DS32512

6-/8-/12-Port DS3/E3/STS-1 LIU

Less than 170mW/Port in a Small, 23mm x 23mm BGA

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Part Details

Pin-Compatible Family of Products
Each Port Independently Configurable
Receive Clock and Data Recovery for Up to 457 meters (1500 feet) of 75Ω Coaxial Cable
Standards-Compliant Transmit Waveshaping
Uses 1:1 Transformers on Both Tx and Rx
Three Control Interface Options: 8/16-Bit Parallel, SPI, and Hardware Mode
Jitter Attenuators (One Per Port) Can be Placed in the Receive Path or the Transmit Path
Jitter Attenuators Have Provisionable Buffer Depth: 16, 32, 64, or 128 Bits
Built-In Clock Adapter Generates All Line-Rate Clocks from a Single Input Clock (DS3, E3, STS-1, 12.8MHz, 19.44MHz, 38.88MHz, 77.76MHz)
Per-Port Programmable Internal Line Termination Requiring Only External Transformers
High-Impedance Tx and Rx, Even When V_DD = 0, Enables Hot-Swappable, 1:1 and 1+1 Board Redundancy Without Relays
Per-Port BERT for PRBS and Repetitive Pattern Generation and Detection
Tx and Rx Open and Short Detection Circuitry
Transmit Driver Monitor Circuitry
Receive Loss-of-Signal (LOS) Monitoring Compliant with ANSI T1.231 and ITU G.775
Automatic Data Squelching on Receive LOS
Large Line Code Performance-Monitoring Counters for Accumulation Intervals Up to 1s
Local and Remote Loopbacks
Transmit Common Clock Option
Power-Down Capability for Unused Ports
Low-Power 1.8V/3.3V Operation (5V Tolerant I/O)
Industrial Temperature Range: -40°C to +85°C
Small Package: 23mm x 23mm, 484-Pin BGA
IEEE 1149.1 JTAG Support