ECS 3250SS Data Sheet

 Low EMI Output
 5 x 3.2 mm Footprint
 Wide frequency range
 Pb Free/RoHS Compliant

OPERATING CONDITIONS / ELECTRICAL CHARACTERISTICS

PARAMETERS CONDITIONS

Frequency Range
Operating Temperature
Storage Temperature
Supply Voltage
Frequency Stability

Spread spectrum range
Center spread

Input Current
Output Symmetry

Rise and Fall Times
"0" level
"1" level
Output Load
Enable/Disable delay time
Startup time
Aging (first year)

Jitter (Cycle to Cycle)

Referred to frequency avg.

10.000 to 28.000 MHz

28.100 to 168.000 MHz
@ 50% VDD level

10% VDD to 90% level

10.000 to 20.000 MHz

20.10.000 to 168.000 MHz

VDD

Option A
Option B
Option C

VOL

VOH

CMOS

at +25°C ±3°C

ECS-3250SS (+3.3V)

MIN TYP MAX

10.000

-10

-40

+3.135

40/60

90% VDD

ECS-3250SS

SPREAD SPECTRUM OSCILLATOR

ECS-3250SS Spread Spectrum EMI output SMD oscillators
provide cost effective EMI reduction.

UNITS

MHz

°C

°C
VDC
ppm

%
%

%
mA
mA

%

ns
VDC
VDC

pF

ns

ms

ppm

pS
pS

+3.3

168.000
+70
+85

+3.465

± 50

± 0.5

± 1
± 2

13
15

60/40

5

10% VDD

15
10
10

± 5
200
100

DIMENSIONS (mm)

Figure 1) Top, Side and Bottom views Figure 2) Suggested Land Pattern

PART NUMBERING GUIDE: Example ECS-3250SS-270-3B

ECS - Series - Frequency Abbreviation - Voltage Spread Spectrum Range

3250SS

270 = 27.000 MHz

See Frequency

Abbreviations (Pg 2)

3 =3.3V

A = ± 0.5%
B = ± 1.0%
C = ± 2.0%

Pin Connections

Pin #1
Pin #2
Pin #3
Pin #4

Tri-State Control Voltage

Pad 1

Open
VIH 90% VDD Min
VIL 10% VDD Max

Note: Internal crystal oscillation to be halted
(Pin #1=VIL)

Tri-State

Ground

Output

VDD

Pad 3
Oscillation
Oscillation

High Impedance

1105 South Ridgeview Road z Olathe, KS 66062 z Phone: [phone] z Fax: [phone] z www.ecsxtal.com

Frequency Abbreviations

ECS-3250SS

SPREAD SPECTRUM OSCILLATOR

FREQUENCY

MHz

24.000

25.000

27.000

40.000

54.000

TEST CIRCUIT

CODE

240
250
270
400
540

SREAD SPECTRUM FOR EMI REDUCTION

± 1% CENTER SPREAD AT 100 MHz

TAPE DIMENSIONS (mm)

Package Data

Item Description

Lid Metal

Base

Sealing

Terminal

Plating

RoHS

1105 South Ridgeview Road z Olathe, KS 66062 z Phone: [phone] z Fax: [phone] z www.ecsxtal.com

Ceramic

Seam

Tungsten (metalized)

Gold/Nickel

(Surface)/(Under)

Compliant (Pb Free)