EH3645ETTS-19.440MTR datasheet, PDF

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EH3645ETTS-19.440MTR: DescriptionCRYSTAL OSCILLATOR, CLOCK, 19.44MHz, LVCMOS OUTPUT, ROHS COMPLIANT, CERAMIC, SMD, 4 PIN; CategoryPassive components oscillator; File Size216KB，6 Pages; ManufacturerECLIPTEK; Websitehttp://www.ecliptek.com; Environmental Compliance

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EH3645ETTS-19.440MTR Overview

CRYSTAL OSCILLATOR, CLOCK, 19.44MHz, LVCMOS OUTPUT, ROHS COMPLIANT, CERAMIC, SMD, 4 PIN

EH3645ETTS-19.440MTR Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Maker	ECLIPTEK
Reach Compliance Code	compliant
Other features	TRI-STATE; ENABLE/DISABLE FUNCTION; TAPE AND REEL
maximum descent time	6 ns
Frequency Adjustment - Mechanical	NO
frequency stability	50%
JESD-609 code	e4
Manufacturer's serial number	EH36
Installation features	SURFACE MOUNT
Nominal operating frequency	19.44 MHz
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Oscillator type	LVCMOS
Output load	30 pF
physical size	3.2mm x 5.0mm x 1.3mm
longest rise time	6 ns
Maximum supply voltage	3.6 V
Minimum supply voltage	3 V
Nominal supply voltage	3.3 V
surface mount	YES
maximum symmetry	60/40 %
Terminal surface	Nickel/Gold (Ni/Au)

EH3645ETTS-19.440MTR Preview

EH3645ETTS-19.440M TR

EH36 45 ET

Series

RoHS Compliant (Pb-free) 3.3V 4 Pad 3.2mm x 5mm

Ceramic SMD LVCMOS High Frequency Oscillator

Frequency Tolerance/Stability

±50ppm Maximum

Operating Temperature Range

-40°C to +85°C

Duty Cycle

50 ±10(%)

RoHS

Packaging Options

Tape & Reel

TS -19.440M TR

Nominal Frequency

19.440MHz

Pin 1 Connection

Tri-State (High Impedance)

ELECTRICAL SPECIFICATIONS

Nominal Frequency

Frequency Tolerance/Stability

19.440MHz

±50ppm Maximum (Inclusive of all conditions: Calibration Tolerance at 25°C, Frequency Stability over the

Operating Temperature Range, Supply Voltage Change, Output Load Change, 1st Year Aging at 25°C,

Shock, and Vibration)

±5ppm/year Maximum

-40°C to +85°C

3.3Vdc ±0.3Vdc

35mA Maximum (No Load)

2.7Vdc Minimum (IOH = -8mA)

0.5Vdc Maximum (IOL = +8mA)

6nSec Maximum (Measured at 20% to 80% of waveform)

50 ±10(%) (Measured at 50% of waveform)

30pF Maximum

CMOS

Tri-State (High Impedance)

70% of Vdd Minimum to enable output, 20% of Vdd Maximum to disable output, No Connect to enable

output.

±250pSec Maximum, ±100pSec Typical

±50pSec Maximum, ±40pSec Typical

10mSec Maximum

-55°C to +125°C

Aging at 25°C

Operating Temperature Range

Supply Voltage

Input Current

Output Voltage Logic High (Voh)

Output Voltage Logic Low (Vol)

Rise/Fall Time

Duty Cycle

Load Drive Capability

Output Logic Type

Pin 1 Connection

Tri-State Input Voltage (Vih and Vil)

Absolute Clock Jitter

One Sigma Clock Period Jitter

Start Up Time

Storage Temperature Range

ENVIRONMENTAL & MECHANICAL SPECIFICATIONS

Fine Leak Test

Gross Leak Test

Mechanical Shock

Resistance to Soldering Heat

Resistance to Solvents

Solderability

Temperature Cycling

Vibration

MIL-STD-883, Method 1014, Condition A

MIL-STD-883, Method 1014, Condition C

MIL-STD-202, Method 213, Condition C

MIL-STD-202, Method 210

MIL-STD-202, Method 215

MIL-STD-883, Method 2003

MIL-STD-883, MEthod 1010

MIL-STD-883, Method 2007, Condition A

www.ecliptek.com | Specification Subject to Change Without Notice | Rev C 8/13/2010 | Page 1 of 6

