XRT85L61：BITS (Building Integrated Timing Supply) Clock Extractor
The XRT85L61 is an integrated E1, T1, 64KHz Centralized Clock interface for T1 (1.544Mbps) 100Ω, E1 (2.048Mbps) 75Ω or 120Ω applications. The XRT85L61 extracts either 2048kHz or 1544 kHz clock signals from an E1 (2.048MHz), T1 (1.544MHz) inputs respectively or 64kHz, 8kHz or 400kHz clock signals from the 64kHz reference clock input.
The XRT85L61 includes an on-chip crystal-less jitter attenuator with 32 bit FIFO that can either be enabled or disabled.
技术特性- Fully integrated single chip solution for E1, T1 or 64kHz clock synchronization applications.
- Extracts 2048 kHz, 1544 kHz clock and data com-ponents
- Extracts 64 KHz and 8 kHz, 400 Hz clock information
- Line Code Violation alarms
- On-chip digital clock recovery circuit
- Supports 75Ω and 120Ω (E1), 100Ω (T1) applications
- Crystal-less digital jitter attenuator with 32-bit FIFOthat can either be enabled or disabled
- Receive loss of signal (RLOS) output
- Meets Telcordia GR-1244-CORE Section 3.4.1 R3-27 specification
- Meets or exceeds T1 and E1 specifications in ITU G.703, G.775
- Single +3.3V Supply Operation
- Logic inputs accept either 3.3 V or 5 V levels
- 28 pin TSSOP package
- Pb-Free, RoHS Compliant Versions Offered
数据手册S电路图Product Change Notification | 产品应用- Universal Clock Synchronization for G.703 Telecom Formats
- T1/E1 Line Receiver with Clock and Data Recovery
- DSLAM
| 规格 | 参数 | | 64Khz / 8Khz 400Hz modes | | | BITS Rx | | | BITS Tx | | | SSM | |
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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 |
|---|
| XRT85L61IG | TSSOP28 | -40 | 85 | Active |
| XRT85L61IG-F | TSSOP28 | -40 | 85 | Active |
