描述 Description

The SY87701L is a complete Clock Recovery and Data Retiming integrated circuit for data rates from 32Mbps up to 1.25Gbps NRZ. The device is ideally suited for SONET/SDH/ATM and Fibre Channel applications and other high-speed data transmission systems.Clock recovery and data retiming is performed by synchronizing the on-chip VCO directly to the incoming data stream. The VCO center frequency is controlled by the reference clock frequency and the selected divide ratio. On-chip clock generation is performed through the use of a frequency multiplier PLL with a byte rate source as reference.The SY87701L also includes a link fault detection circuit.

特性 Features

·Industrial temperature range (-40°C to +85°C)
·3.3V power supply
·Clock and data recovery from 32Mbps up to 1.25Gbps NRZ data stream, clock generation from 32Mbps to 1.25Gbps
·Complies with Bellcore, ITU/CCITT and ANSI specifications for applications such as OC-1, OC-3, OC-12, ATM, FDDI, Fibre Channel and Gigabit Ethernet as well as proprietary applications
·Two on-chip PLLs:one for clock generation and another for clock recovery
·Selectable reference frequencies
·Differential PECL high-speed serial I/O
·Line receiver input: no external buffering needed
·Link fault indication
·100k ECL compatible I/O
·Available in 32-pin ePad-TQFP and 28-pin SOIC packages (28-pin SOIC is available, but not recommended for new designs)

簡介

SY87701L屬于集成電路（IC）的應(yīng)用特定時鐘/定時。由制造生產(chǎn)的SY87701L應(yīng)用特定時鐘/定時專用時鐘和計時 IC（集成電路）產(chǎn)品族中的產(chǎn)品主要用于執(zhí)行與時間或頻率信息生成和分配相關(guān)的各種操作，適合的設(shè)計環(huán)境較特定，例如 AMD 和 Intel 的中央處理單元 (CPU) 或圖形處理單元 (GPU)、DVD 音頻設(shè)備、藍(lán)光光盤播放器、以太網(wǎng)設(shè)備、PCIe、SATA、光纖通道接口、車載娛樂總線等。