E649 데이터 시트보기 (PDF) - Semtech Corporation

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E649

Octal Pin Electronics Driver/Receiver

Semtech Corporation 

TEST AND MEASUREMENT PRODUCTS

Application Infor mation (continued)

Optional Output Configuration

Certain functional applications require a series output

resistor yet also demand that the comparator be

connected directly to the DUT, not via the backmatch

resistor. To create this configuration, two distinct

termination resistors may be connected to the VHIGH

and VLOW input pins (see Figure 13).

VHIGH

PROGRAMMABLE

CURRENT

SOURCE

DATA IN A

DATA EN* A

DATA IN B

DATA EN* B

VLOW

VOLTAGE

MEASUREMENT

UNIT

DUT

Figure 12. Edge649 Supporting Parametric Testing

Edge649

VHIGH

VLOW

DUT

Figure 13. Functional Application with

the Comparator Connected Directly to the DUT

Thermal Information

Parameter

Thermal Resistance

Junction to Case

Junction to Air

Still Air

50 LFPM

400 LFPM

Symbol

Min

Typ

Max

Units

θJC

9.8

oC/ W

θJA

34

oC/ W

θJA

26

oC/ W

θJA

19

oC/ W

Revision 5 / October 21, 2002

9

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