MAX2057 is a high-performance variable-gain amplifier produced by Texas Instruments. It operates in the frequency range of 1700MHz to 2500MHz, has a gain of 15.5dB, a noise figure of 6dB, and an output 1dB compression point of 23.8dBm. OIP3 is as high as 37dBm, and it can provide 21dB or 42dB selectable attenuation ranges.
The MAX2057 is a general‑purpose, high‑performance variable‑gain amplifier (VGA) designed for the 1700 MHz to 2500 MHz frequency range. It operates from a single +5 V supply and is offered in a compact 36‑pin thin QFN package (6 mm × 6 mm × 0.8 mm) with an exposed paddle.
Typical applications include DCS/PCS, CDMA2000, W‑CDMA, PHS/PAS base‑station transmitters and power‑amplifier AGC circuits, as well as broadband and microwave communication systems. The device provides two selectable gain‑control ranges (21 dB or 42 dB) and features low noise (6 dB NF) and high linearity (37 dBm OIP3).
| Frequency Range | 1700 MHz – 2500 MHz |
|---|---|
| Typical Gain (max setting) | 15.5 dB |
| Noise Figure (max gain) | 6 dB |
| Output 1 dB Compression Point | 23.8 dBm |
| OIP3 (constant) | 37 dBm |
| Supply Voltage | 4.75 V – 5.25 V |
| Gain‑Control Voltage Range | 1.0 V – 4.5 V |
| Gain‑Control Ranges | 21 dB or 42 dB |
The device operates from a single +5 V supply with a voltage range of 4.75 V to 5.25 V.
At maximum gain the typical gain is 15.5 dB.
Two gain‑control ranges are available: a 21 dB range and a 42 dB range.