LXT304ANE Level-One-Communications, LXT304ANE Datasheet

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LXT304ANE

Manufacturer Part Number
LXT304ANE
Description
Short/Haul transceiver with receive JA
Manufacturer
Level-One-Communications
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LXT304ANE
Manufacturer:
LEVEL
Quantity:
20 000
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The LXT304A is a fully integrated low-power transceiver
for both North American 1.544 Mbps (T1), and Interna-
tional 2.048 Mbps (E1) applications. It features a constant
low output impedance transmitter allowing for high trans-
mitter return loss in T1/E1 applications. Transmit pulse
shapes (DSX-1 or E1) are selectable for various line
lengths and cable types.
The LXT304A provides receive jitter attenuation starting
at 3 Hz, and is microprocessor controllable through a serial
interface.
It offers a variety of diagnostic features including transmit
and receive monitoring. The device incorporates an on-
chip crystal oscillator, and also accepts digital clock inputs.
It uses an advanced double-poly, double-metal CMOS pro-
cess and requires only a single 5-volt power supply.
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RLOOP
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XTALIN
RNEG
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RPOS
TPOS
TCLK
RCLK
DPM
LOS
Internal Clock
Synchronizer
Elastic Store
Attenuator
Generator
Equalizer
Control
Jitter
Data Latch
Recovery
Receive
Monitor
Timing
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LXT304ANE Summary of contents

Page 1

ZLWK 5HFHLYH -$ *HQHUDO 'HVFULSWLRQ The LXT304A is a fully integrated low-power transceiver for both North American 1.544 Mbps (T1), and Interna- tional 2.048 Mbps (E1) applications. It features a constant low output ...

Page 2

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LV D IXOO\ LQWHJUDWHG 3&0 WUDQVFHLYHU IRU ERWK ìïèéé 0ESV õ'6;ðìô DQG ëïíéå 0ESV õ(ìô DSSOLFDð WLRQVï ,W DOORZV IXOOðGXSOH[ WUDQVPLVVLRQ RI GLJLWDO GDWD RYHU H[LVWLQJ WZLVWHGðSDLU LQVWDOODWLRQVï 7KH /;7êíé$ WUDQVFHLYHU LQWHUIDFHV ZLWK WZR WZLVWHGðSDLU OLQHVñ ...

Page 6

Recovered data is clocked into the ES with the recovered clock signal, and clocked out of the ES with the dejittered clock from the JAL. When the bit count in the ES is within two bits of overflowing ...

Page 7

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Page 11

Figure 2.048 Mbps E1 TWP application using 15 Rt resistors in line with the transmit transformer to provide high return loss and surge protection. When high return loss is not a critical ...

Page 12

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 ...

Page 13

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