DFAS7-LHZFREQ1E3 datasheet, PDF

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DFAS7-LHZFREQ1E3: DescriptionHCMOS Output Clock Oscillator, 2MHz Min, 30MHz Max; CategoryPassive components oscillator; File Size25KB，1 Pages; ManufacturerCTS; Environmental Compliance

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DFAS7-LHZFREQ1E3 Overview

HCMOS Output Clock Oscillator, 2MHz Min, 30MHz Max

DFAS7-LHZFREQ1E3 Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	CTS
Reach Compliance Code	unknown
Ageing	1 PPM/FIRST YEAR
maximum descent time	10 ns
Frequency Adjustment - Mechanical	NO
frequency stability	3%
Manufacturer's serial number	DFAS7-LHZ
Installation features	SURFACE MOUNT
Maximum operating frequency	30 MHz
Minimum operating frequency	2 MHz
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Oscillator type	HCMOS
Output load	1 TTL, 15 PF
physical size	19.9mm x 12.9mm x 7.8mm
longest rise time	10 ns
Nominal supply voltage	3.3 V
surface mount	YES
maximum symmetry	55/45 %

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FREQUENCY CONTROL PRODUCTS

SURFACE MOUNT MINIATURE TCXO

TYPES DFA S7-KHZ (5 V) & DFA S7-LHZ (3.3 V)

19.9± 0.1

RECOMMENDED FOR NEW DESIGNS

12.9± 0.2

7.62

SURFACE MOUNTABLE PACKAGE

5 V OR 3.3 V SUPPLY VOLTAGE

TIGHT STABILITY

Option Y

Pot in

1.27

1.6

18.4

1.2

Function

NC / Pot in / Vco

GND

N/C

Output

Vcc

E/D

DFA S7

10k

19.0

7.62

1.3

7.8± 0.1

2.6

PC board footprint

TYPE

Frequency Range

DFA S7-KHZ

2 to 50 MHz

5V±5%

≤

20 mA

≤

30 mA

≤

40 mA

HCMOS 15 pF

or 2 TTL

≤

45/55...55/45 %

≤

10 ns

≥

3.5 V/

≤

0.5 V

≤

10 ms @ 4.75V

DFA S7-KOZ

2 to 50 MHz

5V±5%

≤

20 mA

≤

30 mA

≤

40 mA

clipped sine

20kΩ//5 pF

≥

2 V p-p

DFA S7-LHZ

2 to 45 MHz

3.3 V ± 5 %

≤

10 mA

≤

15 mA

≤

20 mA

HCMOS 15 pF

or 1 TTL

≤

45/55...55/45 %

≤

10 ns

≥

2.7 V/

≤

0.2 V

DFA S7-LOZ

2 to 45 MHz

3.3 V ± 5 %

≤

10 mA

≤

15 mA

≤

20 mA

clipped sine

20kΩ//5 pF

≥

1.5 V p-p

ELECTRICAL SPECIFICATIONS

supply voltage

supply current ( no load)

≤

25 MHz

≤

35 MHz

> 35 MHz

output load

duty cycle @ 2.5V (LH @ 1.65 V)

rise/fall times (10 to 90 %)

high/low levels or output amplitude

start-up

tri-state control on pin 6

remarks

≤

10 ms @ 4.75V

≤

10 ms @ 3.15V

≤

10 ms @ 3.15V

High or open = enable, low = high Z

duty cycle for frequencies > 30 MHz is 40/60%…60/40%

FREQUENCY STABILITY

type

temperature

range

-10 to 60°C

-20 to 70°C

-30 to 75°C

-40 to 85°C

model

code

temperature

≤

±1

≤

±1

≤

±2

≤

±2

≤

±3

detailed tolerances [ ppm ]

stability versus :

Vcc range

load ± 10 %

≤

± 0.1

≤

± 0.1

Ageing

≤

±1

≤

±1

all types

DFA S7-K type

remarks

≤

± 0.1

≤

± 0.1

factory calibration if no trimming option

≤

± 1 ppm

ageing is 1 year at 25°C

OPTIONS

external voltage control

internal trimmer

external potentiometer

CODE

DFA S7-K : 2.5 V ± 2 V

≥

± 5 ppm, positive slope

DFA S7-L : 1.5 V ± 1.5 V

≥

± 5 ppm, positive slope

≥

± 5 ppm

10 kΩ

≥

± 5 ppm, between pin 1 and GND (not available with internal trimmer)

ORDERING CODE

Example

type + option code + frequency + model code

DFA S7-KHZ 16.384 MHz E3

web site :

http://www.fordahl.com

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