Advance Information
S3T02 Series
3.3V CMOS
Stratum 3 (V)TCXO
Actual Size = 21 x 14mm
Product Features
• Frequencies available between 12.8 and 20 MHz
• Stratum 3 holdover and lifetime compliant (GR-1
244-CORE)
• SONET Minimum Clock (SMC) holdover and
lifetime compliant (GR-253-CORE)
• Control Voltage Function for synchronization or
calibration
• Low power consumption and fast start-up to replace
OCXO
• RFI-shielded and high-Q crystal oscillator for low
output noise
• SMT design for automated assembly and reflow
Packaging Outline
5.71 max
.225
Pin Functions
Pad Function
1
7
8
14
Control voltage (optional)
Ground/Case
Output
Supply voltage
20.57
max
.810
13.84 typ
.545
Product Description
The S3T02 series is a temperature compensated crystal
oscillator with optional voltage control function that
achieves Stratum 3 holdover and lifetime performance.
The device is constructed with a hermetically sealed
crystal oscillator and a temperature compensation
circuit mounted on a 21x14mm FR4 base and covered
with an RFI-shielded metal lid. The device is available
on tape and reel for automated pick-and-place
assembly.
15.24
max
.600
Dimensions are in mm/inches.
Common Frequencies
Contact SaRonix for additional frequencies
12.8000 MHz
19.4400 MHz
20.0000 MHz
Applications
The S3T02 series Stratum 3 (V)TCXO is an ideal clock
reference for timing control in telecommunications
network elements, including:
• Wireless base stations
• Line Cards with SMC holdover in SONET/SDH
network equipment
• Timing Control Cards in T1/E1, T3/E3, multi-service
and SONET/SDH network equipment.
Ordering Information
SaRonix
Model
Frequency Stability
3 = Stratum 3 lifetime only
(SMC holdover and lifetime)
H = Stratum 3 holdover and
lifetime
S 3T02 3 V - 19.4400 (T)
Packaging
(T) = Tape & Reel
full reel increments
Blank = Bulk packaged
Frequency
(MHz)
Modulation Function
Blank = TCXO only (pin 1 N/C)
V = Voltage controlled (pin 1)
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
1
All specifications are subject to change without notice.
DS 257 Rev 01 | 08/20/04
Advance Information
S3T02 Series
3.3V CMOS
Stratum 3 (V)TCXO
Electrical Performance
Parameter
Min.
Typ.
Max.
Units
Notes
Output frequency (FN)
Supply voltage
Supply current
Calibration tolerance
Stratum 3 lifetime
Frequency stability
Operating temperature
Output logic 0, VOL
Output logic 1, VOH
Output load
Duty cycle
Rise and fall time
Jitter, phase
Stratum 3 holdover
(as specified)
12.8
+3.135
-1.5
-4.6
-0.28
0
VDD - 0.2
+3.3
20
+3.465
20
+1.5
+4.6
+0.28
0.37
+70
+0.2
15
MHz
V
mA
ppM
ppM
ppM
ppM
°C
V
V
pF
%
ns
ps RMS (1-σ)
ps RMS (1-σ)
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
As specified
See Note 1 below
See Note 2 below
See Note 3 below
See Note 4 below
IOL ≤ 0.2mA
IOH ≥ -0.2mA
measured @ 50% VDD
measured 10/90%
12 kHz to 20 MHz
extrapolated freq. band
10 Hz to 20 MHz
extrapolated freq. band
10 Hz offset
100 Hz offset
1 kHz offset
10 kHz offset
100 kHz offset
45
55
5
1
5
-70
-100
-125
-135
-145
Phase Noise
Notes:
1.
2.
3.
4.
Relative to the specified nominal frequency (F
N
), measured at RMT within 24 hours after first assembly reflow and control voltage held at center (if applicable).
Relative to the specified nominal frequency (F
N
), includes frequency deviation due to: operating temperature changes, rated input (supply) voltage changes, load
changes, calibration tolerance, aging (20 years at 40°C average ambient operating temperature), shock and vibration.
Versus temperature. Relative to frequency at RMT with 2°C min
-1
maximum slew rate; all other conditions as per GR-1244-CORE.
Total. Peak-to-peak absolute deviation between +10°C and +50°C in 24 hours with 2°C min
-1
max slew rate; all other conditions as per GR-1244-CORE.
Frequency Modulation Function (optional, as specified)
Parameter
Min.
Typ.
Max.
Units
Notes
Absolute pull range (APR)
Control voltage range
Monotonic linearity
Input impedance
Modulation bandwidth
Notes:
1
±10
+0.3
+1.65
+3.0
10
60
0.1
ppM
VDC
%
kΩ
kHz
See Note 1 below
Positive transfer slope
Control Voltage pin
-3dB
APR is relative to the nominal output frequency F
N
(as specified); APR is inclusive (net) of frequency deviation due to stability (all rated conditions).
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
2
All specifications are subject to change without notice. DS 257 Rev 01 | 08/20/04
Advance Information
S3T02 Series
3.3V CMOS
Stratum 3 (V)TCXO
Typical Phase Noise
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
3
All specifications are subject to change without notice. DS 257 Rev 01 | 08/20/04
Advance Information
S3T02 Series
3.3V CMOS
Stratum 3 (V)TCXO
Performance over Temperature (Stratum 3 Holdover option "H")
Absolute Maximun Ratings
Parameter
Min.
Typ.
Max.
Units
Notes
Storage temperature
Control voltage
Supply voltage
-40
0
+85
V
CC
+5.5
°C
V
V
Test Circuit
mA
M
14
8
7
Test Point
POWER
SUPPLY
V
M
0.01µF
1
15pF (incl.
probe and
fixture
capacitance)
Control Voltage
(as
specified)
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
4
All specifications are subject to change without notice. DS 257 Rev 01 | 08/20/04
Advance Information
S3T02 Series
3.3V CMOS
Stratum 3 (V)TCXO
Output Waveform
t
f
t
r
V
OH
50%
V
DD
V
OL
t
A
Duty cycle = 100%
x
(t
A
)
/
(t
A
+ t
B
)
t
B
90%
10%
Reflow Soldering Profile
Temperature – °C
Reflow 215 ±5°C
Cooling
220
200
150
4°C/sec max
Preheat 183 ±10°C
4°C/sec max
Time
1 – 2 minutes
5 sec min
30 sec max
Reliability Test Ratings
This product is rated under the following test conditions:
Type
Parameter
Test Condition
Mechanical
Mechanical
Mechanical
Mechanical
Mechanical
Mechanical
Environmental
Environmental
Environmental
Environmental
Shock
Solderability
Terminal strength
Solvent resistance
Gross leak
Fine leak
Thermal shock
Moisture resistance
Vibration
Resistance to soldering heat
MI-STD-883, Method 2002, Condition A
MI-STD-883, Method 2003
MI-STD-883, Method 2004, Condition D
MIL-STD-202, Method 215
Not applicable to external housing
Not applicable to external housing
MIL-STD-883, Method 1011, Condition A
MIL-STD-883, Method 1004
MIL-STD-883, Method 2007, peak acceleration = 10g
MIL-STD-202, Method 210, Condition I
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
5
All specifications are subject to change without notice. DS 257 Rev 01 | 08/20/04
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