700MHz to 1200MHz High-Linearity, SPI-Controlled DVGA with Integrated Loopback Mixer

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.

Applications

* Automatic Test Equipment * Broadband Systems * Cellular cdmaOne™, cdma2000, and Integrated Digital Enhanced Network (iDEN) Base-Station Transmitters and Power Amplifiers * Digital and Spread-Spectrum Communication Systems * GSM 850/GSM 900 2G and 2.5G EDGE Base-Station Transmitters and Power Amplifiers * Microwave Terrestrial Links * Receiver Gain Control * RFID Handheld and Portal Readers * Transmitter Gain Control * WCDMA 850MHz and Other 3G Base-Station Transmitters and Power Amplifiers

* +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