FAQ: Residual Phase Noise of ADL5602

A:

Figure 1 shows the residual phase noise of ADL5602, measured at an output power of 19.3 dBm (P1dB, P_IN = 1.3 dBm) at 2 GHz. Figure 2 shows the baseline phase noise of the measurement setup.  At carrier offset frequencies below 1 KHz, the measurement is dominated by the baseline phase noise of the measurement setup, suggesting that the device's residual phase noise may be better than what is shown in the measurement.

Figure 1. ADL5602 Residual Phase Noise, P_OUT = 19.3 dBm (P1dB, P_IN = 1.3 dBm) at 2 GHz

Figure 2. Baseline phase noise of measurement setup

* V_DD = 5 V, I_DD = 89 mA

A:

Figure 1 shows the residual phase noise of ADL5602, measured at an output power of 19.3 dBm (P1dB, P_IN = 1.3 dBm) at 2 GHz. Figure 2 shows the baseline phase noise of the measurement setup.  At carrier offset frequencies below 1 KHz, the measurement is dominated by the baseline phase noise of the measurement setup, suggesting that the device's residual phase noise may be better than what is shown in the measurement.

Figure 1. ADL5602 Residual Phase Noise, P_OUT = 19.3 dBm (P1dB, P_IN = 1.3 dBm) at 2 GHz

Figure 2. Baseline phase noise of measurement setup

* V_DD = 5 V, I_DD = 89 mA