光纖通信6G晶振,M252048LN75.000MHz,MTRONPTI差分晶體振蕩器參數表

Parameter

Symbol

Min.

Typ.

Max.

Units

Conditions

Frequency Range

F0

75

MHz

Frequency Stabilities

vs. Operating Temperature

ΔF/F

See ordering information

ppm

Includes initial tolerance @ +25°C, deviation over operating temperature.

vs. Aging

-3.0

+3.0

ppm

1st year

RF Output

LVPECL Compatible

Output Load

50 Ω to (VCC- 2) or equivalent

Symmetry (duty cycle)

TDC

45

55

%

@ 50% of waveform

Logic Level “1”

VOH

VCC- 1.085

VCC- 0.880

V

VCC= 3.3V

VCC- 1.085

VCC- 0.740

V

VCC= 2.5V

Logic Level “0”

VOL

VCC- 1.830

VCC- 1.555

V

VCC= 3.3V

VCC- 1.830

VCC- 1.305

V

VCC= 2.5V

Rise/Fall Time

TR/TF

0.6

ns

20% to 80% of waveform

Enable/Disable or Standby Logic

70% VCC or N/C

V

Pad 1 or Pad 2 Outputs Enabled

30% VCC

V

Pad 1 or Pad 2 Outputs disabled to HIGH Impedance State, Oscillator Stops

Start-up Time

TSU

5

ms

Tambient= +25°C

Other Parameters

Phase Jitter (RMS)

ΦJ

0.045

ps

12 KHz to 20 MHz 156.25HMz

Operating Voltage and Current

Operating Voltage

VCC

3.135

3.300

3.465

V

M2520

2.375

2.500

2.625

V

M2521

Operating Current

ICC

70

mA

光纖通信6G晶振,M252048LN75.000MHz,MTRONPTI差分晶體振蕩器尺寸圖

光纖通信6G晶振,M252048LN75.000MHz,MTRONPTI差分晶體振蕩器

差分晶振有不同的輸出信號,LV-PECL,LVDS,HCSL,是差分晶振通用的輸出信號.一般為六腳貼片石英晶振,能夠很容易地識別小信號,能夠從容精確地處理'雙極'信號,對外部電磁干擾（EMI）是高度免疫的.實現高頻高精度等要求,更加保障了各種系統參考時鐘的可靠性,具有高性能,低功耗,低噪聲,低抖動,低損耗等特點.被廣泛用于通訊設備,機頂盒,光端機,安防設備及各種頻率控制設備上.