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491-28.0M-3EN-T

491-28.0M-3EN-T

  • 厂商:

    OSCILENT

  • 封装:

  • 描述:

    491-28.0M-3EN-T - 4 Pad PCB PECL Output - Oscilent Corporation

  • 详情介绍
  • 数据手册
  • 价格&库存
491-28.0M-3EN-T 数据手册
Oscilent Corporation | 491 Series SMD Crystal Oscillators Page 1 of 2 SMD Oscillators Series Number Package Description Last Modified 491 4 Pad PCB PECL Output Jan. 01 2002 FEATURES - Wave form symmetry of 40/60% - PECL output - Industry standard 4 Pad PCB SMD Package - RoHs / Lead Free compliant OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS PARAMETERS Output Logic Input Voltage (VDD) Frequency Range (fO) Operating Temperature (TOPR) Storage Temperature (TSTG) Overall Frequency Stability CONDITIONS (a) Frequency Tolerance (b) Temperature Stability (c) Input Voltage Stability (d) Load Stability Input Current (IDD) Aging Rise Time (TR) Fall Time (TF) Output Voltage High "1" VOH Output Voltage Low "0" VOL Load Duty Cycle Start-Up Time (TS) Jitter @ 25°C 20% to 80% of Waveform 20% to 80% of Waveform PECL PECL 50% of Waveform RMS CHARACTERISTICS Positive ECL Square Wave (PECL) 3.3 ±10% 5.0 ±10% UNITS VDC MHz °C °C PPM mA PPM/Y nS nS VDC VDC Ohms % mS ps 19.440 ~ 180.0 (Fund, Third, Fifth / UM-1) 0 ~ +70 (Std.) / -40 ~ 85 (Option) -55 ~ +125 ±20 (0 ~ +70°C Only), ±25, ±50, ±100 max. Inclusive of Overall Stability Inclusive of Overall Stability (Operating Temperature) Inclusive of Overall Stability (VDD ±5%) Inclusive of Overall Stability (RL ±5%) 80 max. ±1 max. 2 max. 2 max. VDD - 1.025 min. VDD - 1.620 max. 50 50 ±10 (Std.) / 50 ±5 (Option) 10 max. 3.5 max. 120 max. Oscilent Corporation | 491 Series SMD Crystal Oscillators Page 2 of 2 PIN CONNECTIONS #1 Complimentary Output (CO) OR No Connection (NC) #2 Ground #3 Output #4 Vdd PART NUMBER GUIDE Series Number Frequency Voltage Supply Option Frequency Tolerance & Stability (max.) Operating Temp. (° C) Duty Cycle Pin 1 Connection 491 Oscilent SMD Oscillators - 28.0 M Enter your freq. e.g. 28.0M = 28.00 MHz -5 5 = 5VDC 3 = 3.3VDC D= E= F= G= D ±100 PPM ±50 PPM ±25 PPM ±20 PPM N Blank* = 0~+70 N = -40~+85 -T Blank*= 50±10% T = -50±5% CO CO = Complimentary Output NC = No Connection NOTE: - Deviations on all parameters available. Please consult Oscilent for details. DEFINITIONS: - Click on the characteristic names above, for definitions of the particular characteristic. *STANDARDS: - "Blank" part number selections, indicate standard variables for the particular characteristic. PACKAGING: - Add -TR for Tape/Reel. Click here for tape/reel specifications Oscilent Corporation - CALL 949.252.0522 18195 East McDurmott Street . Building D . Irvine . CA 92614 . USA Fax: 949.252.0599 . E-Mail: Sales@Oscilent.com Series No.: 491 Crystal Oscillators | Quartz Crystal | TCXO | VCXO | IF SAW Filter | RF SAW Filter | Ceramic Resonator Crystal Filter | Ceramic Filter | SAW Filter / SAW Devices | Site Map
491-28.0M-3EN-T
物料型号: - 系列编号:491 - 封装:Pad PCB - 描述:PECL Output - 最后修改日期:2002年1月1日

器件简介: - 该器件为表面贴装晶体振荡器,具有40/60%的波形对称性,PECL输出,符合行业标准的4 Pad PCB SMD封装,符合RoHS/无铅标准。

引脚分配: - #1:互补输出(CO)或无连接(NC) - #2:地(GND) - #3:输出 - #4:供电(Vdd)

参数特性: - 供电电压(VDD):3.3±10%至5.0±10% VDC - 频率范围(fo):19.440~180.0 MHz(基频、三倍频、五倍频/UM-1) - 工作温度(TOPR):0~+70°C(标准)/-40~+85°C(可选) - 存储温度(TSTG):-55~+125°C - 整体频率稳定性:+20 PPM(仅0~+70°C),±25、±50、±100 PPM最大值 - 频率容差、温度稳定性、供电稳定性、负载稳定性:均包含在整体稳定性中 - 输入电流(IDp):最大80 mA至120 mA - 老化率:25°C时,每年±1 PPM最大值 - 上升时间(TR)和下降时间(TF):波形的20%至80%,最大2 ns - 输出高电平“1”(VOH):PECL,最小VDD-1.025 VDC - 输出低电平“0”(VOL):PECL,最大VDD-1.620 VDC - 负载:50 Ohms - 占空比:波形的50%,标准为50±10%,可选为50±5% - 启动时间(Ts):最大10 ms - 抖动(Jitter):RMS最大3.5 ps

功能详解: - 该振荡器提供PECL输出,具有低抖动和良好的波形对称性,适用于需要稳定时钟信号的应用。

应用信息: - 适用于需要稳定时钟信号的各种电子设备,特别是在通信和计算机系统中。

封装信息: - 封装类型:DIL OMS Case:60 - 封装尺寸:最大6.0 mm x 9.5 mm,高度1.3±0.1 mm
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