VDLNLD-44.736 [VECTRON]

Voltage Controlled Crystal Oscillator; 压控晶体振荡器


型号：	VDLNLD-44.736
厂家：	Vectron International, Inc
描述：	Voltage Controlled Crystal Oscillator 压控晶体振荡器振荡器晶体振荡器
文件：	总6页 (文件大小：101K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

V-Type

Voltage Controlled Crystal Oscillator

Features

• Output frequencies to 80.000 MHz

• 5.0 or 3.3 V operation

• Tri-State Output

• Low jitter < 6ps rms

• VCXO with CMOS outputs

• APR to 100 ppm

• 0/70 or –40/85 °C temperature range

• Hermetically sealed ceramic SMD package

Product is compliant to RoHS directive

and fully compatible with lead free assembly

The V-Type Voltage Controlled Crystal Oscillator

Applications

• SONET/SDH

• DWDM

• xDSL/PCMCIA cards

• Digital Video

ESD Diodes

Description

f_O

Output

Buffer /

Tri-state

Vectron’s V-Type Voltage Controlled Crystal

Oscillator (VCXO) is a quartz stabilized square

wave generator with a CMOS output and is

tested at CMOS and TTL (5.0 volt operation)

logic levels.

Input

Buffer

The V-Type’s small footprint and low profile

make it ideally suitable for PCMCIA applications

as well as any other where size is limited but

performance is required.

Vectron International 267 Lowell Road, Hudson NH 03051

Tel:1-88-VECTRON-1

e-mail: vectron@vectron.com

V-Type Voltage Controlled Crystal Oscillator

Performance Characteristics

Table 1. Electrical Performance

Parameter

Symbol

f_O

V_DD

Min

1.024

2.97

4.5

Typical

Maximum

80.000

3.63

Units

MHz

Frequency

Supply Voltage ¹

(+3.3 V)

(+5.0 V)

3.3

5.0

5.5

Supply Current

I_DD

Output Logic Levels

Output Logic High²

Output Logic Low²

Transition Times

Rise Time²

V_OH

V_OL

0.9*V_DD

0.1V_DD

t_R

t_F

Fall Time²

Tristate

Output Enabled

Output Disabled

Duty Cycle³

Operating temperature (ordering option)

Test Conditions for APR (+5V option)

Test Conditions for APR (+3.3V option)

Absolute Pull Range (ordering option)

V_IN

V_IL

SYM

2.5

°C

0.7

(ordering option)

40/60 or 45/55

0/70 or –40/85

V_C

APR

0.5

0.3

±50

±70

±80

±100

4.5

3.0

ppm

Gain Transfer (See Figure 3)

Control Voltage Leakage Current

Control Voltage Bandwidth (-3dB)

Phase Noise

Positive

ppm/V

kHz

I_VCXO

±1

10 Hz Offset

100 Hz Offset

1 KHz Offset

10 KHz Offset

-55

-85

-115

-142

-148

-151

dBc/Hz

100 KHz Offset

1 MHz Offset

Package Size

7.49 x 5.08 x 1.8

1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended.

2. Figure 1 defines these parameters. Figure 2 illustrates the equivalent five gate TTL load and operating conditions under which

these parameters are tested and specified.

3. Symmetry is defined as (ON TIME/PERIOD with Vs= 1.4 V for TTL and Vs=2.5 V for CMOS, 5 volt operation, and Vs=1.65V

for 3.3 Volt operation.

t_F

t_R

I_DD

650Ω

80%

V_DD

.01µF

.1µF

20%

I_C

V_C

On Time

15pF

1.8k

Period

Figure 1. Output Waveform

Figure 2. Typical Output Test Conditions (25±5°C)

Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1

e-mail: vectron@vectron.com

V-Type Voltage Controlled Crystal Oscillator

Outline Diagram, Pad Layout and Pin Out

Pin #

Symbol

V_C

Function

Control Voltage

Tri-state or N/C

(ordering option)

GND

Logic low disables output

Logic high or no connection enables output waveform

Ground

f_O

Output Frequency

Tri-state or N/C

(ordering option)

V_DD

Logic low disables output

Logic high or no connection enables output waveform

Supply Voltage

Tape and Reel

Tape and Reel Dimensions (mm)

Tape Dimensions

Reel Dimensions

# Per

Product

V-Type

7.5

1.55

1.78

20.6

12.4

178

Reel

500

Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1

e-mail: vectron@vectron.com

V-Type Voltage Controlled Crystal Oscillator

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can permanently damage the device. Functional

operation is not implied at these or any other conditions in excess of conditions represented in the

operational sections of this data sheet. Exposure to absolute maximum ratings for extended periods may

adversely affect device reliability.

