General Description

The MAX2058 high-linearity digital-variable-gain amplifier (DVGA) is designed to provide 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 yields a high level of component integration, which includes two 5-bit, 31dB digital attenuators, 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.

Features

♦ +32.3dBm Typical Output IP3

♦ +19dBm Typical Output 1dB Compression Point

♦ 700MHz to 1200MHz RF Frequency Range

♦ 1800MHz to 2200MHz RF Frequency Range (MAX2059)

♦ 10.5dB Typical Small-Signal Gain

♦ Includes Two Independent 31dB Attenuator

   Stages, Yielding 62dB of Total Gain-Control Range with 1dB Steps

♦ 3-Wire SPI™/MICROWIRE™-Compatible

♦ Integrated Loopback Mixer for Tx/Rx Self Diagnostics

♦ +5V Single-Supply Operation

♦ External Current-Setting Resistors for Scalable Device Power

♦ Lead-Free Package Available

Applications

   GSM 850/GSM 900 2G and 2.5G EDGE Base Station Transmitters and Power Amplifiers

   Cellular cdmaOne™, cdma2000, and Integrated Digital Enhanced Network (iDEN) Base-Station Transmitters and Power Amplifiers

   WCDMA 850MHz and Other 3G Base-Station Transmitters and Power Amplifiers

   Transmitter Gain Control

   Receiver Gain Control

   Broadband Systems

   Automatic Test Equipment

   Digital and Spread-Spectrum Communication Systems

   Microwave Terrestrial Links

   RFID Handheld and Portal Readers