描述 Description

The SY89295U is a programmable delay line that delays the input signal using a digital control signal. The delay can vary from 3.2ns to 14.8ns in 10ps increments. In addition, the input signal is LVPECL, uses either a 2.5V ±5% or 3.3V ±10% power supply, and is guaranteed over the full industrial temperature range (-40°C to +85°C).The delay varies in discrete steps based on a control word. The control word is 10-bits long and controls the delay in 10ps increments. The eleventh bit is D[10] and is used to simultaneously cascade the SY89295U which allows for a larger delay range. In addition, the input pins IN and /IN default to an equivalent low state when left floating. Further, for maximum flexibility, the control register interface accepts CMOS or TTL level signals.For applications that require an analog delay input, see the SY89296L which is a programmable delay chip with fine tune control. The SY89295U and SY89296U are part of Micrel's high-speed, Precision Edge??product line.

特性 Features

? Precision LVPECL programmable delay line
? Guaranteed AC performance over temperature and voltage:
? >1.5GHz fMAX
? <160ps rise/fall times
? Low-jitter design:
? <10psPP?total jitter
? <2psRMS?cycle-to-cycle jitter
? <1psRMS?random jitter
? Programmable delay range: 3.2ns to 14.8ns in 10ps increments
? Increased monotonicity over the MIC100EP195
? ±10ps INL
? VBB?output reference voltage
? Parallel inputs accepts LVPECL or CMOS/LVTTL
? Low voltage operation: 2.5V ±5% and 3.3V ±10%
? Industrial -40°C to +85°C temperature range
? Available in 32-pin (5mm x 5mm) MLF??and 32-pin TQFP packages

簡介

SY89295U屬于集成電路（IC）的延遲線。由制造生產(chǎn)的SY89295U延遲線時鐘延遲線產(chǎn)品族中的產(chǎn)品屬于數(shù)字器件，用于在數(shù)字信號中引入時間延遲，以便將提交給器件輸入的信號躍遷，經(jīng)過某一已知時間之后在輸出端復(fù)現(xiàn)。它們常用于高速數(shù)字系統(tǒng)，以校正或補償不同信號路徑之間的信號傳播時間的偏差。這些器件可用于產(chǎn)生固定、可選或可變持續(xù)時間的延遲。