XECOM XE0080 Datasheet

XECOM XE0080

Surface Mount V.34 Telephone Line Interface

xecom

XE0080

9-97

TM

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 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.

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

* 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

1 (top view) 9
2
3 8
4
5 7
6

Gnd

T2

OH

T1

RI

Vcc

Tip

Ring

N/C

Loop

Current
Holding

Circuit

Line

Transformer

Hook-

Switch

Ring

Detect

Tip
Ring

T1
T2

OH

RI

XECOM (2) XE0080

XE0080 Mechanical Specifications

A

B

C

D

E

G

F

H

J

I

Pin 1

F

F

K

L

A Module Width 0.770 0.780 19.56 19.81

B Module Height 0.195 0.205 4.95 5.21
C Pin Length 0.035 0.045 0.89 1.14
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
F End of Row to edge 0.130 0.140 3.30 3.56
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

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

Inches Millimeters

Dim Description Min Max Min Max

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

RJ11

+5 Volts

TXA1

RXA

TXA2

Rm

Z1

Z2

C1

MOV1

C2

FB1

FB2

C3

3

4

Rockwell

RC224ATL

Ring -

OHRELAY -

XE0080

Tip 9

Ring 8

4 T1
2 T2

5 /RI

3 OH
6 Vcc

1 Gnd

15 ohms

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)