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The LDS line of linear and digital switching amplifiers offer energy efficient and robust operation for power requirements up to 280 kVA.
Power Amplifier Features
Modular power amplifiers from 8 to 280 kVA use fast switching IGBT technology and deliver excellent distortion at low power level
High efficiency maximizes the performance capabilities of the shaker and reduces operating costs
Peak current rating of 3-sigma meets ISO standards
Amplifier Controller Software coordinates power amplifier and shaker controller Operation
A range of safety features protects operators, test specimens, and the vibration test system
Low cost, single-phase linear power amplifiers for permanent magnet shakers
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The MMG3012NT1 is a General Purpose Amplifier that is internally input matched and internally output matched. It is designed for a broad range of Class A, small–signal, high linearity, general purpose applications. It is suitable for applications with frequencies from 0 to 6000 MHz such as Cellular, PCS, BWA, WLL, PHS, CATV, VHF, UHF, UMTS and general small–signal RF.
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RF power transistors are used whenever an electromagnetic signal needs to be amplified and transmitted from an antenna.
Today ST offers a broad range portfolio, from LDMOS transistors for cellular intrastructure and private mobile radio to DMOS for industrial applications and TV broadcast.
A broad package range, from SMD plastic to standard gold ceramic, gives customers great flexibility.
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General Description
The RMPA1766 Power Amplifier Module (PAM) is Fairchild's latest innovation in 50Ohm matched, surface mount modules targeting UMTS/WCDMA/HSDPA applications. Answering the call for ultra- low DC power consumption and extended battery life in portable electronics, the RMPA1766 uses novel proprietary circuitry to dramatically reduce amplifier current at low to medium RF output power levels (<+16dBm), where the handset most often operates. A simple two- state Vmode control is all that is needed to reduce operating current by more than 60% at 16dBm output power, and quiescent current (Iccq) by as much as 70% compared to traditional power- saving methods. No additional circuitry, such as DC- to- DC converters, are required to achieve this remarkable improvement in amplifier efficiency. Further, the 4 x 4 x 1.0 mm LCC package is pin- compatible and a drop- in replacement for last generation 4 x 4 mm PAMs widely used today, minimizing the design time to apply this performance- enhancing technology. The multi- stage GaAs Microwave Monolithic Integrated Circuit (MMIC) is manufactured using Fairchild HBT process.
Features
- 40% WCDMA efficiency at 28dBm Pout
- 20% WCDMA efficiency (58mA total current) at 16dBm Pout
- Low quiescent current (Iccq): 25mA in low-power mode
- Meets HSDPA performance requirements
- Single positive-supply operation with low power and shutdown modes
* 3.4V typical Vcc operation
* Low Vref (2.85V) compatible with advanced handset chipsets
- Compact Lead-free compliant LCC package - (4.0 x 4.0 x 1.0mm nominal)
- Industry standard pinout
- Internally matched to 50 Ohm and DC blocked RF input/output
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Linear Technology manufactures a broad line of high performance operational amplifiers (op amps) each one designed for the unexpected. Fully specified over temperature, look to Linear for signal conditioning solutions when performance matters. Amplifier product families include high speed amplifiers, precision amplifiers, low noise amplifiers, and micropower amplifiers as well as special function amplifiers such as current sense, programmable gain and differentail high speed analog to digital converter (ADC) drivers.
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A family of RF power detector integrated in loop controllers for PA power control applications in cellular handsets.
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