Table 2. Absolute Maximum Ratings

Parameter

Power Supply

Storage Temperature

Voltage Control Range

Symbol

V_DD

Tstorage

V_C

Ratings

-55/125

0 to V_DD

Unit

Vdc

°C

200.0

150.0

100.0

50.0

0.0

-50.0

-100.0

-150.0

-200.0

0.30

0.60

0.90

1.20

1.50

1.80

2.10

2.40

2.70

3.00

Control Voltage (volts)

Figure 3. Typical Frequency Pull Versus Control Voltage, 35.328MHz Output, 3.3 Volt

Supply

Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1

e-mail: vectron@vectron.com

V-Type Voltage Controlled Crystal Oscillator

Reliability

The V-Type is capable of meeting the following qualification tests.

Table 3. Environmental Compliance

Parameter

Conditions

Mechanical Shock

Mechanical Vibration

Solderability

Gross and Fine Leak

Resistance to Solvents

MIL-STD-883 Method 2002

MIL-STD-883 Method 2007

MIL-STD-883 Method 2003

MIL-STD-883 Method 1014

MIL-STD-883 Method 2016

Handling Precautions

Although ESD protection circuitry has been designed into the the V-Type, proper precautions should be

taken when handling and mounting. VI employs a Human Body Model and a Charged-Device Model

(CDM) for ESD susceptibility testing and design protection evaluation. ESD thresholds are dependent on

the circuit parameters used to define the model. Although no industry wide standard has been adopted

for the CDM, a standard HBM of resistance = 1.5kohms and capacitance = 100pF is widely used and

therefore can be used for comparison purposes.

Table 4. ESD Ratings

Model

Human Body Model

Charged Device Model

Minimum

1500

1000

Conditions

MIL-STD-883 Method 3115

JESD 22-C101

The V-Type is qualified to meet the JEDEC standard for Pb-Free assembly. The temperatures and time

intervals listed are based on the Pb-Free small body requirements and parameters are listed in the table

below. The contact pads are gold over nickel so lower IR reflow temperatures such as 220°C can be

used (device is backwards compatible with a lead solder assembly).

The V-Type is hermetically sealed so an aqueous wash is not an issue.

Table 5. Reflow Profile (IPC/JEDEC J-STD-020C)

Parameter

Symbol

Value

PreHeat Time

t _S

60 sec Min, 180 sec Max

Ramp Up

R _UP

t _L

3 ^oC/sec Max

60 sec Min, 150 sec Max

480 sec Max

Time Above 217 ^oC

Time To Peak Temperature

Time At 260 ^oC

t _AMB-P

t _P

20 sec Min, 40 sec Max

6 ^oC/sec Max

Ramp Down

R _DN

t _L

t _P

260

R _UP

217

200

R _DN

150

t _S

t _AMB-P

Time (sec)

Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1

e-mail: vectron@vectron.com

V-Type Voltage Controlled Crystal Oscillator

Standard Frequencies (MHz)

1.024

4.000

1.544

4.032

2.000

4.096

2.048

4.434

3.088

5.000

3.580

6.144

3.686

6.176

6.312

6.400

8.000

8.192

8.448

10.000

15.440

24.000

32.768

49.152

74.1758

12.000

16.000

24.576

34.368

50.000

74.250

12.288

16.384

24.704

35.328

51.840

77.760

12.352

18.432

27.000

38.880

52.000

13.000

19.440

30.000

40.000

61.440

14.318

20.000

30.720

40.960

62.500

15.360

20.480

32.000

44.736

65.536

Other frequencies may be available upon request

Ordering Information

V D U G L A - 44.736 ^MHz

Package Size

V: 6 pin ceramic LCC

Frequency

Symmetry (CMOS)

A: 50 ± 5% Tri-State on Pin #5

B: 50 ± 10% Tri-State on Pin #5

D: 50 ± 5% Tri-State on Pin #2

Supply Voltage

C: 5.0V ± 10%

D: 3.3V ± 10%

Temperature Range

C: 0°C to +70°C

L: -40°C to +85°C

Input

U: VCXO

Absolute Pull Range

G: ±50 ppm

L: Linear VCXO

M: ± 20ppm Temperature Stability

M: ±70 ppm

N: ±80 ppm

H: ±100 ppm

NOTE: Not all combinations of options are available. Other specifications may be available upon request.

For Additional Information, Please Contact:

USA: Vectron International • 267 Lowell Road, Hudson, NH 03051

• Tel: 1-88-VECTRON-1 • Fax: 1-888-FAX-VECTRON

EUROPE: Landstrasse, D-74924, Neckarbischofsheim, Germany •

Tel: 49 (0) 7268 8010 • Fax: 49 (0) 7268 801281

ASIA: Vectron Asia Pacific Sales 1F~2F. No.8 Workshop No.308 Fenju Rd., WaiGaoQiao Free

Trade Zone, Pudong New Area Shanghai, China 200131

•Tel: 8621 50480777 • Fax: 8621 50481881

Vectron International reserves the right to make changes to the product(s) and or information contained herein without notice.

No liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information.

Vectron International 267 Lowell Road, Hudson NH 03051 Tel:1-88-VECTRON-1

e-mail: vectron@vectron.com

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