EC3245HSTA-27.000M - Ecliptek Corporation

RoHS

EC3245HSTA-27.000M

EC32 45 HS T A -27.000M

Series

RoHS Compliant (Pb-free) 3.3V 8 Pin DIP Metal

Thru-Hole LVCMOS/TTL VCXO

Frequency Tolerance/Stability

±50ppm Maximum

Package

Duty Cycle

50 ±5(%)

Nominal Frequency

27.000MHz

Operating Temperature Range

0°C to +70°C

Linearity

±20% Maximum

Frequency Deviation

±100ppm Minimum

ELECTRICAL SPECIFICATIONS

Nominal Frequency 27.000MHz

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

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

Shock, and Vibration)

Aging at 25°C ±5ppm/year Maximum

Operating Temperature Range 0°C to +70°C

Supply Voltage 3.3Vdc ±10%

Input Current 20mA Maximum

Output Voltage Logic High (Voh) 2.4Vdc Minimum with TTL Load, 2.7Vdc Minimum with LVCMOS Load

Output Voltage Logic Low (Vol) 0.4Vdc Maximum with TTL Load or with LVCMOS Load

Rise/Fall Time 5nSec Maximum (Measured at 0.4Vdc to 2.4Vdc w/TTL Load, 20% to 80% of waveform w/LVCMOS Load)

Duty Cycle 50 ±5(%) (Measured at 50% of waveform w/LVCMOS Load)

Load Drive Capability 2TTL Load or 15pF LVCMOS Load Maximum

Output Logic Type CMOS

Control Voltage 1.65Vdc ±1.65Vdc

Frequency Deviation ±100ppm Minimum

Linearity ±20% Maximum

Transfer Function Positive Transfer Characteristic

Absolute Clock Jitter ±100pSec Maximum

One Sigma Clock Period Jitter ±25pSec Maximum

Start Up Time 10mSec Maximum

Storage Temperature Range -55°C to +125°C

ENVIRONMENTAL & MECHANICAL SPECIFICATIONS

Fine Leak Test MIL-STD-883, Method 1014, Condition A

Gross Leak Test MIL-STD-883, Method 1014, Condition C

Lead Integrity MIL-STD-883, Method 2004

Mechanical Shock MIL-STD-202, Method 213, Condition C

Resistance to Soldering Heat MIL-STD-202, Method 210

Resistance to Solvents MIL-STD-202, Method 215

Solderability MIL-STD-883, Method 2003

Temperature Cycling MIL-STD-883, Method 1010

Vibration MIL-STD-883, Method 2007, Condition A

www.ecliptek.com | Specification Subject to Change Without Notice | Rev H 2/17/2010 | Page 1 of 7

EC3245HSTA-27.000M

MECHANICAL DIMENSIONS (all dimensions in millimeters)

7.620

±0.203

7.620 ±0.203

13.2

MAX

13.2

MAX

85DIA 0.457

±0.1 (X4)

5.08 MIN

5.6 MAX

0.8 ±0.1 (X3)

MARKING

ORIENTATION

PIN CONNECTION

1 Control Voltage

4 Ground/Case Ground

5 Output

8 Supply Voltage

LINE MARKING

1ECLIPTEK

2EC32

EC32=Product Series

327.000M

4XXYZZ

XX=Ecliptek Manufacturing

Code

Y=Last Digit of the Year

ZZ=Week of the Year

OUTPUT WAVEFORM

VOH

VOL

80% or 2.4VDC

50% or 1.4VDC

20% or 0.4VDC

Fall

Time

Rise

Time TW

Duty Cycle (%) = TW/T x 100

CLOCK OUTPUT

www.ecliptek.com | Specification Subject to Change Without Notice | Rev H 2/17/2010 | Page 2 of 7

EC3245HSTA-27.000M

Test Circuit for TTL Output

Output

Supply

Voltage

(VDD)

Ground

Power

Supply Voltage

Meter

Current

Meter

0.01µF

(Note 1) 0.1µF

(Note 1) CL

(Note 3)

(Note 4)

Power

Supply

Oscilloscope Frequency

Counter

Probe

(Note 2)

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 VDD 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 CL includes sum of all probe and fixture capacitance.

Note 4: Resistance value RL is shown in Table 1. See applicable specification sheet for 'Load Drive Capability'.

Note 5: All diodes are MMBD7000, MMBD914, or equivalent.

