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DFAS4-KHZ12.800MHZAS3

Description
HCMOS/TTL Output Clock Oscillator, 12.8MHz Nom, SURFACE MOUNT PACKAGE-5
CategoryPassive components    oscillator   
File Size54KB,1 Pages
ManufacturerCTS
Environmental Compliance
Download Datasheet Parametric View All

DFAS4-KHZ12.800MHZAS3 Overview

HCMOS/TTL Output Clock Oscillator, 12.8MHz Nom, SURFACE MOUNT PACKAGE-5

DFAS4-KHZ12.800MHZAS3 Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
Reach Compliance Codecompliant
Other featuresTRI-STATE ENABLE/DISABLE FUNCTION
Ageing3 PPM/15 YEAR
maximum descent time5 ns
Frequency Adjustment - MechanicalNO
frequency stability4.6%
Installation featuresSURFACE MOUNT
Nominal operating frequency12.8 MHz
Maximum operating temperature50 °C
Minimum operating temperature
Oscillator typeHCMOS/TTL
Output load2 TTL, 15 pF
physical size25.4mm x 22.2mm x 7.4mm
longest rise time5 ns
Maximum supply voltage5.25 V
Minimum supply voltage4.75 V
Nominal supply voltage5 V
surface mountYES
maximum symmetry55/45 %
Base Number Matches1
FREQUENCY CONTROL PRODUCTS
STRATUM III SURFACE MOUNT TCXO
DFA S4-KHZ (5 V) & DFA S4-LHZ (3.3 V)
2.5
KEY FEATURES
5 to 20.000 MHz
Stratum III compliant over -40 to 85°C up to
20.000 Mhz
APPLICATIONS
Stratum III
Function
NC
E/D
Vcc
Output
GND
2.5
20.0
20.0
7.4±0.2
DFA S4
1
2
3
4
5
0.8
25.4±0.2
22.2±0.5
23.6
1
8.9
5
17.8
2
8.9
PC board footprint
3.0
3
4.0
4
TYPE
Frequency Range
Standard Frequencies
DFA S4-KHZ
DFA S4-LHZ
5 to 20 MHz
12.8, 16.384, 19.44 & 20 MHz
ELECTRICAL SPECIFICATIONS
supply voltage
supply current ( no load)
output load
duty cycle @ 50% level
rise/fall times (10 to 90 %)
high/low levels or output amplitude
start-up
tri-state control on pin 2
5V ±5%
20 mA
HCMOS 15 pF or 2 TTL
45/55...55/45 %
5 ns
4.5 V/
0.5 V
10 ms @ 4.75 V
high or open = enable, low = high Z
3.3 V ± 5 %
10 mA
HCMOS 15 pF or 2 TTL
45/55...55/45 %
5 ns
2.8 V/
0.3 V
10 ms @ 3.15 V
high or open = enable, low = high Z
FREQUENCY STABILITY
type
temperature
range
model
code
detailed tolerances [ ppm ]
stability versus:
temperature Vcc ± 5 %
ageing
overall
stability
Holdover
stability
24 hrs
drift
calibration
@ 25°C
Telcordia GR-1244 CORE Stratum III or ITU-T G.813 option 1
0 to 50°C AS3
all types
0 to 70°C BS3
-20 to 70°C CS3
-40 to 85°C ES3
± 0.28
± 0.01
±3
over
15 years
± 4.6
over
15 years
± 0.37
± 0.04
± 0.8
DEFINITIONS
24 hours drift
24 hours holdover mode
GR-1244-CORE, GR-253-CORE or G.813
Over full temperature range and Vcc ± 5 %
ORDERING CODE
Example
type + option code + frequency + model code
DFA S4-LHZ 20.000 MHz ES3
TYPE
DFA S4 STRATUM III
REVISION
00
CHECKED
NE
DATE
17.01.2006
PAGE
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