DFAS2-LHZFREQ1ES3 datasheet, PDF

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DFAS2-LHZFREQ1ES3: DescriptionHCMOS/TTL Output Clock Oscillator, 5MHz Min, 20MHz Max, ULTRA MINIATURE PACKAGE-4; CategoryPassive components oscillator; File Size34KB，1 Pages; ManufacturerCTS; Environmental Compliance

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DFAS2-LHZFREQ1ES3 Overview

HCMOS/TTL Output Clock Oscillator, 5MHz Min, 20MHz Max, ULTRA MINIATURE PACKAGE-4

DFAS2-LHZFREQ1ES3 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Reach Compliance Code	unknown
Other features	TRI-STATE; ENABLE/DISABLE FUNCTION; SYMMETRY 45/55 POSSIBLE
Ageing	3 PPM/15 YEAR
maximum descent time	5 ns
Frequency Adjustment - Mechanical	NO
frequency stability	0.28%
Installation features	SURFACE MOUNT
Maximum operating frequency	20 MHz
Minimum operating frequency	5 MHz
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Oscillator type	HCMOS/TTL
Output load	2 TTL, 15 PF
physical size	7.2mm x 5.3mm x 3.2mm
longest rise time	5 ns
Maximum supply voltage	3.465 V
Minimum supply voltage	3.135 V
Nominal supply voltage	3.3 V
surface mount	YES
maximum symmetry	55/45 %
Base Number Matches	1

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FREQUENCY CONTROL PRODUCTS

STRATUM III ULTRA MINIATURE SURFACE MOUNT TCXO

DFA S2-KHZ (5 V) & LHZ (3.3 V)

FEATURES

5 to 52 MHz

Stratum III compliant over -40 to 85° up to

20 MHz

Sonet Minimum Clock compliant over

-40 to 85°C up to 52 MHz

APPLICATIONS

Stratum III and SMC

2.4

5.3±0.1

7.2±0.2

5.08

0.9

3.2±0.2

5.08

Function

E/D

GND

Output

Vcc

DFA S2

PC board footprint

1.4

TYPE

Frequency Range

Standard Frequencies

DFA S2-KHZ

DFA S2-LHZ

5 to 20 Mhz

20.1 to 52 MHz*

12.8, 16.384, 19.44, 20, 34.368*, 38.88* & 44.736* 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 1

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°

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

≤

± 0.1

≤

±3

over

15 years

≤

± 4.6

over

15 years

≤

± 0.37

≤

± 0.04

≤

± 0.8

Telcordia GR-253 CORE SMC or ITU-T G.813 option 2

all types

0 to 70°C BSM

-40 to 85° ESM

≤

± 3.5

≤

± 0.3

≤

± 10

over

20 years

≤

± 20

over

20 years

≤

± 4.6

≤

± 0.5

≤

±1

DEFINITIONS

24 hours drift

24 hours holdover mode

GR-1244-CORE, GR-253-CORE or G.813

Over full temperature range and Vcc ± 0.5 %

ORDERING CODE

Example

type + option code + frequency + model code

DFA S2-LHZ 19.44 MHz BS3

*All temperature range and stability combinations are not available. Please consult factory for availability

TYPE

DFA S2 SIII

REVISION

CHECKED

DATE

08.04.2008

PAGE

2.0

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