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News
300MHz to 9GHz High Linearity I/Q Demodulator Supports 1GHz Bandwidth & Achieves up to 60dB Image Rejection
2018-02-22 | Returnimage rejection, the linearity performance including IP2 (2nd order intercept), HD2 (2nd order harmonic distortion), HD3 (3rd order harmonic distortion), and IIP3 can also be optimized. Moreover, the output DC offset voltage can be nulled via the serial port to allow DC coupling to the ADC for true ZIF operation. Once calibrated at room temperature, these performance metrics are remarkably stable at cold or hot, right up to the rated temperature extremes from –40°C to 105°C case.
The LTC5594 is ideally suited for 5G microwave wireless infrastructure platforms that require 1GHz or more bandwidth, and dynamic range performance to support the high order modulation and gigabit data rates required. In addition, the device benefits other applications such as broadband microwave point-to-point backhaul, high performance GPS systems, satellite communications, aircraft avionics, RF test equipment and radar systems. Its superb linearity and image rejection performance are particularly compelling for DPD (digital pre-distortion) receiver applications.
The LTC5594 is offered in a 32-lead, 5mm x 5mm plastic QFN package. The demodulator is powered from a single 5V supply, drawing a nominal 470mA current. The baseband amplifiers can be selectively disabled, so the demodulator can run on 250mA current. An enable pin allows an external controller to shut down the device. When disabled, the device typically draws 20μA supply current. Samples and production quantities are available immediately.
Summary of Features: LTC5594
。Matched RF Input Frequency 500MHz to 9GHz
。I & Q Baseband Bandwidth (1dB) 1GHz
。 Image Rejection 37dB Typical
With Calibration 60dB Typical
。High Output IP3 37dBm at 5.8GHz
。Adjustable Gain 8dB in 1dB Steps
。Max Power Gain 9.2dB @5.8GHz
Pricing & Availability
Product |
Production Availability |
Price Each Per 1,000 |
Package |
LTC5594 |
Now |
Starts at $15.70 |
32-Lead, 5mm x 5mm Plastic QFN |
Source:http://www.linear.com/