Table 3. circuit response to single-point faults – Rainbow Electronics MAX3799 User Manual

Page 19

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MAX3799

1Gbps to 14Gbps, SFP+ Multirate Limiting

Amplifier and VCSEL Driver

______________________________________________________________________________________

19

PIN NAME

SHORT

TO

V

CC

SHORT TO GND

OPEN

1

LOS

Normal (Note 1)

Normal (Note 1)

Normal (Note 1)

2

RSEL

Normal (Note 1)

Normal (Note 1)

Normal (Note 1)

3 V

CCR

Normal

Disabled—HARD FAULT (external
supply shorted) (Note 2)

Normal (Note 3)—Redundant path

4

ROUT+

Normal (Note 1)

Normal (Note 1)

Normal (Note 1)

5

ROUT-

Normal (Note 1)

Normal (Note 1)

Normal (Note 1)

6 V

CCR

Normal

Disabled—HARD FAULT (external
supply shorted) (Note 2)

Normal (Note 3)—Redundant path

7 V

CCD

Normal

Disabled—HARD FAULT

Disabled—HARD FAULT

8 DISABLE

Disabled

Normal (Note 1). Can only be
disabled with other means.

Disabled

9

SCL

Normal (Note 1)

Normal (Note 1)

Normal (Note 1)

10

SDA

Normal (Note 1)

Normal (Note 1)

Normal (Note 1)

11

CSEL

Normal (Note 1)

Normal (Note 1)

Normal (Note 1)

12 V

CCT

Normal

Disabled—Fault (external supply
shorted) (Note 2)

Normal (Note 3)—Redundant path

13

TIN+

SOFT FAULT

SOFT FAULT

Normal (Note 1)

14

TIN-

SOFT FAULT

SOFT FAULT

Normal (Note 1)

15 V

CCT

Normal

Disabled—Fault (external supply
shorted) (Note 2)

Normal (Note 3)—Redundant path

16

BMON

Disabled—HARD FAULT

Normal (Note 1)

Disabled—HARD FAULT

17 V

EET

Disabled—Fault (external supply
shorted) (Note 2)

Normal Disabled—HARD

FAULT

18 V

CCT

Normal

Disabled—Fault (external supply
shorted) (Note 2)

Normal (Note 3)—Redundant path

19 TOUT-

I

MOD

is reduced

Disabled—HARD FAULT

I

MOD

is reduced

20 TOUT+

I

MOD

is reduced

Disabled—HARD FAULT

I

MOD

is reduced

21 V

CCT

Normal

Disabled—Fault (external supply
shorted) (Note 2)

Normal (Note 3)—Redundant path

22 BIAS

I

BIAS

is on—No Fault

Disabled—HARD FAULT

Disabled—HARD FAULT

23

FAULT

Normal (Note 1)

Normal (Note 1)

Normal (Note 1)

24 V

CCT

Normal

Disabled—Fault (external supply
shorted) (Note 2)

Normal (Note 3)—Redundant path

25 V

CCT

Normal

Disabled—Fault (external supply
shorted) (Note 2)

Normal (Note 3)—Redundant path

26 V

EER

Disabled—Fault (external supply
shorted) (Note 2)

Normal

Normal (Note 3)—Redundant path

27 V

CCR

Normal

Disabled—HARD FAULT (external
supply shorted) (Note 2)

Normal (Note 3)—Redundant path

28

RIN-

Normal (Note 1)

Normal (Note 1)

Normal (Note 1)

29

RIN+

Normal (Note 1)

Normal (Note 1)

Normal (Note 1)

Table 3. Circuit Response to Single-Point Faults

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