DFA14-CH20MHZES3 datasheet, PDF

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DFA14-CH20MHZES3: DescriptionHCMOS Output Clock Oscillator, 20MHz Nom; CategoryPassive components oscillator; File Size52KB，1 Pages; ManufacturerCTS; Environmental Compliance

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DFA14-CH20MHZES3 Overview

HCMOS Output Clock Oscillator, 20MHz Nom

DFA14-CH20MHZES3 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	CTS
Reach Compliance Code	compliant
Ageing	3 PPM/15YEAR
maximum descent time	5 ns
Frequency Adjustment - Mechanical	NO
frequency stability	0.28%
Installation features	THROUGH HOLE MOUNT
Nominal operating frequency	20 MHz
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Oscillator type	HCMOS
Output load	2 TTL, 15 pF
physical size	20.30mm x 12.7mm x 8.5mm
longest rise time	5 ns
Maximum supply voltage	0.25 V
Minimum supply voltage	4.75 V
Nominal supply voltage	5 V
surface mount	NO
maximum symmetry	55/45 %

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FREQUENCY CONTROL PRODUCTS

DIL 14 STRATUM III TCXO

DFA 14-CH (5 V) & DFA 14-CLH (3.3 V)

KEY FEATURES

5 to 52 MHz

PIN 1

20.3±0.1

15.24

12.7±0.1

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

H = 8.50 mm

7.62

6.3

Function

N/C

GND

Output

Vcc

DFA 14

H±0.1

0.45

TYPE

Frequency Range

Standard Frequencies

DFA 14-CH

DFA 14-CLH

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

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

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

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

≤

± 0.3

≤

±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 14-CLH 19.44 MHz ESM

* Preliminary, please consult factory for details

TYPE

DFA 14 SIII

REVISION

CHECKED

DATE

06.09.2005

PAGE

0.75±0.1

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