LXT304A View Datasheet(PDF) - Level One
Part Name
Description
MFG CO.
'LXT304A' PDF : 18 Pages View PDF
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Existing D4 Channel Bank architectures frequently em-
ploy: (1) a plug-in card for T1 pulse generation (6.0 V
peak); and (2) a separate card for pulse shaping and Line
Build-Out (LBO). The LXT304A integrates the functions
of both cards on a single chip producing a DSX-1 compat-
ible, 3.0 V peak output pulse with a standard transformer.
In new designs, the LXT304A can replace two cards with
one. However, the LXT304A is also compatible with ex-
isting dual-card architectures. With an appropriate output
transformer, the LXT304A can produce full 6.0 V peak am-
plitude pulses suitable for D4 Channel Bank applications
with separate pulse shaping/LBO cards.
To achieve the 6.0 V peak output, the FCC Part 68-010
Equalizer Code setting is used. (EC = 010.) With the stan-
dard 1:1.15 transformer, this code produces a 3.0 V peak
pulse. However, doubling the transformer turns ratio to
1:2.30 produces the desired 6.0 V peak pulse.
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1. Transformer turns ratio accuracy is ± 2%.
2. Rr and Rt values are ± 1%.
3. Typical return loss, 51 kHz to 3.072 MHz band.
4. D4 Channel Bank application.
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