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IDT82V2081 Datasheet

SINGLE CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE

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SINGLE CHANNEL T1/E1/J1
LONG HAUL/SHORT HAUL
LINE INTERFACE UNIT
IDT82V2081
FEATURES
• Single channel T1/E1/J1 long haul/short haul line interface
• Supports HPS (hitless protection Switching) for 1+1 protection
without external relays
• Receiver sensitivity exceeds -36 dB@772KHz and -43 dB@1024
KHz
• Programmable T1/E1/J1 switchability allowing one bill of ma-
terial for any line condition
• Single 3.3 V power supply with 5 V tolerance on digital interfaces
• Meets or exceeds specifications in
- ANSI T1.102, T1.403 and T1.408
- ITU I.431, G.703, G.736, G.775 and G.823
- ETSI 300-166, 300-233 and TBR12/13
- AT&T Pub 62411
• Software programmable or hardware selectable on:
- Wave-shaping templates for short haul and long haul LBO (Line Build
Out)
- Line terminating impedance (T1:100 , J1:110 E1:75 120 
- Adjustment of arbitrary pulse shape
- JA (Jitter Attenuator) position (receive path or transmit path)
- Single rail/dual rail system interfaces
- B8ZS/HDB3/AMI line encoding/decoding
- Active edge of transmit clock (TCLK) and receive clock (RCLK)
- Active level of transmit data (TDATA) and receive data (RDATA)
- Receiver or transmitter power down
- High impedance setting for line drivers
- PRBS (pseudo random bit sequence) generation and detection with
215-1 PRBS polynomials for E1
- QRSS (quasi random signal source) generation and detection with
220-1 QRSS polynomials for T1/J1
- 16-bit BPV (bipolar pulse violation) /excess zero/PRBS or QRSS
error counter
- Analog loopback, digital loopback, remote loopback and inband loop-
back
• Cable attenuation indication
• Adaptive receive sensitivity
• Short circuit protection and internal protection diode for line
drivers
• AIS (alarm indication signal) detection
• Supports serial control interface, Motorola and Intel multiplexed
interfaces and hardware control mode
• Pin compatible 82V2041E T1/E1/J1 short haul LIU and 82V2051E
E1 short haul LIU
• Package:
Available in 44-pin TQFP and 48-pin QFN packages
DESCRIPTION
The IDT82V2081 can be configured as a single channel T1, E1 or J1
line interface unit. In the receive path, an adaptive equalizer is integrated
to remove the distortion introduced by cable attenuation. The IDT82V2081
also performs clock/data recovery, AMI/B8ZS/HDB3 line decoding and
detects and reports LOS conditions. In the transmit path, there is an AMI/
B8ZS/HDB3 encoder, waveform shaper and LBOs. There is one jitter atten-
uator, which can be placed in either the receive path or the transmit path.
The jitter attenuator can also be disabled. The IDT82V2081 supports both
single rail and dual rail system interfaces. To facilitate the network mainte-
nance, a PRBS/QRSS generation/detection circuit is integrated in the chip,
and different types of loopbacks can be set according to the applications.
Four different kinds of line terminating impedance, 75 , 100  110 and
120 are selectable. The IDT82V2081 also provides driver short-circuit
protection and internal protection diodes. The IDT82V2081 can be con-
trolled by either software or hardware.
The IDT82V2081 can be used in LAN, WAN, routers, wireless base sta-
tions, IADs, IMAs, IMAPs, gateways, frame relay access devices, CSU/
DSU equipment, etc.
IDT and the IDT logo are trademarks of Integrated Device Technology, Inc.
1
2019 Integrated Device Technology, Inc.
January 7, 2019
DSC-6228/6


Renesas Electronics Components Datasheet

IDT82V2081 Datasheet

SINGLE CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE

No Preview Available !

IDT82V2081
SINGLE CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT
FUNCTIONAL BLOCK DIAGRAM
Figure-1 Block Diagram
Functional Block Diagram
2
January 7, 2019



Part Number IDT82V2081
Description SINGLE CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE
Maker Renesas
Total Page 3 Pages
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IDT82V2081 Datasheet PDF





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