Texas Instruments DS125DF111 低功耗多速率双通道重定时器
德州仪器 DS125DF111 低功耗多速率双通道重定时器是集成了信号调节功能的双通道（1 路双向）重定时器。DS125DF111 每一通道包含一个输入连续时间线性均衡器（CTLE）、数据时钟恢复（CDR）及发射驱动器。DS125DF111 加上其片上判决反馈均衡器 (DFE)，可以增强 长距离、有失真的、串扰受损型高速串行链路的到达率和稳健性，其可调传输 VOD: 600 到 1300 mVp-p，实现 BER < 1x10-15。对于不太苛刻的应用/互连器件，可关闭 DFE，实现同样的 BER 性能。DS125DF111 和 DS110DF111 器件在引脚上兼容。DS125DF111 每个通道均可独立锁定至速率范围为 9.8 至 12.5 Gbps 的特定串行数据，或者这些数据速率的任何受支持的子速率。支持的数据速率可通过 SMBus 使用一个预编程表或通过按需定制方式来选择。这简化了系统设计，并降低了总体成本。
特性
- Pin-compatible retimer family
- DS110DF111 with DFE: 8.5 - 11.3GHz
- DS125DF111 with DFE: 9.8 - 12.5GHz
- Adaptive CTLE: 33dB max. boost at 6.25GHz
- Self-tuning 5-tap DFE
- Raw equalized and retimed data loopback
- Adjustable transmit VOD: 600 to 1300mVp-p
- Settable Tx de-emphasis driver 0dB to -12dB
- Low power consumption: 220mW/channel
- Locks to half/quarter/eighth data rates for legacy support
- On-chip eye monitor (EOM), PRBS generator
- Input signal detection, CDR lock detection/indicator
- Single 3.3V or 2.5V power supply
- SMBus, EEPROM, or pin-based Ccnfiguration
- 4mm × 4mm, 24-Pin QFN package
- -40°C to +85°C operating temperature range
Functional Diagram
Evaluation Module
Texas Instruments DS125DF111EVM 9.8-12.5Gbps Retimer Evaluation Module (EVM) is a high bandwidth platform for evaluation of the DS125DF111. It includes an SMA interface to evaluate the DS125DF111 dual channel (1-lane bidirectional) retimer with integrated signal conditioning. The DS125DF111 includes an input Continuous-Time Linear Equalizer (CTLE), clock and data recovery (CDR), and transmit driver on each channel.
发布日期: 2014-03-19
| 更新日期: 2022-03-11