SaRonix
Crystal Clock Oscillator
Technical Data
Frequency Range:
Frequency Stability:
32 MHz to 125 MHz (S1903)
80+ MHz to 125 MHz (S1950)
±20, ±25, ±32, ±50 or ±100ppm over all conditions; calibration
tolerance, operating temperature, input voltage change, load change,
aging(1 year @ 25°C average ambient operating temperature),
shock and vibration.
3.3 & 5V, ACMOS, TTL, SMD
S1903 / S1950 Series
Temperature Range:
Operating:
Storage:
Supply Voltage:
Supply Current:
ACTUAL SIZE
0 to +70°C or -40 to +85°C
-55 to +125°C
5V ±5% or 3.3V ±10%
35mA typ, 50mA max @ 5V
35mA max @ 3.3V
Output:
Description
The 5V S1950 and 3.3V S1903 are
crystal-controlled, low-current oscil-
lators providing precise rise and fall
times to drive high performance appli-
cations. The sub-miniature, very low
profile leadless ceramic package has
gold-plated contact pads, ideal for
today's pick-and-place SMT environ-
ments. The S1903 and the high output
load S1950 are both available to
125 MHz.
Applications & Features
• Fibre Channel - 106.2500 MHz
• Gigabit Ethernet - 125.0000 MHz
• Perfect for notebook and palmtop com-
puters; portable applications; PCMCIA
cards. Anywhere small size, low power,
surface mountability are a priority.
• 1.8mm high SMD ceramic package
• 3.3V or 5V
• Tri-State standard
• CMOS, ACMOS & TTL compatible
• Available on tape & reel; 16mm tape,
1000 pcs per reel
Solder Reflow Guide
Temperature – °C
Symmetry:
Rise & Fall Times:
Logic 0:
Logic 1:
Load:
Period Jitter RMS:
45/55% max @ 50% V
DD
or 1.5V, 0 to +70°C @ 5V
40/60% max @ 50% V
DD
or 1.5V, -40 to +85°C @ 5V
45/55% max @ 50% V
DD
@ 3.3V
2ns max 20% to 80% V
DD
1.5ns max 0.5 to 2.5V (S1950 only)
10% V
DD
max for S1950 or 20% VDD max for S1903
80% V
DD
min
50Ω ACMOS @ 5V or 95Ω ACMOS @ 3.3V
S1950: 20ps max 0 to +70°C
25ps max -40 to +85°C
S1903: 14ps max, 32 to 72 MHz
20ps max, 72+ to 125MHz, 0 to +70°C
25ps max, 72+ to 125MHz, -40 to +85°C
Mechanical:
Shock:
Solderability:
Vibration:
Solvent Resistance:
Terminal Strength:
Resitance to Soldering Heat:
Environmental:
Gross Leak Test:
Fine Leak Test:
Thermal Shock:
Moisture Resistance:
Part Numbering Guide
MIL-STD-883,
MIL-STD-883,
MIL-STD-883,
MIL-STD-202,
MIL-STD-883,
MIL-STD-202,
Method 2002, Condition B
Method 2003
Method 2007, Condition A
Method 215
Method 2004, Conditions D
Method 210, Condition I or J
MIL-STD-883,
MIL-STD-883,
MIL-STD-883,
MIL-STD-883,
Method
Method
Method
Method
1014, Condition C
1014, Condition A2
1011, Condition A
1004
S 1903 C – 125.0000 (T)
Saronix
(T) = Tape & Reel
full reel increments only
Frequency
Stability Tolerance
AA = ±20ppm, 0 to +70°C
A = ±25ppm, 0 to +70°C
B = ±50ppm, 0 to +70°C
C = ±100ppm, 0 to +70°C
D = ±25ppm, -40 to +85°C
H = ±32ppm, -40 to +85°C
E = ±50ppm, -40 to +85°C
F = ±100ppm, -40 to +85°C
DS-187
REV D
250
200
150
Reflow 240 max
4°C/sec max
Preheat 183 ±10°C
Cooling
Series
S1903 = 3.3V, 32 to 125 MHz
S1950 = 5V, 80+ to 125 MHz
4°C/sec max
Time
1 – 2 minutes
10 sec max
SaRonix
141 Jefferson Drive • Menlo Park, CA 94025 • USA • 650-470-7700 • 800-227-8974 • Fax 650-462-9894
SaRonix
Crystal Clock Oscillator
Technical Data
Package Details
7.2
max
.284
LOGIC 1
5.2 max
.205
80% V
DD
50% V
DD
20% V
DD
LOGIC 0
1.8
max
.071
Pad 1
Tri-state
1.6
.063
2.8
.110
1.2
.047
Pad 4
V
DD
5.08
.200
Pad 3
OUTPUT
1.4
.055
Pad 2
GND
SYMMETRY
SYMMETRY
2.5 VDC
1.5 VDC
0.5 VDC
GND
3.3 & 5V, ACMOS, TTL, SMD
S1903 / S1950 Series
Tri-State Logic Table
Output Waveform
CMOS
T
r
T
f
T
r
TTL
T
f
V
DD
Pad 1 Input
Logic 1 or NC
Logic 0 or GND
Pad 3 Output
Oscillation
High Impedance
Required Input Levels on Pad 1:
Logic 1 = 2.2V min
Logic 0 = 0.8V max
Test Circuits
mA
M
Pad 4
V
CC
POWER
SUPPLY
TEST
POINT
ACMOS
50Ω Load
Pad 3
OUT
50Ω
VM
.01 µF
OSCILLATOR
GND
0.01 µF
Marking Format
*
D = S1903
H = S1950
Stability Tolerance
Pad 1
Pad 2
SaRonix
S D C
YYWW
Date Code
Frequency
TRI-STATE INPUT
(current limited on fixture)
S1950 50Ω ACMOS TEST CIRCUIT
Ω
denotes pad 1
*
Exact location of items may vary
Recommended Land Pattern
mA
M
TEST
POINT
ACMOS
95Ω Load
Pad 3
**
2.0
.079
4
3
1.8
.071
Pad 4
V
CC
POWER
SUPPLY
.01 µF
OUT
95Ω
OSCILLATOR
GND
0.01 µF
4.4
.173
2.4
.094
1
5.08
.200
2
VM
Pad 1
Pad 2
TRI-STATE INPUT
(current limited on fixture)
S1903 95Ω ACMOS TEST CIRCUIT
Ω
mm
)
inches
**
External high frequency power supply
decoupling required.
Scale: None ( Dimensions in
All specifications are subject to change without notice.
DS-187
REV D
SaRonix
141 Jefferson Drive • Menlo Park, CA 94025 • USA • 650-470-7700 • 800-227-8974 • Fax 650-462-9894
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