(China (Mainland))
Product Summary
LXT332QE is a dual T1/E1 line interface unit with Crystal-less. The LXT332QE features B8ZS/HDB3 encoders and decoders, and a constant low output impedance transmitter for high return loss. The LXT332QE incorporates an advanced crystal-less digital jitter attenuator, switchable to either the transmit or receive side. Applications of the LXT332QE include: PCM/Voice Channel Banks, Data Channel Bank/Concentrator, T1/E1 multiplexer,Digital Access and Cross-connect Systems (DACS) , Computer to PBX interface (CPI & DMI), SONET/SDH Mulyiplexers, Interfacing Customer Premises Equipment to a CSU, Digital Loop Carrier (DLC) terminals.
Parametrics
LXT332QE absolute maximum ratings: (1) DC supply (referenced to GND) VCC, TVCCO, TVCC1: 6.0V; (2) Input voltage, any pin Vin: GND- 0.3V, Vcc +0.3V; (3) Input current, any pin Iin: -10mA, 10mA; (4) Storage temperature Tstg: -65°C to +150°C.
Features
LXT332QE features: (1) Digital (crystal-less) jitter attenuation, selectable for receive or transmit path, or may be disabled; (2) High transmit and receive return loss; (3) Constant low output impendance transmitter with programmable equalizer shapes pulses to meet DSX-1 pulse template from 0 to 655 ft; (4) Meets or exceeds industry specifications including ITU G703, ANSITL. 403 and AT&T Pub 62411; (5) Compatiable with most industry standard framers; (6) Minimum receive signal of 500mV, with selectable slicer levels (EI/DSX-1) to improve SNR; (7) Built-IN Self Test with QRSS Pattern Generator; (8) Available in 44-pin PLCC and 44-pin QFP.
Diagrams
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