MC145425P View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

MC145425P

ISDN Universal Digital Loop Transceivers II

Motorola => Freescale 

+5V

110 Ω

LO1

110 Ω

Tx

+5V

110 Ω

LO2

110 Ω

MASTER

OR

SLAVE

ISDN UDLT

Vref

+5V

0.1 µF

0.1 µF

+5V

Rx

5 kΩ

LI

10 kΩ

L1

TWISTED PAIR WIRE

L2

TRANSFORMER PARAMETERS

INDUCTANCE OF Tx: WINDING: 1.75 mH

TURNS RATIO: Tx L1 + L2 2:1

TURNS RATIO: Rx L1 + L2 4:1

DIODES: 1N4148 OR EQUIVALENT

Figure 4. Interface to Twisted Pair Wire

MOTOROLA

MC145421•MC145425

11

Share Link: