LM95235EVAL National Semiconductor, LM95235EVAL Datasheet - Page 25

Manufacturer Part Number

LM95235EVAL

Description

Manufacturer

National Semiconductor

Datasheet

1.LM95235EVAL.pdf (28 pages)

Lead Free Status / RoHS Status

Supplier Unconfirmed

the SMBus maximum frequency of communication is rather

low (100 kHz max), care still needs to be taken to ensure

proper termination within a system with multiple parts on the

bus and long printed circuit board traces. An RC lowpass filter

with a 3 dB corner frequency of about 40 MHz is included on

the LM95235's SMBCLK input. Additional resistance can be

added in series with the SMBDAT and SMBCLK lines to fur-

ther help filter noise and ringing. Minimize noise coupling by

keeping digital traces out of switching power supply areas as

well as ensuring that digital lines containing high speed data

communications cross at right angles to the SMBDAT and

SMBCLK lines.