ST1307 Series
3.3V CMOS Ultra Low Jitter
Voltage Controlled Crystal Oscillator (VCXO)
Actual Size = 5 x 7mm
Product Features
• High Q fundamental-mode crystal
• No internal PLL or frequency multiplication
• Very low phase noise
• LVCMOS compatible output
• Commercial and industrial operation
• ±50 ppM stability (or as specified)
• ±50 to ±100 ppM absolute (net) pull range
• RoHS Compliant
Package Outline
½½½½ ½½½
½½½½
Pin Functions
Pad
Function
Control voltage
Output Enable/Disable
Ground
Output
No Connect
Supply voltage
1
2
3
4
½½
½½
½½
½½½½½½½½½
½½½½½½½½½
5
6
½½
½½
½½½½½½½½½
½½½½½½½½½½½
½½
Full Mechanical Drawings page 6.
Dimensions are in mm/inches.
Product Description
The ST1307 is a voltage controlled crystal oscillator
that achieves superb jitter and pullability over a broad
range of operating conditions and frequencies. The
device is constructed with a hermetically sealed,
fundamental-mode quartz crystal resonator exhibiting a
high-Q for exceptional phase noise performance. The
device, available on tape and reel, is contained in a
5x7mm ceramic package.
Common Frequencies
Contact SaRonix for additional frequencies
1.5440
2.0480
6.1760
8.1920
12.2880
12.3520
14.7456
15.0000
16.3840
18.4320
19.4400
20.0000
20.4800
24.5760
25.0000
27.0000
Applications
The ST1307 Series VCXO is an ideal component
in phase locked loop circuits that perform clock
smoothing, clock/data recovery, or frequency
translation and card synchronization functions,
supporting jitter-sensitive applications such as:
• SMPTE-compliant Video networking
• SONET/SDH timing control and line cards
• T1/E1 Platforms
• Satellite and microwave communications
Ordering Information
SaRonix
Model
Stability Tolerance
B = ±50 ppm, 0 to +70°C
E = ±50 ppm, -40 to +85°C
S T1307 B A B - 19.4400 (T)
Packaging
blank = bulk packaged
(T) = Tape & Reel*
*full reel increments only (500pcs)
Frequency (MHz)
Linearity
B = 10%
Pullability
(minimum APR)
A = ±50 ppm
B = ±100 ppm
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
1
All specifications are subject to change without notice.
DS 268 Rev A | 05/20/05
ST1307 Series
3.3V CMOS Ultra Low Jitter
Voltage Controlled Crystal Oscillator (VCXO)
Electrical Performance
Parameter
Min.
Typ.
Max.
Units
Notes
Output frequency (F
N
)
Supply voltage
Supply current
Frequency stability
Operating temperature
Output logic 0, V
OL
Output logic 1, V
OH
Output load
Duty cycle
Rise and fall time
Jitter, total
1.0
+2.97
+3.3
32.0
+3.63
15
±50
MHz
V
mA
ppM
°C
V
V
pF
%
ns
ps
pk-pk
As specified
See #1 and #2 below
As specified
-40
90% V
DD
+85
10% V
DD
30
45
55
8
20
measured 50% V
DD
measured 20/80% V
DD
Notes:
1. As specified. Stability includes all combinations of operating temperature, load changes, rated input (supply) voltage changes, shock and vibra-
tion, with control voltage held at center.
2. ±12 ppM max due to aging (10 years at 40°C average ambient operating temperature).
Frequency Modulation Function
Parameter
Min.
Typ.
Max.
Units
Notes
Absolute pull range (APR)
Control voltage range
Center control voltage
Monotonic linearity
Input impedance
Modulation bandwidth
±50 to ±100
+0.3
+1.65
10
50
50
+3.0
ppM
V
DC
V
%
kΩ
kHz
See #1 below
As rated
For RMT center frequency
Positive transfer slope
Control voltage pin
-3dB
Notes:
1. As specified. APR is relative to the nominal output frequency F
N
; APR is inclusive (net) of frequency deviation due to stability.
Output Enable / Disable Function
Parameter
Min.
Typ.
Max.
Units
Notes
Input voltage, output enable
Input voltage, output high impedance
3.0
0.3
V
V
or open
Output is high impendance
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
2
All specifications are subject to change without notice.
DS 268 Rev A | 05/20/05
ST1307 Series
3.3V CMOS Ultra Low Jitter
Voltage Controlled Crystal Oscillator (VCXO)
Absolute Maximum Ratings
Parameter
Min.
Typ.
Max.
Units
Notes
Storage temperature
Control voltage range
-55
-0.5
+125
V
DD
+0.5
°C
V
Test Circuit
Test Point
POWER
SUPPLY
6
0.1µF
1
5
2
4
3
30pF (incl.
probe and
fixture
capacitance)
Control Voltage
Output Control
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
3
All specifications are subject to change without notice.
DS 268 Rev A | 05/20/05
ST1307 Series
3.3V CMOS Ultra Low Jitter
Voltage Controlled Crystal Oscillator (VCXO)
Output Waveform
t
f
VOH
t
r
80%
50%
20%
VOL
t
A
Duty cycle = 100%
x
(t
A
)
/
(t
A
+
t
B
)
t
B
Solder Reflow Guide
½½½½½½½½½½½½½½½½½
½½½
½½½½½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½½½½½½½½
½½½½½½½½½½½½
½½½
½½½½
½½½½½½½½½½½½
½½½½½½½½½½½½½½½½½½
Reliability Test Ratings
This product is rated under the following test conditions:
Type
Parameter
Test Condition
Mechanical
Mechanical
Mechanical
Mechanical
Environmental
Environmental
Environmental
Environmental
Shock
Solderability
Terminal strength
Solvent resistance
Thermal shock
Moisture resistance
Vibration
Resistance to soldering heat
MIL-STD-883, Method 2002, Condition B
JESD22-B102-D Method 2 (Preconditioning E)
MIL-STD-883, Method 2004, Condition D
MIL-STD-202, Method 215
MIL-STD-883, Method 1011, Condition A
MIL-STD-883, Method 1004
MIL-STD-883, Method 2007, Condition A
J-STD-020C Table 5-2 Pb-free devices (2 cycles max)
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
4
All specifications are subject to change without notice.
DS 268 Rev A | 05/20/05
ST1307 Series
3.3V CMOS Ultra Low Jitter
Voltage Controlled Crystal Oscillator (VCXO)
Mechanical Drawings
½½½½½½½½½
½½½½½½½½½½½
½½
½½
½½
Recommended Land Pattern*
½½½½½½½½½
½½½½½½½½½
½½½½
½½½½
½½
½½
½½½½
½½½½
½½
½½½
½½½½
½½½½ ½½½
½½½½
½½½½
½½½½
½½
½½½½
½½½½
½½
½½½
½½½½
½½
½½½½
½½½½
½½½½
½½½½
½½½½
½½½½
½½½
½½½½
*External high-frequency power decoupling is
recommended.(see test circuit for minimum recom-
mendation). To ensure optimal performance, do not
route traces beneath the package.
Scale: None. Dimensions are in mm/inches.
½½½½
½½½½
Marking LINE 1:
Marking LINE 2:
Marking LINE 3:
ST1307xxx
12.3456
• YYWWx
(SaRonix, Model, Option Codes)
(Frequency in MHz)
(Pin 1, Year, Week, Origin)
** Exact location of items may vary
Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com/saronix
5
All specifications are subject to change without notice.
DS 268 Rev A | 05/20/05
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