SEIKO EPSON CORPORATION Quartz Device Div. Rev.1.3
2.5V LVDS compatible NEW-SAW Oscillator
EG - 2121CA (Product number: Q3805CA1*****00)
• Frequency range: 53.125 ~ 700 MHz
• Frequency stability: +/-50×10-6 , +/-100×10-6
• Operating Temperature: 0 ~ +70 °C / -5 ~ +85 °C
• Package: 5×7×1.4 mm
• Output Control (OE)
• Low consumption: 20mATYP
• Very low jitter. (Fundamental High stability NEW-SAW)
• Heat resistance allows reflow soldering for Pb-Free
• Application: Ethernet(Switch/Router), Fibre Channel(SAN), Serial-ATA(HDD) , DVD(VIDEO) , 1394b etc
1. Absolute Maximum Rating
Item Symbol Min. Typ. Max. Unit Condition
Power supply voltage VCC -0.5 4.0 V
Operating voltage VIN -0.5 VCC+0.5 V
Storage temperature TSTG -40 +100 °C Stored as bare product
2. Electrical Characteristics P: Ta = 0 ~ +70 °C, R: Ta = -5 ~ +85 °C
Item Symbol Min. Typ. Max. Unit Condition
Operating voltage VCC 2.375 2.5 2.625 V
Current consumption I
CC
20 30 mA OE = V
CC
Output disable current I
OE
20 mA OE = GND
Input voltage
V
IN
GND V
CC
V OE Terminal
V
IH
0.7×V
CC
V
OE input voltage V
IL
0.3×V
CC
V
I
IH
1 uA OE = V
CC
OE input current I
IL
-100 -10 uA OE = GND
VOD 247 350 454 mV V
OD1 ,
V
OD2
dVOD 50 mV dV
OD
= |V
OD1
-V
OD2
|
VOS 1.125 1.25 1.375 V Voltage offset (V
OS1
, V
OS2
)
Output voltage*1
dVOS 150 mV dV
OS
= |V
OS1
-V
OS2
|
Start up time t
OSC
10 ms t=0 at V
CC
= 2.375 V
48 52 <=175MHz(V type)
45 55 53.125~350MHz
Duty tw / t 40 60 %
>350MHz
at outputs
crossing
point
Output rise and fall time tR , tF 400 ps 20% ~ 80% of VOD
*Note 1 : DC characteristics / RL=100OHM
3. Frequency Characteristics
Item Symbol Min. Typ. Max. Unit Condition
Output frequency range*2 f0 53.125 700.000 MHz
G -50 +50
Frequency stability H df / f0 -100 +100 ×10-6 P: Ta = 0 ~ +70 °C
R: Ta = -5 ~ +85 °C
tDJ 5 10 ps Deterministic Jitter
tRJ 3 4 ps Random Jitter
tRMS 3 4 ps Sigma
Jitter
tp-p 25 40 ps Peak to Peak
Accumulated Jitter tacc 4 5 ps n = 2 ~ 50,000 cycles
0.044×10-3 UI
Phase Jitter
(12 k to 20 MHz) tPJ 0.29 ps @156.25MHz
*Note 2 : Please contact to EPSON about Standard Frequency.
*Note : Please place a 0.01 uF to 0.1 uF capacitor closely between VCC and GND to obtain stable operation and protest against power line ripple.
NOTICE
• No part of this material may be reproduced or duplicated in any form or any means without the written permission of Seiko Epson.
• Seiko Epson reserves the right to make changes to this material without notice.
• Seiko Epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its application
or use in any product or circuit and, further, there is no representation that this material is applicable to products requiring high level
reliability, such as, medical products.
• Moreover, no license to any intellectual property rights is granted by implication or otherwise, and there is no representation or warranty
that anything made in accordance with this material will be free from any patent or copyright infringement of a third party.
• This material of portions thereof may contain technology or the subject relating to strategic products under the control of the Foreign
Exchange and Foreign Trade Law of Japan and may require an export license from the Ministry of international Trade and industry
or other approval from another government agency.
©
SEIKO EPSON CORPORATION
ELECTRONIC DEVICE MARKETING DEPARTMENT
EPSON ELECTRONICS AMERICA, INC.
