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Product description

The LT5519EUF is a 0.7GHz to 1.4GHz high linearity up-conversion mixer designed to meet the high linearity requirements of wireless and cable infrastructure launch systems ‌‌. The LT5519EUF incorporates a high-speed, internally 50Ω matched LO amplifier to drive a double-balanced mixer core, allowing the use of a low-power, single-ended LO source. In addition, the LT5519EUF incorporates an RF output transformer, eliminating the need to add external matching components to the RF output while reducing system cost, component count, board area, and system-level variation. The IF port can be easily matched to a wide frequency range for many different applications.

When the IF input signal level is -10 dBm, the LT5519EUF mixer delivers a typical input third-order intercept point of +17.1dBm at 1GHz. The input 1dB compression point is usually +5.5dBm. The LT5519EUF mixer requires a single 5V power supply.

LT5519EUF application diagram

Features

1. ‌ high linearity design ‌

Designed for wireless and wireline infrastructure transmission systems, the LT5519EUF provides a typical input third-order interception point (IP3) of +17.1dBm at 1GHz with an input 1dB compression point of +5.5dBm for high dynamic range scenarios ‌.

Integrated double balanced mixer core, support single-ended LO (local oscillator) input, only -5 DBM drive level to achieve stable work ‌.

2. ‌ highly integrated architecture ‌

The LT5519EUF has a built-in 50Ω matched LO amplifier and RF output transformer, eliminating the need for external matching components and significantly reducing system cost and PCB area ‌.

The IF port supports wide frequency matching (700MHz to 1.4GHz), suitable for various signal chain configurations ‌.

3. ‌ Low power consumption and ease of use ‌

Single 5V power supply, typical working current 70mA, compatible with industrial power supply system ‌.

Adopts the QFN-16 package (4mm x 4mm) to meet the requirements of high-density circuit board layout ‌.

Typical application scenario ‌

1. ‌ wireless communication infrastructure ‌

LT5519EUF is widely used in base station upconverter, repetor equipment, support 3G/4G/LTE band signal processing, improve the transmission link linearity ‌.

In 5G small base stations, the broadband characteristics of the LT5519EUF can be adapted to the Sub-6GHz frequency band ‌.

‌2. Wired transmission system ‌

As a cable downlink mixer, the LT5519EUF achieves high-fidelity signal conversion in digital television broadcasting, fiber optic node equipment ‌.

3. ‌ Test and military equipment ‌

Integrated into spectrum analyzers and vector signal generators, the LT5519EUF's low noise factor (13.6dB) guarantees precise measurement accuracy ‌.

For use in tactical communications systems, the LT5519EUF meets the need for anti-interference in harsh electromagnetic environments ‌.

LT5519EUF Key parameters

Operating frequency: 700MHz ~ 1.4GHz

Mixing gain: -0.6dB (typical)

Power supply range: 4.5V ~ 5.25V

Package type: QFN-16 (with cooling pad)

For pricing of LT5519EUF products, please contact:

Official website: www.hkmjd.com

Email: sales@hkmjd.com

Tel: +86 13410018555 (Mr. Chen)