LTC5589IUF#PBF

LTC5589 is a direct conversion I/Q modulator designed for low power wireless applications that enables direct modulation of differential baseband I and Q signals on an RFcarrier. Single side-band modulation or side-band suppressed upconversion can be achieved by applying 90° phase-shifted signals to the I and Q inputs. The I/Q baseband input ports can be either AC or DC coupled to a source with a common mode voltage level of about 1.4V. The SPI interface controls the supply current, modulator gain, and allows adjustments of I and Q gain and phase imbalance to optimize the LO carrier feed through and side-band suppression. The LO port can be driven with sine wave or square wave LO drive. A fixed LC network on the LO and RF ports covers 700MHz to 6GHz operating range. It is used in applications such as wireless microphones, battery powered radios, vector modulator, 2.45GHz and 5.8GHzt transmitters, software defined radios (SDR), military radios etc.

• Frequency range from 700MHz to 6GHz
• Supply voltage range from 2.7V to 3.6V
• 1dB baseband bandwidth is 43MHz typ at (RSOURCE = 50 ohm, differential)
• Side-band suppression is -50dBc typ at (TC = 25°C, VCC = 3.3V)
• Output 3rd order intercept is 19.9dBm typ at (TC = 25°C, VCC = 3.3V)
• RF output noise floor is -159.6dBm/Hz typ at (TC = 25°C, VCC = 3.3V)
• Sine wave or square wave LO drive
• I/Q gain/phase adjust is -61dBc side-band suppressed
• Operating temperature range from -40°C to 105°C
• Package style is 24-lead plastic QFN

Notes

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