General Description

The MAX2059 high-linearity digital-variable-gain amplifier (DVGA) is designed to provide 56dB of total gain range and typical output IP3 and output P1dB levels of +31.8dBm and +18.4dBm, respectively. The device is ideal for a variety of applications, including single and multicarrier 1700MHz to 2200MHz DCS 1800/PCS 1900 EDGE, cdma2000®, WCDMA/UMTS, and TD-SCDMA base stations. The MAX2059 yields a high level of component integration, which includes two 5-bit digital attenuators, a two-stage driver amplifier, a loopback mixer, and a serial interface to control the attenuators.

The MAX2059 is pin compatible with the MAX2058 700MHz to 1200MHz DVGA, facilitating an easy design-in for applications where a common PC board layout is used for both frequency bands.

The MAX2059 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

♦ +31.8dBm Typical Output IP3

♦ +18.4dBm Typical Output 1dB Compression Point

♦ 1700MHz to 2200MHz RF Frequency Range

♦ 700MHz to 1200MHz RF Frequency Range (MAX2058)

♦ 10.9dB Typical Small-Signal Gain

♦ Includes Two Independent 5-Bit Digital Attenuator

   Stages, Yielding 56dB 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

   DCS 1800/PCS 1900 EDGE Base-Station Transmitters and Power Amplifiers

   cdmaOne™ and cdma2000 Base-Station Transmitters and Power Amplifiers

   WCDMA, TD-SCDMA, 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