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DIGITAL AMPS

About of DIGITAL AMPS









Digital AMPS: Information From Answers.com

  • On this page: Digital AMPS IS-136 ( I nterim S tandard- 136 ) The second generation of the TDMA digital cellular system.
  • . First introduced in 1994, IS-136 is also known as "Digital AMPS" and "D-AMPS." See and .
  • . Digital AMPS and data standards 0.5G D-AMPS 3.5G 3.75G IS-54 and IS-136 are second-generation mobile phone systems, known as Digital AMPS (D-AMPS).
  • . D-AMPS is considered end-of-life, and existing networks are in the process of being replaced by / and technologies.
  • . D-AMPS uses existing channels and allows for smooth transition between digital and analog systems in the same area.
  • . It is not unusual for a Rogers D-AMPS customer to have coverage in a specific location one day, and then none in that same area the next.
  • . IS-54 maintains compatibility with Advanced Mobile Phone System (AMPS) in many ways.
  • . It is a digital extension of AMPS and so it is also quite widely known as Digital AMPS (D-AMPS).
  • . But sometimes D-AMPS and USDC also refers to the other prominent interim standard IS-136.



    Privateline.com: Digital Wireless Basics: Channels
  • . Let's look again at the D-AMPS digital traffic channel.
  • . It carries data, voice, and some signaling: The Digital Traffic Channel in Digital-AMPS) A conversation's data bits makes up the DATA field.
  • . The DVCC acts like a digital marker, similar to the supervisory audio tone in AMPS, keeping a mobile on frequency.
  • . Again, this is an AMPS discussion.
  • . All of this goes on while retaining a backward compatibility with analog phone service or AMPS.



    CruzPro A30 Digital Amps Gauge
  • CruzPro A30 Digital Amps Gauge and ).



    EEProductCenter.com :: Class-D digital amplifier made for flat-panel TVs
  • . Suited for 27-inch and larger FPDs, the digital amplifier operates more efficiently than traditional linear amplifiers, minimizing heat and eliminating the space required for an external heat sink, said Eric Droge, TI's marketing manager for audio power amps.
  • . Consequently, less heat is generated using Class-D or digital amps, which eliminates the need for heat sinks, Droge explained.
  • . Since Class-AB amplifiers, which have ruled the market for many years, were also linear-input devices, analog-input Class-D amps were a natural succession.
  • . "We are starting to see a shift from Class-AB or linear amps to Class-D digital amps especially in the home entertainment market, " he said.

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    EEProductCenter.com :: Single-chip stereo digital amp doubles channel count
  • . By the way, these are Class D amps, which isn't something TI generally promotes about its PurePath devices.
  • . "In the past, we haven't marketed them as such partly because of the negative perception of Class D amps, " Belnap said.
  • . Most of the amps being used today in the world are Class AB.
  • . However, in the home theatre market, Class D amps are dominating, according to Belnap.
  • . Essentially, Class D amps provide a cost advantage over anything above 50 W per channel, Belnap said.
  • . Additionally, consumers want increased functionality, such as a DVD player, tuner, decoding capability and six-channel amplified output, all in a small box, which can't be accomplished with Class AB amps, he explained.
  • . From a quality standpoint, however, Class AB amps have a leg up over Class D amps since they can deliver lower THD.
  • . TI's TAS5142/TAS5152 devices can handle up to 10 amps, versus only 3 amps from competing devices, Belnap said.


    Digital AMPS definition of Digital AMPS in computing dictionary - by the Free Online Dictionary, Thesaurus and Encyclopedia.
  • . TheFreeDictionary Google Word / Article Starts with Ends with Text subscription: Computing dictionary Digital AMPS Also found in: 0.01 sec.
  • . Mentioned in Computing browser Full browser Digital AMPS Digital AMPS TheFreeDictionary Google Word / Article Starts with Ends with Text Free Tools: For surfers: | For webmasters: | Copyright © 2005 All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.


    Amplifier Basics
  • . Class D for the so-called digital amps and Class T for Tripath's digital amplifiers.
  • . Class D amps are sometimes called digital amplifiers.
  • . Class T amps are a more refined switching amplifier developed by Tripath.
  • . Our current view is that advantage to using Class T and Class D amps is not to achieve better sound than can currently be achieved with standard A or A/B amplifiers.
  • . The Multiamps have two massive R-Core transformers that are specially built to offer the highest speed possible.
  • . What happens is that the signals between two amps are compared.


    YAMAHA YDA 137 YAMAHA Digital Amplifier IC Sample Shipments to Begin October 20 - YAMAHA Global Gateway
  • . All-in-one 5W/2-channel digital amplifier IC Analog signal input circuits, pulse width-modulation circuits (Note 2), bridge-tied load (BTL) output circuits (Note 3), self-oscillating circuits (Note 4), overcurrent protection circuits, pop-noise suppression circuits (Note 5), headphone amps, and other components necessary for digital amplifiers are combined in an extremely small 28-pin TSSOP.
  • . Since digital amps amplify power with on and off digital signals only, power efficiency is much higher than for analog amps.

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