Maxim Integrated MAX2023
The MAX2023 low-noise, high-linearity, direct upconversion/downconversion quadrature modulator/demodulator is designed for single and multicarrier 1500MHz to 2300MHz DCS 1800/PCS 1900 EDGE, cdma2000 ® , WCDMA, and PHS/PAS base-station applications. This device includes two matched passive mixers for modulating or demodulating in-phase and quadrature signals, two LO mixer amplifier drivers, and an LO quadrature splitter. In addition to offering excellent linearity and noise performance, the MAX2023 also yields a high level of component integration.
| Part No. |
MAX2023 |
| Datasheet |
MAX2023
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| Manufacturer |
 Maxim Integrated |
| Description |
High Dynamic Range Direct Up-/Down Conversion |
| Buy |
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GENERAL DESCRIPTION
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. 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 MAX2023 operates from a single +5V supply. It is available in a compact 36-pin thin QFN package (6mm x 6mm) with an exposed paddle. Electrical performance is guaranteed over the extended -40°C to +85°C temperature range. FEATURES
o 1500MHz to 2300MHz RF Frequency Range o Scalable Power: External Current-Setting Resistors Provide Option for Operating Device in Reduced-Power/Reduced-Performance Mode o 36-Pin, 6mm x 6mm TQFN Provides High Isolation in a Small Package Modulator Operation: o Meets GSM Spuriou...
