AD8346ARUZ

AD8346 is a silicon RFIC I/Q modulator. Its excellent phase accuracy and amplitude balance allow high performance direct modulation to RF. The differential LO input is applied to a polyphase network phase splitter that provides accurate phase quadrature from 0.8GHz to 2.5GHz. Buffer amplifiers are inserted between two sections of the phase splitter to improve the signal-to-noise ratio. The I and Q outputs of the phase splitter drive the LO inputs of two Gilbert-cell mixers. Two differential V-to-I converters connected to the baseband inputs provide the baseband modulation signals for the mixers. The outputs of the two mixers are summed together at an amplifier which is designed to drive a 50 ohm load. It is used in application such as digital and spread spectrum communication systems, cellular/PCS/ISM transceivers, wireless LAN/wireless local loop, QPSK/GMSK/QAM modulators, single-sideband (SSB) modulators, frequency synthesizers, image reject mixer etc.

• Sideband suppression is -46dBc at 0.8GHz
• Modulation bandwidth is 70MHz typical
• 0dBm output compression level at 0.8GHz
• Noise floor is -147dBm/Hz typical
• Single supply operation is 2.7V to 5.5V
• Quiescent operating current is 45mA typical
• Standby current is 1μA typical
• Quadrature phase error is 1°rms typical
• Operating temperature is -40°C to +85°C
• Package style is 16-lead (TSSOP)

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ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party