The ADL5375-05-EVALZ is a fully populated, 4-layer, FR4 based evaluation board for ADL5375 device, 400MHz to 6GHz broadband quadrature modulator. For normal operation, it requires a 5V/500mA power supply. The 5V power supply should be connected to the clip leads labelled VPOS and GND. The LO and baseband inputs (which should be biased at 0.5V) are applied to edge mounted SMA-type RF connectors. The ADL5375 output drives the ADL5320 driver amplifier with its output and is available at the SMA connector labelled AMP_OUT. The ADL5375's output can be accessed directly at the SMA connector labelled AMP_IN/SMA_OUT (remove R2 and install zero ohms in R1). The evaluation board also includes options to drive the LO differentially through a balun along with pads that can be used to implement a harmonic filter in the LO path.
- Output frequency ranges from 400MHz to 6GHz
- 1dB output compression of >=9.4dBm from 450MHz to 4GHz
- Output return loss of <= 12dB from 450MHz to 4.5GHz
- Noise floor of -160dBm/Hz @ 900MHz
- Sideband suppression of <=-50dBc @ 900MHz
- Carrier feedthrough of <=-40dBm @ 900MHz
- IQ3dB bandwidth is >= 750MHz
- Baseband input bias level of 1500mV
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