The MAX2058 is a high-linearity digital-variable-gain amplifier (DVGA) from Texas Instruments. It provides a 62dB 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 provides a high level of component integration, including two 5-bit, 31dB digital attenuators, two diodes, a two-stage driver amplifier, a loopback mixer, and a serial interface to control the attenuators. The MAX2058 is pin compatible with the MAX2059 1800MHz to 2200MHz DVGA, facilitating an easy design-in for applications where a common PC board layout is used for both frequency bands. The MAX2058 is available in a 40-pin thin QFN package with an exposed paddle. Electrical performance is guaranteed over a -40°C to +85°C temperature range.
The MAX2058 is a high‑linearity digital‑variable‑gain amplifier (DVGA) offering a total gain range of 62 dB with 1 dB steps. It integrates two 5‑bit digital attenuators, a two‑stage driver amplifier, a loopback mixer, and a 3‑wire SPI/MICROWIRE‑compatible serial interface for precise gain control.
Designed for base‑station transmitter applications, the device operates over 700 MHz to 1200 MHz RF frequencies (and 40 MHz to 100 MHz LO) and delivers typical performance of +32.3 dBm output IP3 and +19 dBm output 1 dB compression point. It is supplied in a 40‑pin thin‑QFN package and supports a single‑supply voltage of 4.75 V to 5.25 V.
| Total Gain Range | 62 dB |
|---|---|
| RF Frequency Range | 700 MHz to 1200 MHz |
The MAX2058 provides a total gain range of 62 dB with 1 dB step size.
The device works over 700 MHz to 1200 MHz for RF signals.