描述 Description

The SY87700AL is a complete clock recovery and data retiming integrated circuit for data rates from 32Mbps up to 208Mbps NRZ. The device is ideally suited for SONET/SDH/ATM 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 SY87700AL also includes a link fault detection circuit.

特性 Features

? 3.3V power supply
? SONET/SDH/ATM compatible
? Clock and data recovery from 32Mbps up to 208Mbps NRZ data stream; clock generation from 32Mbps to 208Mbps
? 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
? Industrial temperature range (-40°C to +85°C)
? Lower power: fully compatible with Micrel's SY87700V, but with 30% less power
? Available in 32-pin ePad-TQFP and 28-pin SOIC packages, (28-pin SOIC is available, but NOT recommended for new designs.)

簡介

SY87700AL屬于集成電路（IC）的應用特定時鐘/定時。由制造生產的SY87700AL應用特定時鐘/定時專用時鐘和計時 IC（集成電路）產品族中的產品主要用于執(zhí)行與時間或頻率信息生成和分配相關的各種操作，適合的設計環(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 音頻設備、藍光光盤播放器、以太網(wǎng)設備、PCIe、SATA、光纖通道接口、車載娛樂總線等。