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DS32506, DS32508, 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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Status
Active: In Production.
Description
The DS32506 (6 port), DS32508 (8 port), and DS32512 (12 port) line interface units (LIUs) are highly integrated, low-power, feature-rich LIUs for DS3, E3, and STS-1 applications. Each LIU port in these devices has independent receive and transmit paths, a jitter attenuator, full-featured pattern generator and detector, performance-monitoring counters, and a complete set of loopbacks. An on-chip clock adapter generates all line-rate clocks from a single input clock. Ports are independently software configurable for DS3, E3, and STS-1 and can be individually powered down. Control interface options include 8-bit parallel, SPI™, and hardware mode.
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Data Sheet
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Key Features
- 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 VDD = 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
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Applications/Uses
- Access Concentrators
- ATM and Frame Relay Equipment
- CSUs/DSUs
- Digital Cross-Connects
- DSLAMs
- PBXs
- SONET/SDH and PDH Multiplexers
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Key Specifications:
| T/E Carrier & Packetized Products |
| Part Number |
Transmission Standard |
Functions |
Channels |
VSUPPLY
(V) |
EV Kit |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max w/pins |
See Notes |
| DS32506 |
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LIU |
6 |
3.3 |
Yes |
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380.3 |
$67.20 @1k |
| DS32508 |
8 |
- |
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$78.28 @1k |
| DS32512 |
12 |
Yes |
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$98.88 @1k |
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See All T/E Carrier & Packetized Products (99)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Typical Operating Circuit
Didn't Find What You Need?
Information Index
Rev 2;
2008-11-11
This page last modified: 2008-11-11
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