Datasheet > DFAS2-LHZ44.736MHZESM

DFAS2-LHZ44.736MHZESM

更新时间： 2023-06-15 00:00:00

品牌	Logo	应用领域
西迪斯 - CTS		/
页数	文件大小	规格书
1页	54K
描述
HCMOS/TTL Output Clock Oscillator, 44.736MHz Nom, MINIATURE PACKAGE-4

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DFAS2-LHZ44.736MHZESM 数据手册

S T R AT U M I I I M I N I AT U R E S U R F AC E M O U N T T C X O

D F A S 2 - K H Z ( 5 V ) & D F A S 2 - L H Z ( 3 . 3 V )

7.2±0.2

KEY FEATURES

5.08

5 to 52 MHz

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

20 Mhz

0.9

Sonet Minimum Clock compliant over

-40 to 85°C up to 52 MHz

APPLICATIONS

5.08

Stratum III & SMC

Function

E/D

GND

Output

Vcc

DFA S2

PC board footprint

1.4

TYPE

DFA S2-KHZ

DFA S2-LHZ

Frequency Range

5 to 20 MHz, (BSM & ESM up to 52 MHz)

Standard Frequencies

12.8, 16.384, 19.44, 20, 34.368, 38.88 & 44.736 MHz

ELECTRICAL SPECIFICATIONS

supply voltage

5 V ± 5 %

3.3 V ± 5 %

supply current ( no load)

≤ 20 mA

≤ 10 mA

output load

HCMOS 15 pF or 2 TTL

45/55...55/45 %

HCMOS 15 pF or 2 TTL

45/55...55/45 %

duty cycle @ 50% level

rise/fall times (10 to 90 %)

high/low levels or output amplitude

start-up

≤ 5 ns

≥ 4.5 V/ ≤ 0.5 V

≥ 2.8 V/ ≤ 0.3 V

≤ 10 ms @ 4.75 V

≤ 10 ms @ 3.15 V

tri-state control on pin 1

high or open = enable, low = high Z

FREQUENCY STABILITY

detailed tolerances [ ppm ]

temperature

range

model

code

stability versus:

temperature Vcc ± 5 %

overall

stability

Holdover

stability

24 hrs

drift

calibration

@ 25°C

type

ageing

Telcordia GR-1244 CORE Stratum III or ITU-T G.813 option 1

0 to 50°C AS3

0 to 70°C BS3

-20 to 70°C CS3

-40 to 85°C ES3

≤ ± 3

≤ ± 4.6

all types

≤ ± 0.28

≤ ± 3.5

≤ ± 0.1

over

≤ ± 0.37

≤ ± 0.04

≤ ± 0.8

15 years 15 years

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

≤ ± 10

over

20 years 20 years

≤ ± 20

over

0 to 70°C BSM

all types

≤ ± 0.3

≤ ± 4.6

≤ ± 0.5

≤ ± 1

-40 to 85°C ESM

DEFINITIONS

24 hours drift

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

24 hours holdover mode

Over full temperature range and Vcc ± 0.5 %

ORDERING CODE

type + option code + frequency + model code

Example

DFA S2-LHZ 19.44 MHz BS3

Not all combinations of temperature ranges and stabilities are available. Please consult factory for details.

These products and their specifications are subject to change without notice.

DFA_S2_SIII

16.04.2011 / PIK

Fully compliant to RoHS Directive 2002/95/EC

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