44

Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com

**Oven Controlled Crystal Oscillators (OCXO's)**

**OC-290 **

**Performance Characteristics**

Frequency:

10, 12.8, 16.384, 19.44, 20, 24.576, 20.48, 32.768, 38.88, 40 and 77.76 MHz

Available from 2 MHz to 80 MHz

Package Size:

25.4 x 22.0 x 10.5 mm (1.0" x 0.9" x 0.42")

Supply Voltage (Vdd):

**C **= 5 Vdc +5%

**D **= 3.3 Vdc +5%

(Other supply voltages are available upon request)

Supply Current:

<5W peak at turn-on, <1.25W stabilized @ 25

o

C (Temp Range **B **& **D**)

<5W peak at turn-on, <1.5W stabilized @ 25

o

C (Temp Range **F**)

Output Type:

HCMOS, LVHCMOS

Sinewave +0 dBm / 50 ohm

10 TTL

Standard Stability Options:

**B - 508 **= +5x10

-8

over 0

o

C to +50

o

C

**B - 758 **= +7.5x10

-8

over 0

o

C to +50

o

C

**Note: **Not all stabilities are

***B - ST3 **= Stratum 3

over 0

o

C to +50

o

C

available with all frequency/output

**D - 758 **= +7.5x10

-8

over-20

o

C to +70

o

C

combinations. Please consult factory.

**D - 107 **= +1.0x10

-7

over -20

o

C to +70

o

C

*

**D -ST3 **= Stratum 3

over -20

o

C to +70

o

C

**F -107 **= +1.0x10

-7

over -40

o

C to +85

o

C

***F -ST3 **= Stratum 3

over -40

o

C to +85

o

C

**F -507 **= +5.0x10

-7

over -40

o

C to +85

o

C

***STRATUM 3 per GR-1244-CORE Table 3-1**

Total Stability:

<4.6 x 10

-6

for all causes and 10 years

vs. Holdover:

<3.2 x 10

-7

for all causes and 24 hours

vs. Temperature:

<2.8 x 10

-7

peak to peak

Stability vs. Supply:

<5 pb for a 1% change in Supply Voltage

Aging:

**A**: 1 x 10

-8

/day, 2x10

-6

/year

**C**: 1 x 10

-9

/day, 3x10

-7

/year

**B**: 3 x 10

-9

/day, 1x10

-6

/year

**N**: PTR Stratum 3

Electrical Frequency Adjust:

10 x 10

-6

typical range (with Aging **A **or **B**)

2 x 10

-6

typical range (with Aging **C**) (with **F**; no frequency adjustment)

Initial Accuracy @ +25

o

C:

+1.5 ppm max after reflow

**Characteristic**

**Parameter**

**Description:**

**Small SMD OCXO with tight stability. **

AT and SC-cut versions available.

**Features**

** 5 MHz, 10 MHz, 13 MHz standard. **

**Other frequencies available from 2 to 80 MHz**

** Stability as low as 5 x 10**

**-8**

**over 0C to 50C **

** Aging: 1 x 10**

**-9**

**per day **

** Package: 25.4 x 22 x 10.5 mm**

** Supply voltage: +3.3 or +5.0 V**

8798_AA's Vectron 05/30/02 3:11 PM Page 44

Vectron International 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 Web: www.vectron.com

45

**Oven Controlled Crystal Oscillators (OCXO's)**

**Pad Layout**

0.1

(2.5)

0.1

(2.5)

1.0

.01

(25.4

0.2)

0.03

R(O

.75)

4

5

soldering pods

1

1

2

3

5

4

2

3

.70

.01

(17

.

8

0.2)

0.87

.01

(22

0.2)

0.41

max (10.5)

Foot pr

for PCB D

0.93

(23.5

5

Foot print

for PCB Design

0.93

(23.5)

0.16

(4)

0.14

(3.5)

.70

(17

.

8)

1 Control voltage VC

2 Reference voltage output VREF

3 Supply voltage VB

4 RF-output

5 Ground, case

**Recommended Soldering Profile**

**Ordering Information**

**OC**

**Temperature Range**

B - 508 = +5x10

-8

over 0

o

C to +50

o

C

**B - 758 **= +7.5x10

-8

over 0

o

C to +50

o

C

***B - ST3 **= Stratum 3

over 0

o

C to +50

o

C

**D - 758 **= +7.5x10

-8

over-20

o

C to +70

o

C

**D - 107 **= +1.0x10

-7

over -20

o

C to +70

o

C

*

**D -ST3 **= Stratum 3

over -20

o

C to +70

o

C

**F -107 **= +1.0x10

-7

over -40

o

C to +85

o

C

***F -ST3 **= Stratum 3

over -40

o

C to +85

o

C

**F -507 **= +5.0x10

-7

over -40

o

C to +85

o

C

**Frequency**

2 MHz to 80 MHz

**290**

**A**

**C**

**C**

**508**

**C**

**10.0**

**Product Family**

OC = OCXO

**Package**

290 = 25.4X22 mm

SMD package

**Input**

C = 5.0V +5%

**D **= 3.3V +5%

**Output**

A = HCMOS, LVHCMOS

**B **= 10 TTL

**G **= Sinewave

**MHz**

**A**

**Outline Drawing**

**Pin Out Information**

**OC-290 **

O C X O

**Aging**

A = 1 x 10

-8

/day, 2 x 10

-6

/year

**B **= 3 x 10

-9

/day, 1 x 10

-6

/year

**C **= 1 x 10

-9

/day, 3 x 10

-7

/year

**N **= PTR Stratum 3

**Electrical Frequency Adjust**

A: 10 x 10

-6

typical range (with Aging **A **or **B**) or

2 x 10

-6

typical range (with Aging **C**)

F: Fixed frequency. See initial accuracy.

8798_AA's Vectron 05/30/02 3:11 PM Page 45