DFAS1-LHZ19.44MHZBSM datasheet, PDF

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DFAS1-LHZ19.44MHZBSM: DescriptionHCMOS Output Clock Oscillator, 19.44MHz Nom, MINIATURE PACKAGE-6; Categoryoscillator; File Size61KB，1 Pages; ManufacturerCTS; Environmental Compliance

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DFAS1-LHZ19.44MHZBSM Overview

HCMOS Output Clock Oscillator, 19.44MHz Nom, MINIATURE PACKAGE-6

DFAS1-LHZ19.44MHZBSM Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	CTS
Reach Compliance Code	compliant
Is Samacsys	N
Other features	TRI-STATE; ENABLE/DISABLE FUNCTION
Ageing	10 PPM/20 YEAR
maximum descent time	5 ns
Frequency Adjustment - Mechanical	NO
frequency stability	3.5%
Installation features	SURFACE MOUNT
Nominal operating frequency	19.44 MHz
Maximum operating temperature	70 °C
Minimum operating temperature
Oscillator type	HCMOS
Output load	2 TTL, 15 pF
physical size	14.8mm x 9.1mm x 5.9mm
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 MINIATURE SURFACE MOUNT TCXO

DFA S1-KHZ (5 V) & DFA S1-LHZ (3.3 V)

14.8±0.3

KEY FEATURES

9.1±0.2

5.08

5 to 52 MHz

Stratum III compliant over -40 to 85°C up to

38.88 Mhz

Sonet Minimum Clock compliant over

-40 to 85°C up to 52 MHz

APPLICATIONS

Stratum III & SMC

Function

E/D

GND

Output

Vcc

1.4

1.0

5.9

+0.1

-0.2

5.08

DFA S1

2.54

8.9

PC board footprint

1.27

TYPE

Frequency Range

Standard Frequencies

DFA S1-KHZ

DFA S1-LHZ

5 to 20 MHz, soon to 38.88 MHz (BSM & ESM up 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 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 AS1001

-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°C 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 S1-LHZ 19.44 MHz AS3

TYPE

DFA S1 STRATUM III

REVISION

CHECKED

DATE

24.02.2006

PAGE

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