The MAX2056 is a high-performance variable-gain amplifier (VGA) designed to operate in the 800MHz to 1000MHz frequency range. It features 15.5dB of gain, 4.5dB of noise figure, and an output 1dB compression point of 23.5dBm. The MAX2056 also provides an exceptionally high OIP3 level of 39dBm, which is maintained over the entire attenuation range. In addition, the on-chip analog attenuators yield infinite control and high attenuation accuracy over selectable 22dB or 44dB control ranges. Each of these features makes the MAX2056 an ideal VGA for cellular band GSM, cdma2000, W-CDMA, and iDEN transmitter and power amplifier AGC circuits.
The MAX2056 is a general‑purpose, high‑performance variable‑gain amplifier (VGA) designed for the 800 MHz to 1000 MHz frequency range. It delivers up to 15.5 dB typical gain, a low 4.5 dB noise figure, and a constant OIP3 of 39 dBm across its gain range. The device operates from a single +5 V supply and is offered in a compact 36‑pin thin QFN package.
Typical applications include GSM, cdma2000, W‑CDMA and iDEN base‑station transmitters and power‑amplifier AGC circuits, as well as broadband systems, test equipment and microwave terrestrial links. The datasheet provides absolute maximum ratings, DC and AC electrical characteristics, typical operating curves, and layout recommendations.
| Frequency Range | 800 MHz – 1000 MHz |
|---|---|
| Typical Gain | 15.5 dB |
| Noise Figure | 4.5 dB |
| OIP3 | 39 dBm |
| Supply Voltage | 4.75 V – 5.25 V |
| Gain‑Control Voltage Range | 1.0 V – 4.5 V |
| Package | 36‑pin thin QFN (6 mm × 6 mm × 0.8 mm) |
The MAX2056 operates from 800 MHz to 1000 MHz.
It requires a supply voltage between 4.75 V and 5.25 V.
The typical gain at maximum setting is 15.5 dB.
The device provides a constant OIP3 of 39 dBm across all gain settings.