The MAX19997A dual-channel down-conversion mixer is a general-purpose, highly integrated, and versatile down-converter that provides high linearity performance and low noise figure for 1800MHz to 2900MHz base station applications. The MAX19997A fully supports the low-end and high-end LO injection architectures in WiMAX ™, LTE, WCS, and MMDS wireless infrastructure applications from 2300MHz to 2900MHz. The low-end configuration provides 8.7dB gain, + 24dBm input IP3, and 10.3dB NF. The high-end configuration It can provide 8.7dB gain, + 24dBm input IP3 and 10.4dB NF. An additional tuning element (bypass inductor) is added to each RF port to further extend the range of high-end LO injection architecture down to 1800MHz. The device integrates an unbalanced transformer at the RF and LO ports. In addition, the device includes an LO buffer, two double balanced mixers, and a pair of differential IF output amplifiers. The MAX19997A requires a LO drive with a typical value of 0dBm, and the power supply current is guaranteed to be less than 420mA to achieve the expected linearity index. The MAX19997A is available in a compact 6mm x 6mm, 36-pin, thin QFN lead-free package with exposed pad. In the extended temperature range of TC = -40 ° C to + 85 ° C, electrical performance is guaranteed. Key features 1800MHz to 2900MHz RF frequency range 1950MHz to 3400MHz LO frequency range 50MHz to 500MHz IF frequency range Support low-end and high-end LO injection 8.7dB conversion gain + 24dBm input IP3 10.3dB noise figure + 11.3dBm input 1dB compression point 2 x 2 spurious suppression at 70dBc (typical) at PRF = -10dBm Dual channels are ideal for diversity receiver applications Integrated LO buffer Internal LO and RF baluns support single-ended input -3dBm to + 3dBm low LO drive Pin compatible with MAX19999 3000MHz to 4000MHz mixer Pins are similar to MAX9995 / MAX9995A and MAX19995 / MAX19995A 1700MHz to 2200MHz mixers and MAX9985 / MAX9985A and MAX19985 / MAX19985A 700MHz to 1000MHz mixers 42dB channel-to-channel isolation Use + 5.0V or + 3.3V single power supply External current setting resistor allows compromise selection of mixer's low power / low performance operating mode Welcome to reprint, this article comes from the electronic enthusiast network (http: //)
If you are new to the concept of using an electric
kettle, you might be overwhelmed by the variety of electric
kettles that are displayed on the store shelves and have difficulty deciding which one would be
the best to suit your individual needs or desires. This
introduction will give you some basic
information about some of the features that are available on
various types of electric kettles so that you can make a more informed decision
when choosing one for use in your home.
Features:
Spend few minutes to boil : After 5 minutes, hot water will
finish for you to drink.
3 protection functions : The on/off button is on the handle, making
it easy to turn the kettle off when you pick it up. A concealed heating unit reduces
the amount of buildup in the kettle.
It will be a problem when you forget to
close the button.Once the water boils the kettle shuts itself off.Do not have
to worry about damaging it by letting it run dry. When water runs dry,It will
cut the electric by itself.
Multiple Cups: Water can be loaded to
1.8Liter.
Materials :
Food grade stainless steel, more healthy
and hygienic. PP handle wieh heat insulation material provides scald
resistance. Durable controller performance with 360 degree rotation cordless
base design.
OEM & ODM service : Try
best to support you during production and provide better after-sales
service.Enhance your brand popularity.
Application:
Make a cup of tea.
Boil eggs.
Cook noodles.
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