ST2245 Pletronics, ST2245 Datasheet

ST2245

Manufacturer Part Number

ST2245

Description

(ST2244 / ST2245) ST2000 Series Crystal Oscillator

Manufacturer

Pletronics

Datasheet

1.ST2245.pdf (2 pages)

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ST2200 SERIES

n n TRUE TTL OUTPUT

n n LOWER EMI DUE TO LOWER RINGING NOISE (OVERSHOOT/ UNDERSHOOT)

n n 8-PIN (HALF SIZE) THRU-HOLE OSCILLATORS IN METAL PACKAGE

n n AVAILABLE IN SURFACE MOUNT CONFIGURATION

S T A N D A R D S P E C I F I C A T I O N S :

Frequency Range

Frequency Stability over Operating

Temperature Range

Operating Temperature Range

Input Voltage (Vcc)

Symmetry (Duty Cycle)

(See next page for definition.)

Input Current (Icc) & Rise and Fall Time

(Tr & Tf) between 0.4V and 2.4V

Logic “1” & Logic “0” (See next page.)

Output Load

Ringing Noise

Packaging

P A R T N U M B E R I N G G U I D E :

n n The Pletronics part number for an ST2200 series oscillator consists of the following 4 elements:

n n When customer’s requirements are non-standard, a special engineering part number will be assigned.

S T A N D A R D S P E C I F I C A T I O N S :

P A R T N U M B E R I N G G U I D E :

1. Overall Frequency Stability over Operating Temperature Range:

2. Optional Alphabet Designator for Special Requirement:

3. Frequency of Operation in MHz

4. Optional Surface Mount Configuration – SMD

EXAMPLES: ST2245E-10.000 MHz; ST2245P-10.000 MHz, ST2244-10.000 MHz-SMD

Telephone: (425) 776-1880, Fax: (425) 776-2760, e-mail: ple-sales@pletronics.com

ST2245:

ST2244:

ST2245: standard specifications;

ST2245E: operating temperature range of -40 to +85 C;

ST2245P: 45/55% symmetry at Vcc=1.4V;

(There are other alphabet designators not listed here.)

50 PPM;

25 PPM

4.000 – 60.000 MHz (Consult factory for specific available frequencies)

0 - 70 C is standard, but can be extended to -40 to +85 C.

5 Volt

40/60 - 60/40% is standard, but 45/55% symmetry at Vcc=1.4V is

also available.

Depends on frequency and output load. See next page.

2.4V MIN.; 0.4V MAX.

Up to 10 TTL loads +15 pF

Depends on frequency and output load. See EMI application note.

33 parts per tube, SMD: Tape and Reel TBD

50 PPM is standard, but

(continued)

10%

25 PPM is also available.

O6A

Related parts for ST2245

ST2245 Summary of contents

Page 1

... Overall Frequency Stability over Operating Temperature Range: ST2245: ST2244: 2. Optional Alphabet Designator for Special Requirement: ST2245: standard specifications; ST2245E: operating temperature range of -40 to +85 C; ST2245P: 45/55% symmetry at Vcc=1.4V; (There are other alphabet designators not listed here.) 3. Frequency of Operation in MHz 4. Optional Surface Mount Configuration – SMD EXAMPLES: ST2245E-10.000 MHz ...

Page 2

... Input Current (Icc), Rise and Fall time with 15pF Load & Jitter Frequency Range (MHz) 4.000 – 7.999 8.000 – 15.999 16.000 – 21.999 22.000 – 60.000 Recommended Test Circuit with TTL Load *CL (Capacitive Load): Includes the input capacitance of oscilloscope. O6B Pletronics Inc., 19013 36 Icc (mA) Tr & Tf (nS) Typical Maximum Typical 23.0 28.0 4.0 24.0 28 ...

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