DP83910AV datasheet(10/12 Pages) NSC

10 / 12 page

90 Switching Characteristics (Continued)

Loopback Timing

TLF9365 – 9

Loopback Specifications

Symbol

Parameter

Min

Max

Units

tLBs

Loopback Setup Time (Note 1)

tLBh

Loopback Hold Time (Note 1)

1000

Note 1

This parameter is guaranteed by design and is not tested

AC Timing Test Conditions

All specifications are valid only if the mandatory isolation is

employed and all differential signals are taken to be at the

AUI side of the pulse tranformer

Input Pulse Levels (TTLCMOS)

GND to 30V

Input Rise and Fall Times (TTLCMOS)

5 ns

Input and Output Reference Levels

(TTLCMOS)

13V

Input Pulse Levels

(Diff)

350 to b1315 mV

Input and Output

50% Point of

Reference Levels (Diff)

the Differential

TLF9365 – 10

FIGURE 3

Capacitance TA e 25 C f e 1 MHz

Symbol

Parameter

Typ

Units

CIN

Input Capacitance

COUT

Output Capacitance

TLF9365 – 12

FIGURE 4

Note

In the above diagram the TXa and TXb signals are taken from the

AUI side of the isolation (pulse transformer) The pulse transformer used for

all testing is the Pulse Engineering PE64103

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