XECOM XE0080 Datasheet

xecom	TM	XE0080
	TM	XE0080
		9-97

Surface Mount V.34 Telephone Line Interface

Description

Xecom's XE0080 is a miniature, surface-mount telephone interface module for high-volume applications. The XE0080 meets FCC Part 68 rules for direct connection to the public telephone network, supports V.34 data transfer, and adapts to automated pick and place equipment.

The XE0080 operates from a single power supply of either +5 volts or +3.3 volts for low power applications. It is intended for high volume applications including set top box and credit verification systems

Features

The XE0080 is a complete telephone line interface. It includes the line transformer, ring detection, switch hook control and loop current holding circuit. The XE0080 supplies a 1500 volt isolation barrier between the telephone line and the host circuitry.

The XE0080 fits all this circuitry into a package just 0.80 inches square and 0.200 inches thick. The 0080 attaches to the board through nine surface-mount pins.

*Miniature Size: 0.8" long, 0.8" wide, and 0.2" thin (maximum);

*9-pin Surface mountable package;

*Supports V.34 data transfer to 28,800 bps;

*FCC Part 68 Compliant;

*Low Total Harmonic Distortion -80 dB max.;

*Ring Detection;

*3.3 Volt or 5 Volt Operation

*Hookswitch Control

Block Diagram

PIN CONFIGURATION

Loop

Tip

Gnd

(top view)

Tip

Line

Current

Ring

Transformer

Holding

Circuit

Ring

Hook-

N/C

Switch

Vcc

Ring

Detect

XECOM

XE0080

XE0080 Mechanical Specifications

		Inches		Millimeters				A
Dim	Description	Min	Max	Min	Max
						B		C
A	Module Width	0.770	0.780	19.56	19.81
								K
B	Module Height	0.195	0.205	4.95	5.21
							Pin 1	L

C	Pin Length	0.035	0.045	0.89	1.14		F	F
D	Pin Row Length (6 to 9)	0.395	0.405	10.03	10.29

E	Module Length	0.750	0.760	19.05	19.30			D
F	End of Row to edge	0.130	0.140	3.30	3.56	E	J

								I
							H
G	Pin 7 to module edge	0.220	0.230	5.59	5.84

H	Pin Spacing (control side)	0.095	0.105	2.41	2.67		F	G
I	Pin Spacing (Telco side)	0.195	0.205	4.95	5.21

J	Pin Row Length (1 to 5)	0.495	0.505	12.57	12.83
K	Row to Row Spacing	0.620	0.630	15.75	16.00
L	Horizontal Pin Length	0.075	0.085	1.90	2.16

Note: Xecom placed the telephone and control leads on opposite sides of the device to assist the user in maintaining the necessary isolation between the telephone network and the user equipment. FCC Part 68 rules require 1500 volts isolation between the telephone line and all other circuits.

XE0080 Typical Connection Diagram For Rockwell RC224ATL

Rockwell

RC224ATL

XE0080

Ring -

/RI

Tip 9

RXA

Ring 8

TXA1

TXA2

OHRELAY -

+5 Volts

Vcc

Gnd

RJ11

15 ohms

FB1

MOV1

FB2

15 ohms

Recommended Parts

Designation		Description
Rm		Line Impedance Matching Resistor, 300 ohms, 5%
C1		.01 microfarad
C2,	C3	47 picofarad, 3000 Volts (Sprague Part Number 30GA-T47)
Z1,	Z2	Zener Diode 4.3 Volts
FB1, FB2		Ferrite Beads (TDK Part Number CB30-453215B)
MOV1		Minimum Breakover 220 volts (Teccor Part Number P2600BA70)

XECOM

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XE0080

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