003)
Pixelmetrix has developed a new DVB-C QAM interface module for its DVStation
Broadband IP library gains wireless functions
(March 2003)
Commsonic has added a multimode multirate QAM modem and IEEE802.16 channel codec to its family of broadband communications IP
Super-fast 12bit ADC handles European cable specs
(June 2002)
According to Analog Devices, the AD9430 is the fastest 12bit A/D convertor on the market, capable of encoding at 210Msample/s
Chip keeps an eye on complex comms waveforms
(March 2002)
The AD8362 is the first RF IC designed to measure the complex modulated waveforms common to all next-generation wireless infrastructure equipment
DAC aims for multicarrier basestations
(December 2001)
Claiming the industry's highest performance for high-datarate digital communications applications, Texas Instruments has a new high-speed high-resolution LVDS-compatible DAC
ISG Broadband pioneers LSI RF tuner
(December 2001)
ISG Broadband is the first company to use LSI Logic's Hi-IQ RF tuner, the DPS7000
DACs enable direct RF upconversion
(October 2001)
The AD977x family of dual interpolating TxDAC+ convertors from Analog Devices allows simpler direct RF up conversion architectures that require fewer external components
Graychip acquisition adds to TI mixed-signal line
(September 2001)
Texas Instruments has added a new category to its high-performance analogue and mixed-signal portfolio with the purchase of Graychip
Speedy dual DACs have the edge for wireless
(August 2001)
Texas Instruments has a new family of 125Msample/s dual D/A convertors providing 10, 12 and 14bit resolution in pin-compatible packages