HEADQUARTER 150 River Oaks Parkway, San Jose, CA 95134, U.S.A.
Phone: (1)800-228-3964 (Toll free) : (1)408-922-0200 Fax: (1)408-922-0238
EPSON EUROPE ELECTRONICS GmbH
HEADQUARTER Riesstrasse 15, 80992 Munich, Germany
Phone: (49)-(0)89-14005-0 Fax: (49)-(0)89-14005-110
EPSON (CHINA) CO., LTD.
23F, Beijing Silver Tower 2# North RD DongSangHuan ChaoYang District, Beijing, China
Phone: (86) 10-6410-6655 Fax: (86) 10-6410-7319
4F, Bldg.,27, No.69, Guijing Road, Caoheijing, Shanghai, China
Phone: (86) 21-6485-0835 Fax: (86) 21-6485-0775
EPSON HONG KONG LTD.
20/F., Harbour Centre, 25 Harbour Road, Wanchai, Hong kong, China
Phone: (852) 2585-4600 Fax: (852) 2827-2152
EPSON ELECTRONIC TECHNOLOGY DEVELOPMENT (SHENZHEN )CO., LTD.
Flat 16A, 16/F, New Times Plaza, No.1 Taizi Road, Shenzhen, China
Phone: (86) 755-6811118 Fax: (86) 755-6677786
EPSON TAIWAN TECHNOLOGY & TRADING LTD.
10F, No.287, Nanking East Road, Sec.3, Taipei
Phone: (886) 2-2717-7360 Fax: (886)2-2718-9366
EPSON SINGAPORE PTE. LTD.
No.1, Temasek Avenue #36-00, Millenia Tower, Singapore 039192
Phone: (65) 337-7911 Fax: (65) 334-2716
SEIKO EPSON CORPORATION KOREA Office
50F, KLI 63 Building,60 Yoido-dong, Youngdeungpo-Ku, Seoul, 150-763, Korea
Phone: (82) 2-784-6027 Fax: (82) 2-767-3677
Electronic devices information
on WWW server
http://www.epsondevice.com
4. Timing Chart 5.Phase Noise Characteristics
VCC
OE
OUTN
tosc
tR
tF
t
tw
VIL
V
IH
VCC min
Hi-z
OUT
Cross
point
V
OD1
V
OD2
VOS1
V
OS2
80%
20%
OUT-OUTN
GND
VOD1
V
OD2
(VOD)
6. External Dimensions ( Unit : mm ) Test Circuit
No.
#1
#2
#3
#4
Pin Name
OE
N.C.
GND
OUT
#5
#6 OUTN
VCC
1.40
E EG-2121
500.000L
OHRA21MA
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
(Metallize)
1.60
3.90
1.50
5.08
2.40
0.94
•Soldering position
7. Product Codes
EG-2121CA 125.000 L H R A L*** 0~+70
-5~+85
Frequency detail: A*3: All include, N: Standard (without aging)
V*** * * P * * * R *
Temperature Range: P: 0~ +70 °C , R: -5~ +85°C +/-100×10-6 *H** A/N A/N
Frequency Stability: G: +/-50×10-6, J: +/-75×10-6, H: +/-100×10-6 +/-75×10-6 *J** ----- A/N
Output: L: LVDS , V: LVDS(+/-2%) +/-50×10-6 *G** A*4/N N
* Note 3: This includes initial frequency tolerance, temperature, supply voltage variation and 10 years aging. , *Note 4:Contact EPSON
V
CC
OUTN
OE NC
OUT
GND
100
A
+2.5V
Test Point
Test Point
Power
supply
By-pass
capacitor 1
OE
terminal
By-pass
capacitor 2
(1)By-pass capacitor 1(approx. 0.01 uF to 0.1
uF) is placed
closely between VCC to GND.
(2)By-pass capacitor 2 (approx.10 uF) is
placed closely
between VCC to GND.
EG-2121156.25MHzLVDS
-160
-140
-120
-100
-80
-60
-40
1.E+02 1.E+03 1.E+04 1.E+05 1.E+06 1.E+07
frequency
dBc/Hz
