With the increasing speed of data transmission, line reflections provide signal distorsions and the overshootsor undershootsproduced on the signal edges can cause the malfunction of the whole system.
To avoid these negative effects from leading to problems, a suitable termination is required. Dedicated to bus termination, the RCD16-47B provides by far the best method to minimise stray emissions from PCB tracks.
■ NETWORK OF16R-C-D LINETERMINATIONS
■ RESISTANCE : R = 47 Ω, TOLERANCE +/- 10%
■ CAPACITANCE: C =33 pF,TOLERANCE+/-10%
■ SCHOTTKY DIODE : (D)
■ Provides impedance matching, thus increasing noise immunity and minimizing distortion.
■ Lowers EMI / RFI radiation.
■ No DC power dissipation.
■ Eliminates negative voltages : no current will change the bias of the protected device.
■ Uses the best of all termination schemes.
In any electronic equipment where a suitable bus terminationis requiredto avoidsignalreflectionsand distortions:
■ PC and workstation computer
■ Data-line analyzers