XE0068DT(1999) View Datasheet(PDF) - Xecom
Part Name
Description
Manufacturer
XE0068DT Datasheet PDF : 13 Pages
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XE0068DT
2/99
FCC Registered DAA Module with DTMF Transmitter/Decoder
Description
The XE0068DT is an FCC registered telephone line
interface which includes a DTMF transmitter, DTMF
decoder and call progress monitor.
FCC rules limit the signal level that equipment can
place on the telephone line. The XE0068DT incorpo-
rates an Automatic Gain Control (AGC) circuit to con-
trol the output signal level. The AGC optomizes the
output levele over a wide variety of input levels with-
out introducing signal distortion.
FCC rules also dictate a 2-second delay at the start of
each call. This billing delay prevents information
transmission during the billing period. The
XE0068DT includes this billing delay.
Features
* Small Size - 2.28" x 1.08" x 0.42"
* FCC Part 68 Registered
* Ring Detection and Hookswitch Control
* 1500 Volt Isolation;
* 800 Volt Surge Protection;
* An Integral 2-Second Billing Delay
* Auotomatic Gain Control optimizes transmit level
for most any input level.
* Integral DTMF transmitter and decoder
* Call progress Monitor
The integrated DTMF transceiver, call progress moni-
tor and FCC registration make the XE0068DT ideal
for network signalling applications.
XE0068DT Block Diagram
XE0068DT Pin Configuration
D0
D1
D2
D3
ESt
/RD
/WR
/CS
RS0
CP
StGT
DTMF
Transmitter
& Receiver
Line
Transformer
2-4 Wire
RCVR Convertor
XMIT
D/V
AGC
Hook Switch
Tip
Ring
OH
Ring
Detect
/RI
VCC o 1
D3 o 2
D2 o 3
D1 o 4
D0 o 5
/WR o 6
/RD o 7
/CS o 8
RS0 o 9
N/C o 10
N/C o 11
N/C o 12
D/V o 13
Billing Delay
Timer
26 o Tip
24 o Ring
22 o /RI
21 o OH
20 o N/C
19 o RCVR
18 o XMIT
17 o StGT
16 o ESt
15 o CP
14 o GND
XECOM
(1)
XE0068DT
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