XECOM XE0068 Datasheet

XE0068

1/99

FCC Registered Phone Line Interface

Description

The XE0068 is a compact, FCC registered telephone line interface. Designers can use the XE0068 in their telecom designs without going through the time and expense of FCC Part 68 Registration. This makes the XE0068 perfect for low volume and prototype designs.

To attain FCC part 68 Registration on the XE0068, Xecom was required to control the output level to the telephone line and provide a 2-second billing delay. Xecom designed an Automatic Gain Control circuit to meet FCC rules limiting transmit level. Xecom's Automatic Gain Control circuit optimizes a wide range of input signal levels for placement on the telephone line.

The XE0068 can support data, fax, voice, and DTMF signalling applications.

Features

*Small Size - 1.75" x 1.08" x 0.42";

*User Transferrable FCC Part 68 Registration;

*Ring Detection and Hookswitch Control;

*1500 Volt Isolation;

*800 Volt Surge Protection;

*Integrated supplemental lightening protection

*Integral 2-Second Billing Delay;

*Automatic Gain Control of transmit signal;

*Integral 2 to 4 wire convertor;

*Suitable for broad bandwidth applications;

BLOCK DIAGRAM

TIP

Line

Transformer

RING

RCVR

2 to 4 wire

Hook-

Ring

switch

RI

convertor

Detect

Control

OH

AGC

XMIT

Billing

Delay

D/V

XECOM

(1)

XE0068

Mechanical Specifications
	Inches		Metric(MM)																A
Dim	Min	Max	Min	Max
A	1.735	1.765	44.07	44.83
B	1.065	1.095	27.05	27.81																							B
C	0.420	0.430	10.67	10.92
D	0.890	0.910	22.61	23.11
E	1.190	1.210	30.23	30.73
																Denotes Pin 1
F	0.125	0.200	3.18	5.08
G	0.080	0.100	2.03	2.54					C
H	0.265	0.285	6.73	7.24																							K
J	0.090	0.110	2.29	2.79
K	0.020	0.025	0.51	0.64

DG J F

H E

Pins are 0.025 inch square, tin plated.

Recommended PCB hole size is 0.056 inches (0.86 MM)

Typical Connection Diagram
+5V		XE0068	TIP	Ferrite Beads		3 RJ11C
	1
		26			TPB270
		24	RING			4
		22	RI
		21 OH			470 pFd
		19	RCVR		RECEIVE SIGNAL
		18	XMIT	TRANSMIT SIGNAL
D/V	13	14
			System Controller		Signal	Signal
					Source	Decoder
XECOM				(2)		XE0068