The MAX2058 is a high linearity digital variable gain amplifier (DVGA) from Texas Instruments. It provides 62dB of total gain range and typical output IP3 and output P1dB levels of +32.3dBm and +19dBm, respectively. The device is ideal for a variety of applications, including RFID handheld and portal readers, as well as single and multicarrier 700MHz to 1200MHz GSM/EDGE, cdma2000®, WCDMA, and iDEN® base stations.
The MAX2058 is a 40‑pin thin‑QFN digital‑variable‑gain amplifier (DVGA) offering 62 dB of total gain control in 1 dB steps. It integrates two 5‑bit digital attenuators, a two‑stage driver, a loopback mixer for Tx/Rx self‑diagnostics, and a 3‑wire SPI/MICROWIRE interface.
Designed for GSM/EDGE, CDMA, WCDMA, iDEN base‑station transmitters and other broadband RF applications, the device operates from –40 °C to +85 °C and supports a supply voltage of 4.75 V‑5.25 V. Electrical performance is guaranteed across the 700 MHz‑1200 MHz RF band, with typical output IP3 of +32.3 dBm and 1 dB compression point of +19 dBm.
| RF Frequency Range | 700 MHz – 1200 MHz |
|---|---|
| Typical Output IP3 | +32.3 dBm |
| Typical Output 1 dB Compression Point | +19 dBm |
| Typical Small‑Signal Gain | 10.5 dB |
| Total Gain‑Control Range | 62 dB |
| Maximum SPI Clock Speed | 38 MHz |
It operates from 700 MHz to 1200 MHz.
The typical output third‑order intercept point is +32.3 dBm.
The device includes two independent 5‑bit digital attenuators.