ZHCSH86B December 2017 – February 2019 LMH5401-SP
PRODUCTION DATA.
The standard EVM is used with RCM+ and RCM– removed and a new resistor installed at RTCM = 49.9 Ω. The
49.9-Ω resistor is placed at R14 on the EVM schematic. A network analyzer is connected to the VCM input of the EVM and the EVM outputs are connected to the network analyzer with 50-Ω coaxial cables. Set the network analyzer analysis settings to single-ended input and differential output. Measure the output common-mode with respect to the single-ended input (Scs21). The input signal frequency is swept with the signal level set for 100 mV (–16 dBm). Note that the common-mode control circuit gain is one.