EH3645ETTS-19.440M TR

MECHANICAL DIMENSIONS (all dimensions in millimeters)

CONNECTION

Tri-State

Ground/Case Ground

Output

Supply Voltage

3.20

±0.20

MARKING

ORIENTATION

1.14

1.0

All Tolerances are ±0.1

1.20 ±0.20 (x4)

1.00 ±0.20 (x4)

5.00

±0.20

2.54

±0.15

1.3

MAX

2.20

±0.15

1.20

±0.20

(x4)

LINE MARKING

E19.440

E=Ecliptek Designator

Suggested Solder Pad Layout

All Dimensions in Millimeters

1.2 (X4)

1.4 (X4)

Solder Land

(X4)

www.ecliptek.com | Specification Subject to Change Without Notice | Rev C 8/13/2010 | Page 2 of 6

EH3645ETTS-19.440M TR

OUTPUT WAVEFORM & TIMING DIAGRAM

TRI-STATE INPUT

CLOCK OUTPUT

80% of Waveform

50% of Waveform

20% of Waveform

OUTPUT DISABLE

(HIGH IMPEDANCE

STATE)

PLZ

Fall

Time

Rise

Time

Duty Cycle (%) = T

/T x 100

PZL

Test Circuit for CMOS Output

Oscilloscope

Frequency

Counter

Power

Supply

Voltage

Meter

Current

Meter

Supply

Voltage

)

Probe

(Note 2)

Output

0.01µF

(Note 1)

0.1µF

(Note 1)

Ground

(Note 3)

No Connect

or Tri-State

Note 1: An external 0.1µF low frequency tantalum bypass capacitor in parallel with a 0.01µF high frequency

ceramic bypass capacitor close to the package ground and V

pin is required.

Note 2: A low capacitance (<12pF), 10X attenuation factor, high impedance (>10Mohms), and high bandwidth

(>300MHz) passive probe is recommended.

Note 3: Capacitance value C

includes sum of all probe and fixture capacitance.

www.ecliptek.com | Specification Subject to Change Without Notice | Rev C 8/13/2010 | Page 3 of 6

EH3645ETTS-19.440M TR

Tape & Reel Dimensions

Quantity Per Reel: 1,000 units

4.0 ±0.1

2.0 ±0.1

DIA 1.5 +0.1/-0.0

0.30 ±0.05

5.5 ±0.1

12.0 ±0.2

6.5 ±0.1

A0*

8.0 ±0.1

*Compliant to EIA 481A

B0*

K0*

1.5 MIN

DIA 40 MIN

Access Hole at

Slot Location

18.4 MAX

180 MAX

DIA 50 MIN

DIA 20.2 MIN

2.5 MIN Width

10.0 MIN Depth

Tape slot in Core

for Tape Start

12.4 +2.0/-0.0

DIA 13.0 ±0.2

www.ecliptek.com | Specification Subject to Change Without Notice | Rev C 8/13/2010 | Page 4 of 6

EH3645ETTS-19.440M TR

Recommended Solder Reflow Methods

Critical Zone

to T

Ramp-up

Ramp-down

Temperature (T)

Max

Min

Preheat

t 25°C to Peak

Time (t)

High Temperature Infrared/Convection

MAX to T

(Ramp-up Rate)

Preheat

- Temperature Minimum (T

MIN)

- Temperature Typical (T

TYP)

- Temperature Maximum (T

MAX)

- Time (t

MIN)

Ramp-up Rate (T

to T

)

Time Maintained Above:

- Temperature (T

)

- Time (t

)

Peak Temperature (T

)

Target Peak Temperature (T

Target)

Time within 5°C of actual peak (t

)

Ramp-down Rate

Time 25°C to Peak Temperature (t)

Moisture Sensitivity Level

3°C/second Maximum

150°C

175°C

200°C

60 - 180 Seconds

3°C/second Maximum

217°C

60 - 150 Seconds

260°C Maximum for 10 Seconds Maximum

250°C +0/-5°C

20 - 40 seconds

6°C/second Maximum

8 minutes Maximum

Level 1

www.ecliptek.com | Specification Subject to Change Without Notice | Rev C 8/13/2010 | Page 5 of 6

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