DP83953 datasheet(46/90 Pages) NSC

Part #	DP83953

Description	Repeater Interface Controller with Security Features, Internal Drivers and Integrated Filters

PDF	90 Pages

Scroll/Zoom	100%

Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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46 / 90 page

6.0 Port Block Functions (Continued)

www.national.com

Figure 18. Magnetics Requirements

Figure 19. Twisted Pair Interface to the Transformer and RJ45

Note 1: 1:2 turn ratio on transmit and 1:1 turn ratio on receive sides.

Note 2: Transmit common mode chokes may not be required.

Note 3: Please consult individual vendors for pin outline. Typical 16 pin

module shown.

Electrical Specification:

Glossary:

OCL

(1-3)

min. 50

µH @ 1 MHz, 0.1Vrms

(6-8), (9-11), (14-16) min. 200 µH @ 1 MHz, 0.1Vrms

Cww

(1-3) to (14-16)

12 pF max @ 1 MHz, 0.1Vrms

(6-8) to (9-11)

12 pF max @ 1 MHz, 0.1Vrms

(1,3 & short 14,16)

0.3

µH max @ 1MHz, 0.1Vrms

(6,8 & short 9,11)

0.3

µH max @ 1MHz, 0.1Vrms

DCR

(1-3)

0.35

Ω max

(6-8) = (11-9)

0.5

Ω max

(14-16)

1.0

Ω max

HIPOT (1,3 to 14,16)

(6,8 to 9,11)

2000 Vrms for 1 minute

OCL:

Open circuit inductance

Cww:

Interwinding capacitance

LL:

Leakage inductance

DCR:

DC resistance

Where C = 0.01

µF, C1 = 1.0 nF, R

R = 49.9Ω, and RT = 10Ω. All values are typical and ± 1%.

DP83953 Datasheet(PDF) 46 Page - National Semiconductor (TI)

DP83953 Datasheet(HTML) 46 Page - National Semiconductor (TI)

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