Table 1: RL Resistance Value and CL Capacitance

Value Vs. Output Load Drive Capability

Output Load

Drive Capability RL Value

(Ohms) CL Value

(pF)

10TTL

5TTL

2TTL

10LSTTL

1TTL

390

780

1100

2000

2200

Power

Supply Voltage

Meter

Note 5

Voltage

Control

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EC3245HSTA-27.000M

Supply

Voltage

(VDD)

Test Circuit for CMOS Output

Output

Voltage

Control

Ground

Power

Supply

0.01µF

(Note 1) 0.1µF

(Note 1) CL

(Note 3)

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 VDD 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 CL includes sum of all probe and fixture capacitance.

Voltage

Meter

Current

Meter

Oscilloscope Frequency

Counter

Probe

(Note 2)

Power

Supply Voltage

Meter

www.ecliptek.com | Specification Subject to Change Without Notice | Rev H 2/17/2010 | Page 4 of 7

T Min

T Max

Critical Zone

T to T

L P

Ramp-up Ramp-down

t 25°C to Peak

t Preheat

StL

Temperature (T)

Time (t)

Recommended Solder Reflow Methods

EC3245HSTA-27.000M

High Temperature Solder Bath (Wave Solder)

TS MAX to TL (Ramp-up Rate) 3°C/second Maximum

Preheat

- Temperature Minimum (TS MIN) 150°C

- Temperature Typical (TS TYP) 175°C

- Temperature Maximum (TS MAX) 200°C

- Time (tS MIN) 60 - 180 Seconds

Ramp-up Rate (TL to TP)3°C/second Maximum

Time Maintained Above:

- Temperature (TL)217°C

- Time (tL)60 - 150 Seconds

Peak Temperature (TP)260°C Maximum for 10 Seconds Maximum

Target Peak Temperature (TP Target) 250°C +0/-5°C

Time within 5°C of actual peak (tp)20 - 40 seconds

Ramp-down Rate 6°C/second Maximum

Time 25°C to Peak Temperature (t) 8 minutes Maximum

Moisture Sensitivity Level Level 1

www.ecliptek.com | Specification Subject to Change Without Notice | Rev H 2/17/2010 | Page 5 of 7

T Min

T Max

Critical Zone

T to T

L P

Ramp-up Ramp-down

t 25°C to Peak

t Preheat

StL

Temperature (T)

Time (t)

Recommended Solder Reflow Methods

EC3245HSTA-27.000M

Low Temperature Infrared/Convection 185°C

TS MAX to TL (Ramp-up Rate) 5°C/second Maximum

Preheat

- Temperature Minimum (TS MIN) N/A

- Temperature Typical (TS TYP) 150°C

- Temperature Maximum (TS MAX) N/A

- Time (tS MIN) 60 - 120 Seconds

Ramp-up Rate (TL to TP)5°C/second Maximum

Time Maintained Above:

- Temperature (TL)150°C

- Time (tL)200 Seconds Maximum

Peak Temperature (TP)185°C Maximum

Target Peak Temperature (TP Target) 185°C Maximum 2 Times

Time within 5°C of actual peak (tp)10 seconds Maximum 2 Times

Ramp-down Rate 5°C/second Maximum

Time 25°C to Peak Temperature (t) N/A

Moisture Sensitivity Level Level 1

www.ecliptek.com | Specification Subject to Change Without Notice | Rev H 2/17/2010 | Page 6 of 7

T Min

T Max

Critical Zone

T to T

L P

Ramp-up Ramp-down

t 25°C to Peak

t Preheat

StL

Temperature (T)

Time (t)

Recommended Solder Reflow Methods

EC3245HSTA-27.000M

Low Temperature Solder Bath (Wave Solder)

TS MAX to TL (Ramp-up Rate) 5°C/second Maximum

Preheat

- Temperature Minimum (TS MIN) N/A

- Temperature Typical (TS TYP) 150°C

- Temperature Maximum (TS MAX) N/A

- Time (tS MIN) 30 - 60 Seconds

Ramp-up Rate (TL to TP)5°C/second Maximum

Time Maintained Above:

- Temperature (TL)150°C

- Time (tL)200 Seconds Maximum

Peak Temperature (TP)245°C Maximum

Target Peak Temperature (TP Target) 245°C Maximum 1 Time / 235°C Maximum 2 Times

Time within 5°C of actual peak (tp)5 seconds Maximum 1 Time / 15 seconds Maximum 2 Times

Ramp-down Rate 5°C/second Maximum

Time 25°C to Peak Temperature (t) N/A

Moisture Sensitivity Level Level 1

Low Temperature Manual Soldering

185°C Maximum for 10 seconds Maximum, 2 times Maximum.

High Temperature Manual Soldering

260°C Maximum for 5 seconds Maximum, 2 times Maximum.

www.ecliptek.com | Specification Subject to Change Without Notice | Rev H 2/17/2010 | Page 7 of 7