EG2102 LVDS Rev 1.4 35D
3.3V operation LVDS SAW Oscillator
EG-2102CA-L
♦ Features
• Generates high frequency clock from a high stability SAW (surface acoustic wave) resonator.
• 3.3V-LVDS output.
• Very low jitter/low phase noise.
• Small SMD in 7x5mm, Max1.4mm height, ceramic package.
♦ Applications
• Gigabit Ethernet, Fibre channel, Infini Band, PCI-express, Rapid IO, Hyper Transport, Memory clock, CPU clock
♦ Absolute Maximum Ratings
Item Symbol Unit MIN. TYP. MAX. Condition
Supply Voltage VCC V -0.5 +4.0 VCC – GND
Storage temperature Tstg °C -40 +100 Stored as bare product
Solder heat resistance Tsol Max. 240°C x Max. 10s x 2 times
♦ Operating range
Item Symbol Unit MIN. TYP. MAX. Condition
Supply voltage VCC V 3.0 3.3 3.6
0 +70 P version Operating temperature Topr °C -5 +85 R version
Output load RL Ω 100 Differential resistor
♦ Frequency characteristics (VCC=3.0 to 3.6,GND=0.0V,Load=100Ω)
Item Symbol Unit MIN. TYP. MAX. Condition
Output frequency Range fosc MHz 53.125 700
-100 +100 H version, *1, 53.125 to 700MHz Frequency Stability df/f0 ppm -50 +50 G version, *1, 100 to 700MHz
*1 This includes initial frequen cy tolerance, temperature, supply voltage variation and loading variation. Please refer to Part Numbering Guide (page3).
♦ Electrical characteristics (VCC=3.0 to 3.6,GND=0.0V,Load=100Ω)
Item Symbol Unit MIN. TYP. MAX. Condition
Start up time Tosc ms 10 t=0 at VCC=3.135V
Current consumption IOP mA 30 40 fosc<=500MHz
35 45 fosc>500MHz
OE High level input voltage VIH V 0.7VCC
OE Low level input voltage VIL V 0.3VCC
OE High level input current IIH uA 1 OE= VCC
OE Low level input current IIL uA -200 -20 OE=GND
Differential output voltage VOD mV 247 350 454 VOD1 ,VOD2
Change to VOD dVOD mV 50 dVOD=VOD1 - VOD2
Offset Voltage VOS V 1.125 1.25 1.375 VOS1 ,VOS2
Change to VOS dVOS mV 150 dVOS=VOS1 - VOS2
48 52 V version: <=175MHz
45 55 53.125M to 350MHz
Duty
at outputs crossing point tw/t %
40 60 >350M
Output Rise time tTLH ps 600 20-80% of VOD
Output Fall time tTHL ps 600 80-20% of VOD
UI 0.043x10-3 53.125 to 700MHz Phase Jitter *2
Offset=12KHz to 20MHz
TPJ ps 0.07 1 @625MHz
tRJ ps 3 4 σ of Random Jitter Period Jitter *3
n=50000 samples tp-p ps 25 40 Peak to Peak of jitter distribution
Accumulated Jitter *3
n=2 to 50000 cycles tacc ps 4 5 σ of Total jitter distribution
*2 Measured by SSB phase noise test equipment.
*3 Measured by Time interval analyzer or oscilloscope.
EPSON ELECTRONICS AMERICA, INC.
www.eea.epson.com
EG2102 LVDS Rev 1.4 35D
♦Test circuit
♦ Timing chart
♦ External Dimensions ( Unit : mm )
1.40
E EG-2102
150.000L
HPA21M
A
7.0 ±0.2 5.08
1.4 Max
5.0 ±0.2
0.70
2.60 1.10
#3 #2
#1
#1
#4 #5 #5 #6 #6 #4
#2 #3
No.
#1
#2
#3
#4
Pin Name
OE
N.C.
GND
OUT
#5
#6 OUT
VCC
• Soldering position
(Metallize)
1.600.94
5.08
1.50
3.90
2.40
Bypass capacitor
0.01 to 0.1 µF
By-pa ss capaci t or
10µF
Power
Supply
OUT
IOP
OE 3
4
21 GND
Vcc Test Point
A
56 OUT
NC
Test Point
100Ω
OE
50Ω Line Impedance
Outputs crossing
20%
Vcc
VOD Differenti al Voltage
GND
t
tw
tTHL
tTLH
Duty=tw/t x 100
80%
OUT
OUT
VOS Offset Voltage
EPSON ELECTRONICS AMERICA, INC.
www.eea.epson.com
EG2102 LVDS Rev 1.4 35D
♦ Part Numbering Guide
*1 Available combination : xHPA, xHPN, xHRA, xHRN, xGPN
For xGPA and xGRN stability, please contact Epson.
xGRA is not available.
*2 V (Duty +/-2%) version is available under 175MHz.
♦ Standard Frequency List
53.1250 *3 62.5000 *3
100.0000 106.2500 125.0000 133.0000 155.5200 156.2500
159.3750 161.1328 *4 200.0000 212.5000 250.0000 311.0400
312.5000 322.2656 *5 400.0000 425.0000 500.0000
622.0800 625.0000 644.5313 *6
Please round off 5th digit and specify 4-digit accuracy under decimal point.
*3 available only xHPA and xHPN.
Nominal frequency: *4=161.1328125MHz, *5=322.265625MHz, *6=644.53125MHz
EPSON ELECTRONICS AMERICA, INC.
www.eea.epson.com
EG-2102CA - 156.2500M - L H P A
Stability condition A: Including 10yrs Aging N: Excluding Aging
Temperature Range P: 0 to +70C R: - 5 to +85C
Frequency Stability H: +/-100ppm G: +/-50ppm
Output L: LVDS V: LVDS (Duty +/-2%)*2
Output Frequency : see Standard frequency list