Analog Devices Broadband Direct Conversion Transmitter Evaluation Board EVAL-CN0285-EB1Z

Evaluation Boards for Broadband Direct Conversion Transmitter

These evaluation boards are complete implementations of the analog portion of a broadband direct conversion transmitter (analog baseband in, RF out). RF frequencies from 500MHz to 4.4GHz are supported using a phase-locked loop (PLL) with a broadband, integrated voltage controlled oscillator (VCO). Harmonic filtering of the local oscillator (LO) from the PLL ensures excellent quadrature accuracy and low EVM. Low noise, Low Dropout Regulators (LDOs) ensure that the power management scheme has no adverse impact on phase noise and EVM.
EVAL-CN0285-EB1Z (785-8626) uses the ADF4351 PLL Synthesizer with 35 to 4400 MHz output frequency range.
CFTL-CN0134-EVALZ (803-1358) uses the ADF4350 PLL Synthesizer with 138 to 4400 MHz output frequency range.

Devices Connected/Referenced

ADF4350/ADF4351 Fractional-N PLL IC with Integrated VCO
ADL5375 Wideband Transmit Modulator
ADP150 Low Noise 3.3V LDO
ADP3334 Low Noise Adjustable LDO

RF & Microwave, Analog Devices

Circuit Note CN-0285: Broadband Low Error Vector Magnitude (EVM) Direct Conversion Transmitter