DS-157 REV C 5.5
SaRonix
Voltage Controlled Crystal Oscillator
Technical Data
SaRonix
S1550 Series
PECL
www.pericom.com/saronix
Frequency Range: 38.88 MHz to 155.52 MHz
Frequency Stability: ±20, ±25, ±50, or ±100 ppm over all conditions: operating
temperature, supply voltage change, load change, calibration
tolerance, shock and vibration.
ACTUAL SIZE
Description
A voltage controlled crystal oscillator
designed primarily for use in phase locked
loops, phase shift keying, ATM, SDH
and network/switch applications. Output
is Motorola 10KH compatible. Device is
packaged in a 14-pin DIP compatible,
resistance welded package. Case is
grounded to Pin 7 to reduce EMI.
Applications & Features
Positive supply voltage ECL (PECL)
Complementary outputs
Wide frequency range from 38.88 MHz
to 155.52 MHz using SaRonix funda-
mental crystals for exceptional jitter
performance
±50 or ±100 ppm minimum APR*
Covers wide range of telecommunica-
tion applications
Other features such as enable/disable
and negative supply are available in
this series, consult factory
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Output Waveforms
Outputs
Crossing
VOH MinLogic 1
VOL Max
Logic 0
20%
80%
SYMMETRY
45% Min, 55% Max
Aging @ 25°C: ±3ppm max per year, ±7ppm max over 10 years
Temperature Range:
Operating:
Storage:
0°C to +70°C or -40°C to +85°C
-55°C to +125°C
Supply Voltage (VCC): +5.0V ±5%
Supply Current: 70mA typ, 100mA max
Output Drive:
Symmetry:
Rise & Fall Times:
Logic 0:
Logic 1:
Load:
Jitter:
45/55% max @ outputs crossing
1.2ns Tr max & 1.7ns Tf max, 20% to 80% of output waveform
VCC -1.60 max
VCC -1.02 min
50Ω to VCC -2V (all outputs require termination)
3.5ps max RMS period jitter
Pull Characteristics:
Input Impedence (Pin 1):
Frequency Response (-3dB):
Pullability:
Control Voltage:
Linearity:
Transfer Function:
50KΩ min
10 kHz min
±50 or ±100 ppm min APR* (VC = +2.5 ±2V)
+0.5V to +4.5V
10% max
Frequency increases when control voltage increases
MIL-STD-202, Method 213, Condition F
MIL-STD-883, Method 2003
MIL-STD-202, Method 211, Conditions A & C
MIL-STD-883, Method 2007, Condition A
MIL-STD-202, Method 215
MIL-STD-202, Method 210, Condition A, B or C
(I or J for Gull-wing)
Mechanical:
Shock:
Solderability:
Terminal Strength:
Vibration:
Solvent Resistance:
Resistance to Soldering Heat:
Environmental:
MIL-STD-883, Method 1014, Condition C
MIL-STD-883, Method 1014, Condition A2
MIL-STD-883, Method 1011, Condition A
MIL-STD-883, Method 1004
Gross Leak Test:
Fine Leak Test:
Thermal Shock:
Moisture Resistance:
* APR = (VCXO Pull relative to specified Output Frequency) – (VCXO Frequency Stability)
All specifications are subject to change without notice.
DS-157 REV C 5.6
SaRonix
S1550 Series
SaRonix
Voltage Controlled Crystal Oscillator
Technical Data
PECL
www.pericom.com/saronix
Package Details
SARONIX
VCXO
Denotes Pin 1
mm
inches
Scale: None (Dimensions in )
**
Exact location of items may vary
Pin 9
Stability Tolerance
AA = ±20 ppm, 0 to +70°C
*
A = ±25 ppm, 0 to +70°C
*
B = ±50 ppm, 0 to +70°C
C = ±100 ppm, 0 to +70°C
*
E = ±50 ppm, -40 to +85°C
Part Numbering Guide
Model
ECL VCXO Series
S 1550 A A B - 77.7600
Frequency (MHz)
Package
Blank = 5.08mm high
M = 7.49mm high (not shown)
K = 5.08mm high, gull wing
J = 7.49mm high, gull wing
Pullability (APR)
**
A = ±50 ppm min
B = ±100 ppm min
Linearity
B = 10% max
+2.0V
CONTROL
VOLTAGE -3.0V
OSCILLATOR
Pin 14 Pin 8Pin 10
Pin 1 Pin 7
50
Ω
Q
Q
50
Ω
INTERNAL SCOPE
TERMINATION
TO GND
INTERNAL SCOPE
TERMINATION
TO GND
Test Circuit
** APR = (VCXO Pull relative to specified Output Frequency) – (VCXO Frequency Stability)
max
21.0
.825
0.91
.036
5.77±0.5
.227±.02
15.24±.13
.600±.005
0.46±.08
.018±.003
5.08
.200 max
2.54
.100
2.54
.100
Pin 8
Pin 10 Pin 9
Pin 14
13.0
.510
max
7.75
.305
Pin 7
Pin 1
Gull Wing Package
1.78
.070 typ
13.46±.25
.530±.010
Pin Functions:
Pin 9: Q Output
Pin 10: N/C
Pin 14: Supply Voltage
Pin 1: Control Voltage
Pin 7: GND / Case
Pin 8: Q Output
Marking Format
**
Includes Date Code, Frequency & Model
* A pullability only
max
