Rainbow-electronics MAX9258 Manual do Utilizador descarregar pdf (Página 47)

ESD Protection

The MAX9257/MAX9258 ESD tolerance is rated for

Human Body Model, Machine Model, IEC 61000-4-2

and ISO 10605. The ISO 10605 and IEC 61000-4-2

standards specify ESD tolerance for electronic sys-

tems. LVDS outputs on the MAX9257 and LVDS inputs

on the MAX9258 meet ISO 10605 ESD protection and

IEC 61000-4-2 ESD protection. All other pins meet the

Human Body Model and Machine Model ESD toler-

ances. The Human Body Model discharge components

are C

= 100pF and R

= 1.5kΩ (Figure 33). The IEC

61000-4-2 discharge components are C

= 150pF and

= 330Ω (Figure 32). The ISO 10605 discharge com-

ponents are C

= 330pF and R

= 2kΩ (Figure 34). The

Machine Model discharge components are C

= 200pF

and R

= 0Ω (Figure 35).

MAX9257/MAX9258

______________________________________________________________________________________ 47

Fully Programmable Serializer/Deserializer

with UART/I

C Control Channel

Chip Information

PROCESS: CMOS

STORAGE

CAPACITOR

HIGH-

VOLTAGE

SOURCE

DEVICE

UNDER

TEST

CHARGE-CURRENT-

LIMIT RESISTOR

DISCHARGE

RESISTANCE

1MΩ

1.5kΩ

100pF

Figure 33. Human Body ESD Test Circuit

STORAGE

CAPACITOR

HIGH-

VOLTAGE

SOURCE

DEVICE

UNDER

TEST

CHARGE-CURRENT-

LIMIT RESISTOR

DISCHARGE

RESISTANCE

2kΩ

330pF

Figure 34. ISO 10605 Contact Discharge ESD Test Circuit

STORAGE

CAPACITOR

HIGH-

VOLTAGE

SOURCE

DEVICE

UNDER

TEST

CHARGE-CURRENT-

LIMIT RESISTOR

DISCHARGE

RESISTANCE

0Ω

200pF

Figure 35. Machine Model ESD Test Circuit

150pF

STORAGE

CAPACITOR

HIGH-

VOLTAGE

SOURCE

DEVICE

UNDER

TEST

CHARGE-CURRENT-

LIMIT RESISTOR

DISCHARGE

RESISTANCE

330Ω

Figure 32. IEC 61000-4-2 Contact Discharge ESD Test Circuit

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 53 54

MAX9257/MAX9258 1
C Control Channel 1

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