EURO
QUARTZ
Features
Frequency Range 10MHz to 460MHz
Frequency Stability ±10, ±25 or ±50ppm
Operating Voltage: 1.71V to 3.60V
Operating Temperature Range
Industrial: -40° to +85°C
Ext. Commercial: -20° to +70°C
High Supply Noise Rejection: -50dBc
Short Lead Time
Ultra-Miniature Footprints
2.5 x 2.0 x 0.85mm
3.2 x 2.5 x 0.85mm
5.0 x 3.2 x 0.85mm
7.0 x 5.0 x 0.85mm
Excellent Shock & Vibration Resistance
Qualified to MIL-STD-883
High Reliability
Low Current Consumption
Supply Voltage from 2.25 to 3.6 Volts
Standby and Output Enable Function
LVDS and HCSL versions available
EMEM1102/1122 - MEMS OSCILLATOR
10MHz to 460.0MHz
Page 1 of 4
Low Jitter Precision LVPECL Oscillator
Description
The Euroquartz EMEM1102 and EMEM1122 series of high performance
oscillators utilize MEMS (Micro Electro-Mechanical System) technology,
offering excellent jitter and stability performance over a wide range of
supply voltages and temperature ranges. The EMEM1102 has a standby
feature allowing it to completely power down when the 'EN' pin is
pulled low; the EMEM1122 outputs are disabled when EN is low.
Both oscillators are available in industry-standard oscillator packages,
including the small 2.5 x 2.0mm and are 'drop-in' replacements for
standard LVPECL quartz crystal oscillators.
Electrical Specifications
Parameter
Supply Voltage
1
Supply Current
I
DD
Symbol
Condition
EN pin low - outputs disabled
EMEM1102
EMEM1122
Includes frequency variations due
to initial tolerance, temp. and
power supply voltage.
1 year @ 25°
T = 25°C
Min.
2.25
Typ.
Max.
3.6
0.095
22
±10
±25
±50
±5
5
Unit
V
mA
20
Frequency Stability
Ageing
Startup Time
2
Input Logic Levels
Input Logic High
Input Logic Low
Output Disable Time
3
Output Enable Time
Enable Pull-up Resistor
Supply Current
Output Logic Levels
Output Logic High
Output Logic Low
Pk to Pk Output Swing
Output Transition Time
3
Rise Time
Fall Time
Frequency
Output Duty Cycle
Period Jitter
Integrated Phase Noise
Notes:
1.
2.
3.
4.
∆f
∆f
T
SU
V
IH
V
IL
T
DA
T
EN
ppm
ppm
ms
V
0.75*V
DD
0.25*V
DD
5
EMEM1102
EMEM1122
Pull-up resistor exists
LVPECL Outputs
Output Enabled, R
L
= 50Ω
R
L
= 50Ω
Single-Ended
V
DD
-1.08
-
800
250
10
48
2.5
200kHz to 20MHz @156.25MHz
100kHz to 20MHz @156.25MHz
12kHz to 20MHz @156.25MHz
0.25
0.38
1.7
460
52
5
20
40
56.5
58
-
-1.55
ns
ms
ns
kΩ
mA
V
mV
ps
MHz
%
ps
RMS
ps
RMS
I
DD
V
OH
V
OL
V
DD
t
R
t
F
F
0
SYM
J
PER
J
PH
20% to 80%
R = 50Ω,
C
L
= 0pF
L
Single Frequency
Differential
2
Pin 6 V
DD
should be filtered with 0.1µF capacitor.
t
SU
is time to 100ppm of output frequency after V
DD
is applied and outputs are enabled.
Output waveform and test circuit figures below define the parameters.
Output is enabled if pad is floated or not connected.
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk
EURO
QUARTZ
Output Enable Modes
EN Pin
High
NC
Low
DSC1102
Outputs Active
Outputs Active
Standby
EMEM1102/1122 - MEMS OSCILLATOR
10MHz to 460.0MHz
Page 2 of 4
Absolute Maximum Ratings
DSC1122
Item
Supply Voltage
Input Voltage
Junction Temp.
Storage Temp.
Soldering Temp.
ESD
HBM
MM
CDM
Min.
-0.3
-0.3
-
-55
-
-
Max.
+4.0
VDD+0.3
+150
+150
+260
4000
400
1500
Unit Condition
V
V
°C
°C
°C 40 sec. max.
V
Low Jitter Precision LVPECL Oscillator
Outputs Active
Outputs Active
Outputs Disabled
Ordering Code
Temp Range
E: -20 to 70
I: -40 to 85
L: -40 to 105
M: -55 to 125
Typical Termination Scheme
Packing
T: Tape & Reel
: Tube
Enable Modes
0: Enable/Standby
2: Enable/Disable
EMEM1102 C I 5
Package
A: 7.0 x 5.0mm
B: 5.0 x 3.2mm
C: 3.2 x 2.5mm
D: 2.5 x 2.0mm
-
125.000
T
Freq. (MHz)
125.000
Stability
1: ±50ppm
2: ±25ppm
5: ±10ppm
Nominal Performance Parameters
(Unless specified otherwise: T = 25°C, V
DD
= 3.3V)
Output Waveform
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk
EURO
QUARTZ
Solder Reflow Profile
EMEM1102/1122 - MEMS OSCILLATOR
10MHz to 460.0MHz
Page 3 of 4
Low Jitter Precision LVPECL Oscillator
MSL1 @ 260°C refer to JSTD-020C
Ramp-up Rate (200°C to Peak Temp.) 3°C/s max.
Preheat Time 150°C to 200°C
60-180s
Time maintained above 217°C
60-150s
Peak Temperature
255-260°C
Time within 5°C of actual peak
20-40s
Ramp-Down Rate
6°C/s max.
Time 25°C to Peak Temperature
8 min max.
PACKAGE DIMENSIONS
7.0 x 5.0mm Plastic Package
5.0 x 3.2mm Plastic Package
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 Email: info@euroquartz.co.uk www.euroquartz.co.uk
嵌入式系统
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