QUARTZ
EURO
EMF576P Series PECL TCXO
PECL 7 x 5 x 2.8mm SMD, 'F' Group Specification
Miniature 7 x 5 x 2.8mm ceramic SMD package
Frequency range: 38.880MHz to 432.0MHz
Supply voltage 3.3 Volts
Less than 1ps phase jitter, ideal for SONET, xDSL
RoHS compliant
EMF576P - OUTLINES AND DIMENSIONS
DESCRIPTION
EMF576P series TCXOs are packaged in a miniature 6 pad 7 x 5 x
2.8mm ceramic SMD package. With differential PECL output,
tolerances are available from ±1.0ppm over -30° to +75°C. The part
has a 0.01mF decoupling capacitor built in.
SPECIFICATION
Product Series Code
TCXO:
EMF576P
VCTCXO:
VEMF576P
Frequency Range:
Output Waveform:
38.880MHz to 432.0MHz
Differential PECL
Initial Calibration Tolerance:
Standard Frequencies:
<±2.0ppm at +25°±2°C
38.880, 40.0, 50.0, 54.0, 64.0, 65.536,
77.76, 80.0, 100.0, 128.0, 155.250,
160.0, 200.0, 204.8, 311.04, 320.0
and 409.60MHz (Partial list)
Operating Temperature Range:
Frequency Stability
vs. Ageing:
See table
(see table)
±1.0 ppm max. first year
±0.3 ppm max. ±5% change
±0.3 ppm max. ±10% change
±1.0ppm max. for one reflow
(Measured after 24 hours)
+3.3 Volts
vs. Voltage Change:
vs. Load Change:
vs. Reflow (SMD type):
Supply Voltage:
Output Logic Levels
Logic High:
OH
V
V
V
V
= 2.275V (min.)
= -1.025V (min.)
= 1.680V (max.)
= -1.620V (max.)
DD
OL
DD
Logic Low:
Rise and Fall Times
VEMF576P VOLTAGE CONTROL SPECIFICATION
<150MHz = 0.7ns max, 150 to 320MHz = 0.55ns max.
<320MHz = 0.45ns max.
Control Voltage:
Frequency Deviation: ±6.0 ppm min. with Vcon = +1.5±1.0V
Slope Polarity:
Linearity:
+1.5±1.0Volts
Duty Cycle:
50%±5%
Positive (increase of control voltage increases
output frequency.)
6% typical, 10% maximum
Start-up Time:
5ms typical, 10ms max.
Current Consumption
38.880 to 100MHz:
100.0 to 320MHz:
320 to 432.0MHz:
75mA max.
90mA max.
100mA max.
SSB PHASE NOISE at 25°C
DD
Output Load:
Storage Temperature:
50W to V -2.0 Volts
Offset
10Hz
100Hz
1kHz
10kHz
100kHz
-55° to +125°C
at 155.520MHz
(dBc/Hz)
-62
-92
-120
-132
-128
Phase Jitter (RMS) (12kHz to 20MHz): 0.4ps typ., 0.5ps max
Part =
EMF576P33
at 311.020MHz
(dBc/Hz)
-59
-86
-116
-129
-124
ENABLE/DISABLE FUNCTION
Pad 2 not connected: PECL and differential PECL outputs enabled.
PERIOD JITTER
Disable:
Referenced to Ground (threshold) Oscillator
is always on, buffer stage is disabled.
Disable current: 50mA max. (at 0.0V),
disable time 10ns max.
Frequency (MHz)
RMS (typ.)
38.880
2.5ps
77.760
2.5ps
155.520
622.080
3.0ps
3.0ps
Enable:
Pad 2 >0.45VCC Ground (threshold) Enable
time 10ns plus one period of output freq.
Peak to Peak
20.0ps
18.0ps
20.0ps
25.0ps
PART NUMBERING SCHEDULE
FREQUENCY STABILITY OVER TEMPERATURE
Example:
EMF576P33-204.80-2.5/-30+75
Stability (ppm)
0 ~ +50
±1.0
±2.0
±2.5
±3.0
±4.0
±5.0
Series Description
TCXO = EMF576P
VCTCXO = VEMF576P
P
ASK
X
P
P
P
P
X
P
P
P
P
X
P
P
P
P
P
P
P
P
P
-10 ~ +60
-20 ~ +70
-30 ~ +75
-40 ~ +85
Temp.
Range (°C)
Supply Voltage
P
P
P
33 = 3.3 VDC
X
P
Frequency (MHz)
Stability over OTR (±ppm)
Operating Temperature Range (OTR) (°C)
Lower and upper limits
X
ASK
ASK
P = available, x = not available, ASK = call Technical Sales
EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE
Tel: +44 (0)1460 230000 Fax: +44 (0)1460 230001 info@euroquartz.co.uk www.euroquartz.co.uk