ZHCSJ48F December 2016 – December 2018 TDA2P-ABZ
ADVANCE INFORMATION for pre-production products; subject to change without notice.
To minimize EMI emissions, add decoupling capacitors with a ferrite bead at power supply terminals for the analog, phase-locked loop (PLL), and digital portions of the chip. Place this array as close to the chip as possible to minimize the inductance of the line and noise contributions to the system. An analog and digital supply example is shown in Figure 7-30. In case of multiple power supply pins with the same function, tie them up to a single low-impedance point in the board and then add the decoupling capacitors, in addition to the ferrite bead. This array of caps and ferrite bead improve EMI and jitter performance. Take both EMI and jitter into account before altering the configuration.
Consider the recommendations listed below to achieve proper ESD/EMI performance: