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ANALOG DEVICES LT5546EUF#PBF

RF IC, I/Q Demodulator, 40 to 500 MHz, 1.8 to 5.25 V Supply, -40 to 85 °C, QFN-EP-16

ANALOG DEVICES LT5546EUF#PBF

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Manufacturer Part No:
LT5546EUF#PBF
Order Code:
4030210
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Technical Datasheet:
LT5546EUF#PBF   Datasheet
ECAD / MCAD
Supply Frame Models Link
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Product Overview

LT5546 is a 40MHz to 500MHz monolithic integrated quadrature demodulator with variable gain amplifier (VGA) and 17MHz I/Q baseband bandwidth designed for low voltage operation. It supports standards that use a linear modulation format. The chip consists of a VGA, quadrature down converting mixers and 17MHz lowpass noise filters (LPF). The LO port consists of a divide-by-two stage and LO buffers. The IC provides all building blocks for IF down conversion to I and Q baseband signals with a single supply voltage of 1.8V to 5.25V. The VGA gain has a linear in-dB relationship to the control input voltage. Hard-clipping amplifiers at the mixer outputs reduce the recovery time from a signal overload condition. The lowpass filters reduce the out-of-band noise and spurious frequency components. It is widely used in applications such as GPS IF receivers, satellite IF receivers, VHF/UHF receivers, wireless local loop etc.
  • I/Q amplitude imbalance is 0.14dB typical at (VCC = 3V, f2xLO = 570MHz)
  • IF overload detector
  • Log linear gain control range from -7dB to 56dB
  • Noise figure at max gain is 7.8dB typical at (VCTRL = 1.7V, VCC = 3V, f2xLO = 570MHz)
  • Low supply current is 24mA typ at (EN = high, STBY = low or high)
  • Low delay shift over gain control range is 2ps/dB typ at (VCC = 3V, f2×LO = 570MHz)
  • Outputs biased up while in standby
  • Operating temperature range from -40°C to 85°C
  • Package style is 16-lead plastic QFN

Footnotes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party

Product Information

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:
40MHz

:
500MHz

:
1.8V

:
5.25V

:
QFN-EP

:
16Pins

:
-40°C

:
85°C

:
-

:
MSL 1 - Unlimited

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Technical Documents (1)

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