XRT73L04B：4-Channel DS3/E3/STS-1 Line Interface Unit
The XRT73L04B, 4-Channel, DS3/E3/STS-1 Line Interface Unit is a low power CMOS version of the XRT73L04A and consists of four independent line transmitters and receivers integrated on a single chip designed for DS3, E3 or SONET STS-1 applications. Each channel of the XRT73L04B can be configured to support the E3 (34.368 Mbps), DS3 (44.736 Mbps) or the SONET STS-1 (51.84 Mbps) rates. Each channel can be configured to operate in a mode/data rate that is independent of the other channels. In the transmit direction, each channel encodes input data to either B3ZS (DS3/STS-1) or HDB3 (E3) format and converts the data into the appropriate pulse shapes for transmission over coaxial cable via a 1:1 transformer.
In the receive direction, the XRT73L04B performs equalization on incoming signals, performs Clock Recovery, decodes data from either B3ZS or HDB3 format, converts the receive data into TTL/CMOS format, checks for LOS or LOL conditions and detects and declares the occurrence of Line Code Violations.
技术特性- Incorporates an improved Timing Recovery circuit and is pin and functional compatible to XRT73L04A
- Meets E3/DS3/STS-1 Jitter Tolerance Requirements
- Contains a 4-Wire Microprocessor Serial Interface
- Full Loop-Back Capability
- Transmit and Receive Power Down Modes
- Full Redundancy Support
- Uses Minimum External components
- Single +3.3V Power Supply
- Low Power CMOS design
- 5V tolerant I/O
- -40°C to +85°C Operating Temperature Range
- Available in a Thermally Enhanced 144 pin LQFP package
- Pb-Free, RoHS Compliant Versions Offered
数据手册S应用指南电路图Product Change Notification | 产品应用- Digital Cross Connect Systems
- CSU/DSU Equipment
- Routers
- Fiber Optic Terminals
- Multiplexers
- ATM Switches
| 规格 | 参数 | | 频道数量 | 4 | | 数据传输速率(s) | DS3, E3, STS-1 | | Clk Rec | Yes | | 短途/长途 | n/a | | 温度.范围 | Ind. | | Op Pwr Sup/ Max Cur | 3V | | 封装 | TQFP-144 | | Recommended | |
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订购型号
| 器件型号 | 封装编码 | 最低温度 | 最高温度 | 状态 |
|---|
| XRT73L04BIV | LQFP144 | -40 | 85 | EOL |
| XRT73L04BIV-F | LQFP144 | -40 | 85 | Active |
