546SA-12.8 datasheet, PDF - EEWORLD Datasheet

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546SA-12.8: DescriptionCMOS Output Clock Oscillator, 12.8MHz Nom; CategoryPassive components oscillator; File Size36KB，2 Pages; ManufacturerCTS

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546SA-12.8 Overview

CMOS Output Clock Oscillator, 12.8MHz Nom

546SA-12.8 Parametric

Parameter Name	Attribute value
Maker	CTS
Reach Compliance Code	unknown
Ageing	2.5 PPM/20 YEAR
maximum descent time	6 ns
Frequency Adjustment - Mechanical	NO
frequency stability	0.25%
Manufacturer's serial number	VTTN
Installation features	SURFACE MOUNT
Nominal operating frequency	12.8 MHz
Maximum operating temperature	50 °C
Minimum operating temperature	-5 °C
Oscillator type	CMOS
Output load	10 KOHM, 15 pF
physical size	1.15mm x 1mm x 0.39mm
longest rise time	6 ns
Maximum supply voltage	5.25 V
Minimum supply voltage	4.75 V
Nominal supply voltage	5 V
surface mount	YES
maximum symmetry	60/40 %
Base Number Matches	1

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Rev. X01

Preliminary Specification

CTS

♦

Frequency Stability to Stratum 3 of GR-1244

♦

Patented Voltage Tuned Thermistor Network

♦

Very Low Phase Jitter: < 1 pSec

♦

+3.3Vdc or +5.0Vdc Operation

♦

Precision Low Aging “

AT” Cut Crystal

♦

Compatible with Semtech SETS Chipsets

♦

Surface Mount Pkg. – Matches Vectron Z5

Model 546

“VTTN™ ” Series

Stratum 3 TCXO

Electrical Characteristics

Parameter

Power

Requirements

Power Supply

Supply Current

Frequency

Stabilities

Center Frequency

Sym

Vcc

Icc

Conditions

±

5%

546L

±

5%

546S

Vcc=Max. (3.3Vdc)

Std. Load (5.0Vdc)

Min

3.135

4.75

Typical

3.30

5.0

12

15

Max

3.465

5.25

Note 1

Unit

Vdc

mA

f

nom

1.25

Initial Tolerance

Freq. vs. Temp.

Freq. vs. Voltage

Freq. vs Time

(Aging)

24 Hour Holdover

Stability

Total Free-

Running Accuracy

Waveform:

CMOS Output

Symmetry

Amplitude

Rise/Fall Times

Load

Phase Noise

f

cal

∆f/∆Temp

Ta=+25°C

38.88

20

19.44

12.8

10

±

0.75

±

0.25

38.88

MHz

ppm

±

0.37

±

4.6

ppm

∆f/∆Vcc

∆f/∆Time

∆f/24Hr

∆f/Life

Vcc

±

5%

20 years

Inclusive of Temp.,

Supply Variation

and 24Hrs. Aging

All Cond. for 20

Yrs. (Ref. to f

nom

)

±

0.1

±

2.5

±

0.30

ppm

Sym

Vo

tr, tf

RL

Pn

@ 50% Level

Logic “

1”

Logic “

0”

20% to 80%

Output to Ground

Offset = 100HZ

1KHz

10KHz

100KHz

12KHz to 20MHz

Bandwidth

40

0.8Vcc

50

60

0.3

6

%

V

nSec

dBc/Hz

10KΩ



15pF

-115

-130

-140

-150

1.0

Phase Jitter

pSec RMS

Note 1: Maximum Current will vary with Frequency

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