March 22, 2006

Email: ddisales@datatronics.com

499 King’s Road, Hong Kong Tel: (852) 2562 3858, (852) 2564 8477 Fax: (852) 2565 7214, (852) 2563 1290

All specifications are subject to change without notice.

NT74804

10 Base-T LAN Modules with CMC

Features

-

Designed to meet 802.3 10 Base-T Specification

-

Compact SMD package

-

Tape & Reel Available

Electrical Specifications at 25

°C

Parameter

Specification

Measured Pins

Test Condition

Turns Ratio

1CT : 1CT

±5%

(1-5-3) : (8-7-6)

HP4284A

1CT : 1CT

±5%

(16-12-14) : (9-10-11)

HP4284A

Insertion Loss

1.0 d B MAX

Tx-Channel & Rx-Channel

HP8751A @ 1-10 MHz

Cut off Freq

17 MHz typ.

Tx-Channel & Rx-Channel

HP8751A @ 3 d B

Attenuation

30 d B MIN

Tx-Channel

HP8751A @ 30 MHz

35 d B MIN

Tx-Channel

HP8751A @ 50 MHz

35 d B MIN

Tx-Channel

HP8751A @ 100 MHz

25 d B MIN

Rx-Channel

HP8751A @ 30 MHz

30 d B MIN

Rx-Channel

HP8751A @ 50 MHz

30 d B MIN

Rx-Channel

HP8751A @ 100 MHz

Return Loss

@ 100

Ω Load

18 d B MIN

Tx-Channel

HP8751A @ 5-10 MHz, 100

Ω

18 d B MIN

Rx-Channel

HP8751A @ 5-10 MHz, 100

Ω

Return Loss

@ 98

±13 Ω load

15 d B MIN

Tx-Channel

HP8751A @ 5-10 MHz, 98

± 13 Ω

15 d B MIN

Rx-Channel

HP8751A @ 5-10 MHz, 98

± 13 Ω

CMRR

60 d B MIN

Tx-Channel & Rx-Channel

HP8751A @ 5-10 MHz

55 d B MIN

Tx-Channel & Rx-Channel

HP8751A @ 50 MHz

50 d B MIN

Tx-Channel & Rx-Channel

HP8751A @ 100 MHz

45 d B MIN

Tx-Channel & Rx-Channel

HP8751A @ 200 MHz

Cross Talk

35 d B MIN

Tx-Channel to Rx-Channel

HP8751A @ 5-10 MHz

HI-POT

1500 VAC

Chip side TO Cable side

HI-POT TESTER

Mechanical Outlines

Seating

Plane

Co-planarity: 0.004 (0.1)

1.000 (25.4)

0.700 (17.78)

0.500 (12.7)

0.380

(9.65)

0.040

(1.02)

0.100 (2.54)

0.225 (5.7)

0.018 (0.46)

TYP

NT74804

(DATE CODE)

DATATRONIC

Tx-Channel

SCHEMATIC

Rx-Channel

16

5

14

12

1

3

9

11

10

8

6

7

All dimensions are specified in inches (mm)

Unless otherwise specified, tolerances are +/- 0.010 (0.25)

Dimensions are exclusive of solder