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RF2498PCBA-41X 数据手册 ( 数据表 ) - RF Micro Devices

RF2498PCBA-41X image

零件编号
RF2498PCBA-41X

产品描述 (功能)

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22 Pages

File Size
869.3 kB

生产厂家
RFMD
RF Micro Devices 

Product Description
The RF2498 is a high performance CDMA tri-band/quad-mode integrated LNA/mixer with GPS capability. The device is designed to meet all IS-98 sensitivity, intermodulation and single-tone requirements. The RF2498 integrates the tri-band LNA/downconverters with 27.5dB of gain control for the cellular band and 29dB for the PCS band. The RF2498 is designed for three state gain control solutions for IS-98 IMD testing. The device offers a dedicated GPS LNA/mixer with 37dB of gain. Additionally, a divide-by-2 prescaler to allow the use of either a single- or dual-band VCO is integrated. There is also a TX LO buffer. The design is flexible, in that the bias currents may be set using off-chip current reference resistors for the mixer and LNA blocks. The device is packaged in a plastic, 5mmx5mm, leadless chip carrier.


FEATUREs
■ GPS Receive Front-End Gain=37dB
■ Meets IMD Tests with Three Gain States/Two Logic Control Lines
■ Adjustable Mixer and LNA Bias Current
■ Selectable Divide-by-2 Prescaler
■ Integrated TX LO Buffer Amplifier


APPLICATIONs
■ CDMA/Cellular/PCS/GPS Handsets
■ JCDMA/GPS Handsets
■ CDMA Modem/Data Cards
■ Commercial and Consumer Systems
■ Portable Battery-Powered Equipment

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