Analog Devices MAX2022 Product Info

• 1500MHz to 3000MHz RF Frequency Range
• 1500MHz to 3000MHz LO Frequency Range
• Scalable Power: External Current-Setting Resistors Provide Option for Operating Device in Reduced-Power/Reduced-Performance Mode
• 36-Pin, 6mm x 6mm TQFN Provides High Isolation in a Small Package
• Modulator Operation: (2140MHz):
  • Meets Four-Carrier WCDMA 65dBc ACLR
  • 23.3dBm Typical OIP3
  • 51.5dBm Typical OIP2
  • 45.7dBc Typical Sideband Suppression
  • -40dBm Typical LO Leakage
  • -173.2dBm/Hz Typical Output Noise, Eliminating the Need for an RF Output Filter
  • Broadband Baseband Input
  • DC-Coupled Input Provides for Direct Launch DAC Interface, Eliminating the Need for Costly I/Q Buffer Amplifiers
• Demodulator Operation (1890MHz):
  • 39dBm Typical IIP3
  • 58dBm Typical IIP2
  • 9.2dB Typical Conversion Loss
  • 9.4dB Typical NF

The MAX2022 low-noise, high-linearity, direct conversion quadrature modulator/demodulator is designed for single and multicarrier 1500MHz to 3000MHz UMTS/WCDMA, LTE/TD-LTE, cdma2000^®, and DCS/PCS base-station applications. Direct conversion architectures are advantageous since they significantly reduce transmitter or receiver cost, part count, and power consumption as compared to traditional IF-based double conversion systems.

In addition to offering excellent linearity and noise performance, the MAX2022 also yields a high level of component integration. This device includes two matched passive mixers for modulating or demodulating in-phase and quadrature signals, three LO mixer amplifier drivers, and an LO quadrature splitter. On-chip baluns are also integrated to allow for single-ended RF and LO connections. As an added feature, the baseband inputs have been matched to allow for direct interfacing to the transmit DAC, thereby eliminating the need for costly I/Q buffer amplifiers.

The MAX2022 operates from a single +5V supply. It is available in a compact 36-pin TQFN package (6mm x 6mm) with an exposed paddle. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range.

Applications

• Digital and Spread-Spectrum Communication Systems
• Fixed Broadband Wireless Access
• Microwave Links
• Military Systems
• PHS/PAS Base Stations
• Predistortion Transmitters
• Private Mobile Radios (PMRs)
• Single and Multicarrier cdmaOne™ and cdma2000® Base Stations
• Single and Multicarrier DCS 1800/PCS 1900 EDGE Base Stations
• Single and Multicarrier WCDMA/UMTS, and LTE/TDLTE Base Stations
• Wireless Local Loop (WLL)