LTC4304

11

4304fa

Figure 4 shows the LTC4304 in a PCI application where all

of the pins have the same length. In this case, a RC filter

circuit on the I/O card with a product of 10ms provides a

R3

100k

4304 F04

R9

10k

R8

10k

R10

10k

R12

10k

I/O PERIPHERAL CARD 2

CARD2_SCL

CARD2_SDA

R5

10k

R4

10k

I/O PERIPHERAL CARD 1

CARD1_SCL

CARD1_SDA

R1

10k

R2

10k

BACKPLANE

BACKPLANE

CONNECTOR

SDA

SCL

C1

0.01

µF

C2

0.1

µF

C3

0.01

µF

R6

10k

•

•

•

R7

100k

C4

0.1

µF

R11

10k

ENABLE

SDAIN

SCLIN

ACC

GND

SDAOUT

SCLOUT

READY

FAULT

LTC4304

ENABLE

SDAIN

SCLIN

ACC

GND

SDAOUT

SCLOUT

READY

FAULT

LTC4304

Figure 4. Inserting Multiple I/O Cards into a Live Backplane Using the LTC4304 in a PCI System

filter to prevent the LTC4304 from becoming activated until

the transients associated with live insertion have settled.

Connect the capacitor between ENABLE and GND, and the

APPLICATIONS INFORMATION