TRF3710IRGZT

IQ解调器 IQ DEMODULATOR

DESCRIPON

The TRF3710 is a highly linear and integrated direct-conversion quadrature demodulator optimized for third-generation 3G wireless infrastructure. The TRF3710 integrates balanced I and Q mixers, LO buffers, and phase splitters to convert an RF signal directly to I and Q baseband. The on-chip programmable-gain amplifiers allow adjustment of the output signal level without the need for external variable-gain attenuator devices. The TRF3710 integrates programmable baseband low-pass filters that attenuate nearby interference, eliminating the need for an external baseband filter.

FEATURES

• Frequency Range: 1.7 GHz to 2 GHz

• Integrated Baseband Programmable-Gain Amplifier

• On-Chip Programmable Baseband Filter

• High Cascaded IP3: 21 dBm at 1.9 GHz

• High IP2: 60 dBm at 1.9 GHz

• Hardware and Software Power Down

• 3-Wire Serial Programmable Interface

• Single Supply: 4.5-V to 5.5-V Operation

APPLICATIONS

• Wireless Infrastructure:

– WCDMA

– CDMA

• Wireless Local Loop

• High-Linearity Direct Downconversion Receiver