XRT83SH314 Просмотр технического описания (PDF) - Exar Corporation

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XRT83SH314

14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT

Exar Corporation 

XRT83SH314

14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT

REV. 1.0.4

• Fully integrated 14-Channel short haul transceivers for T1/J1 (1.544MHz) and E1 (2.048MHz) applications.

• T1/E1/J1 short haul and clock rate are per port selectable through software without changing components.

• Internal Impedance matching on both receive and transmit for 75Ω (E1), 100Ω (T1), 110Ω (J1), and 120Ω

(E1) applications are per port selectable through software without changing components.

• Power down on a per channel basis with independent receive and transmit selection.

• Five pre-programmed transmit pulse settings for T1 short haul applications per channel.

• User programable Arbitrary Pulse mode

• On-Chip transmit short-circuit protection and limiting protects line drivers from damage on a per channel

basis.

• Selectable Crystal-Less digital jitter attenuators (JA) with 32-Bit or 64-Bit FIFO for the receive or transmit

path

• On-Chip frequency multiplier generates T1 or E1 master clocks from a variety of external clock sources (8,

16, 56, 64, 128, 256kHz and 1X, 2X, 4X, 8X T1 or E1)

• Driver failure monitor output (DMO) alerts of possible system or external component problems.

• Transmit outputs and receive inputs may be "High" impedance for protection or redundancy applications on a

per channel basis.

• Support for automatic protection switching.

• 1:1 and 1+1 protection without relays.

• Receive monitor mode handles 0 to 6dB resistive attenuation (flat loss) along with 0 to 6dB cable loss for

both T1 and E1.

• Loss of signal (RLOS) according to ITU-T G.775/ETS300233 (E1) and ANSI T1.403 (T1/J1).

• Programmable data stream muting upon RLOS detection.

• On-Chip HDB3/B8ZS encoder/decoder with an internal 16-bit LCV counter for each channel.

• On-Chip digital clock recovery circuit for high input jitter tolerance.

• QRSS/PRBS pattern generator and detection for testing and monitoring.

• Error and bipolar violation insertion and detection.

• Transmit all ones (TAOS) Generators and Detectors

• Supports local analog, remote, digital, and dual loopback modes

• 153mW per channel Power consumption

• Single 3.3V supply operation (3V to 5V I/O tolerant)

• 304-Pin TBGA package

• -40°C to +85°C Temperature Range

• Supports gapped clocks for mapper/multiplexer applications

PRODUCT ORDERING INFORMATION

PRODUCT NUMBER

PACKAGE TYPE

XRT83SH314IB

304 Lead TBGA

OPERATING TEMPERATURE RANGE

-40°C to +85°C

2

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