The LT5520 is a high linearity, low power single chip RF upconverting mixer from LTC company. It works in the frequency range of 1.3GHz to 2.3GHz, supports single-ended LO input, and has an integrated LO buffer, RF output transformer, no external matching components, and an enable function with low off-state leakage current.
The LT5520 is a high‑linearity upconverting mixer designed for wireless and cable infrastructure applications. It integrates a double‑balanced mixer core, a high‑performance LO buffer, and on‑chip RF output transformer, eliminating the need for external matching components.
The document includes detailed electrical characteristics, absolute maximum ratings, pin descriptions, typical performance graphs, and application guidelines for designing with the LT5520 in RF front‑end modules.
| RF Output Frequency Range | 1.3 GHz to 2.3 GHz |
|---|---|
| IF Input Frequency Range | DC to 400 MHz |
| LO Input Frequency Range | 900 MHz to 2.7 GHz |
| Supply Voltage | 4.5 V to 5.25 V |
| Typical Input IP3 | 15.9 dBm at 1.9 GHz |
| Package | 16‑Lead Plastic QFN (4 mm × 4 mm) |
| Operating Temperature Range | -40 °C to 85 °C |
The device operates from 4.5 V to 5.25 V supply voltage.
The typical input IP3 is 15.9 dBm at 1.9 GHz.
It is supplied in a 16‑lead plastic QFN package measuring 4 mm × 4 mm.
The LT5520 can operate from –40 °C up to 85 °C.