The MAX19996A is a single, high-linearity downconversion mixer designed for 2000MHz to 3900MHz WCS, LTE, WiMAX, and MMDS wireless infrastructure applications. It provides 8.7dB conversion gain, +24.5dBm IIP3, and 9.8dB noise figure. The MAX19996A can be used in both low-side and high-side LO injection architectures for 2.5GHz and 3.5GHz applications. It integrates a double-balanced passive mixer core, an IF amplifier, and an LO buffer. On-chip baluns are also included to support single-ended RF and LO inputs. The MAX19996A is available in a compact 5mm x 5mm, 20-pin thin QFN package.
The MAX19996A is a SiGe high‑linearity downconversion mixer offering 8.7 dB conversion gain, +24.5 dBm IIP3 and a 9.8 dB noise figure across a 2000 MHz to 3900 MHz RF range. It integrates a double‑balanced passive mixer core, an IF amplifier, LO buffer and on‑chip baluns for single‑ended RF and LO inputs.
The device is supplied in a 20‑pin thin QFN‑EP package, operates from 3.3 V or 5.0 V supplies, and is rated for –40 °C to +85 °C. Detailed DC and AC electrical characteristics, absolute maximum ratings, and pin configuration are provided for both low‑side and high‑side LO injection architectures.
| RF Frequency Range | 2000 MHz to 3900 MHz |
|---|---|
| LO Frequency Range | 2100 MHz to 4000 MHz |
| IF Frequency Range | 50 MHz to 500 MHz |
| Conversion Gain | 8.7 dB |
| Noise Figure | 9.8 dB |
| Third‑Order Input Intercept Point (IIP3) | +24.5 dBm |
| 1 dB Compression Point | 11 dBm |
| Supply Voltage | 5.0 V (or 3.3 V) |
| Supply Current (5 V) | 230 mA |
| Supply Current (3.3 V) | 150 mA |
| Package Type | 20‑pin thin QFN‑EP |
| Operating Temperature Range | -40 °C to +85 °C |
The device requires a nominal LO drive of 0 dBm.
Typical supply current is 230 mA at a 5 V supply.
It is offered in a 20‑pin thin QFN‑EP package with an exposed pad.
The mixer is rated for operation from –40 °C to +85 °C.