The MAX2043 is a high-performance single-chip passive up/down converter mixer from Texas Instruments. It operates in the frequency range of 1700MHz to 3000MHz and has a LO frequency range of 1900MHz to 3000MHz. It features high linearity, low noise, and high integration. It is suitable for UMTS/WCDMA, DCS, PCS, and WiMAX base station applications.
The MAX2043 is a high‑linearity passive up‑ or down‑converter mixer designed for base‑station Rx/Tx applications such as UMTS, WCDMA, PCS, DCS, WiMAX and point‑to‑point microwave links. It integrates RF and LO baluns, a dual‑input LO‑selectable switch, an LO buffer and a double‑balanced mixer in a 36‑pin thin QFN package.
The device offers a typical IIP3 of +31 dBm, conversion loss of 7.5 dB, noise figure of 7.8 dB, and LO leakage of –52 dBm. It operates from –40 °C to +85 °C with a single‑supply voltage of 5 V and typical supply current of 108 mA.
| RF Frequency Range | 1700 MHz – 3000 MHz |
|---|---|
| LO Frequency Range | 1900 MHz – 3000 MHz |
| IF Frequency Range | DC – 350 MHz |
| Conversion Loss (typical) | 7.5 dB |
| Noise Figure (typical) | 7.8 dB |
| 3rd‑Order Input Intercept Point (IIP3) | +31 dBm |
| LO Leakage (RF port) | -52 dBm |
| Supply Voltage | 4.75 V – 5.25 V |
| Supply Current (typical) | 108 mA |
| Operating Temperature Range | -40 °C to +85 °C |
The MAX2043 provides a typical third‑order input intercept point of about +31 dBm.
It is offered in a 36‑pin thin QFN package (6 mm × 6 mm) with an exposed paddle, with lead‑free and tape‑and‑reel options.
The device is rated for operation from –40 °C to +85 °C.