EMEM1102 Datasheet, PDF (1/4 Pages) EUROQUARTZ limited – Low Jitter Precision LVPECL Oscillator

EURO QUARTZ ^{EMEM1102/1122 - MEMS OSCILLATOR}
Low Jitter Precision LVPECL Oscillator
10MHz to 460.0MHz
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
Electrical Specifications
Page 1 of 4
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.
Parameter
Supply Voltage¹
Supply Current
Frequency Stability
Symbol
Condition
EN pin low - outputs disabled
I^DD
EMEM1102
EMEM1122
Includes frequency variations due
∆f
to initial tolerance, temp. and
power supply voltage.
Min.
2.25
Typ.
20
Ageing
∆f
1 year @ 25°
Startup Time²
T^SU
Input Logic Levels
Input Logic High
V^IH
Input Logic Low
V^IL
Output Disable Time³
T^DA
Output Enable Time
T^EN
Enable Pull-up Resistor
Supply Current
I^DD
T = 25°C
0.75*V^DD
EMEM1102
EMEM1122
Pull-up resistor exists
LVPECL Outputs
Output Enabled, R^L = 50Ω
40
56.5
Output Logic Levels
Output Logic High
V^OH
Output Logic Low
V^OL
Pk to Pk Output Swing
R^L = 50Ω
Single-Ended
V^DD -1.08
-
800
Output Transition Time³
Rise Time
t^R
Fall Time
t^F
20% to 80%
R^L = 50Ω, C^L = 0pF
250
Frequency
F⁰
Single Frequency
10
Output Duty Cycle
SYM
Differential
48
Period Jitter
Integrated Phase Noise
J^PER
200kHz to 20MHz @156.25MHz
J^PH
100kHz to 20MHz @156.25MHz
12kHz to 20MHz @156.25MHz
2.5
0.25
0.38
1.7
Notes:
1. Pin 6 V^DD should be filtered with 0.1µF capacitor.
2. t^SU is time to 100ppm of output frequency after V^DD is applied and outputs are enabled.
3. Output waveform and test circuit figures below define the parameters.
4. Output is enabled if pad is floated or not connected.
Max.
3.6
0.095
22
±10
±25
±50
±5
5
0.25*V^DD
5
5
20
58
-
V^DD -1.55
460
52
2
Unit
V
mA
ppm
ppm
ms
V
ns
ms
ns
kΩ
mA
V
mV
ps
MHz
%
ps^RMS
ps^RMS
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: [phone] Fax: [phone] Email: [e-mail] www.euroquartz.co.uk