LDGPON155

TM
Application Specific Crystal Oscillator 5.0 x 3.2mm
2.5V LVDS Low Jitter 155.52MHz GPON XO
LDGPON155
ASSP XO™ for Networking
5.0 x 3.2mm Ceramic SMD
Package: (Scale: none, Dimensions are in mm)
Product Features
Recommended Land Pattern:
• Very low phase jitter
• Thicker crystal for improved reliability
• Pb-free & RoHS compliant
• Industrial temperature range
Product Description
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
The LD series 2.5V, 155.52MHz crystal clock
oscillator achieves superb jitter for GPON
applications. The output clock signal,
generated internally with a custom oscillator
design, is compatible with LVDS logic levels.
The device, available on tape and reel, is
contained in a 5.0 x 3.2mm surface-mount
ceramic package.
Pin Functions:
Applications
• GPON Optical Network Unit (ONU)
• GPON Optical Line Termination (OLT)
Pin
Function
1
OE Function
2
N/C
3
V EE
4
OUT
5
OUT
6
VCC
*Extended high frequency power decoupling is recommended (see test circuit for minimum
• GPON Gateway
recommendation). To ensure optimal performance, do not route RF traces beneath the
package.
CREATED USING CADSTD LITE FREEWARE FROM WWW.CADSTD.COM. NON-COMMERCIAL USE ONLY.
Part Ordering Information:
LDGPON155
SaRonix-eCera™ is a Pericom® Semiconductor company
•
US: +1-408-435-0800 TW: +886-3-4518888 • www.pericom.com
12-0053
All specifications are subject to change without notice.
LDGPON155 Rev E
07/13/12 1
2.5V LVDS Low Jitter 155.52 MHz GPON XO LDGPON155
TM
Application Specific Crystal Oscillator 5.0 x 3.2mm
Electrical Performance
Parameter
Min.
Typ.
Output Frequency
Max.
Units
155.52
Supply Voltage
2.25
MHz
2.75
V
Supply Current, Output Enabled
80
mA
Supply Current, Output Disabled
30
mA
2.50
±50
ppm
+70
°C
Frequency Stability
Operating Temperature Range
-20
Output Logic 0, VOL
0.90
1.10
Output Logic 1, VOH
See Note 1 below
V
1.43
Output Load
Notes
1.60
V
100Ω & 5pF
Duty Cycle
45
output requires termination
55
%
Measured 50% waveform
Rise and Fall Time
1.0
ns
Measured 10/90% of waveform
Jitter, Phase RMS (1-σ)
1.0
ps
12 kHz to 20 MHz frequency band
Jitter, pk–pk
40
ps
100,000 random periods
Notes:
1. Stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, initial calibration tolerance (25°C),
aging (5 year at 40°C average effective ambient temperature), shock and vibration.
2. For specifications othere than those listed, please contact sales.
Output Enable / Disable Function
Parameter
Min.
Input Voltage (pin 1), Output Enable
Typ.
Max.
0.7* VCC
Input Voltage (pin 1), Output Disable (low power standby)
0.3* VCC
Units
V
or open
V
Outputs disabled to Hi-Z
Output Disable Delay
200
ns
Output Enable Delay
2
ms
Internal Pull Up Resistance
50
Notes
kΩ
Absolute Maximum Ratings
Parameter
Storage Temperature
Min.
Typ.
-55
Max.
Units
+125
°C
Notes
For the latest product information visit: http://www.pericom.com/products/crystals-and-crystal-oscillators/assp-xo/?part=LDGPON155
For test circuit go to: http://www.pericom.com/pdf/sre/tc_lvds.pdf
For soldering reflow profile and reliability test ratings go to: http://www.pericom.com/pdf/sre/reflow.pdf
For tape and reel information go to: http://www.pericom.com/pdf/sre/tr_5032_xo.pdf
SaRonix-eCera™ is a Pericom® Semiconductor company
•
US: +1-408-435-0800 TW: +886-3-4518888 • www.pericom.com
12-0053
All specifications are subject to change without notice.
LDGPON155 Rev E
07/13/12 2