VMEM2Q-B3A-12M7300000 [MICROSEMI]

CMOS Output Clock Oscillator, 12.73MHz Nom, ROHS COMPLIANT, SMD, 4 PIN;


型号：	VMEM2Q-B3A-12M7300000
厂家：	Microsemi
描述：	CMOS Output Clock Oscillator, 12.73MHz Nom, ROHS COMPLIANT, SMD, 4 PIN
文件：	总6页 (文件大小：193K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

VMEM

Military Clock Oscillator

VMEM

Description

Vectron’s VMEM high shock resistant Clock Oscillator is the next generation ruggedized silicon MEMS based stabilized square wave

generator with a CMOS output, operating oﬀ a +1.8, +2.5, +2.7 or +3.3Vdc supply.

The VMEM uses an internal compensation scheme to improve temperature stability which produces temperature performance equivalent

to quartz based products.

Features

Applications

•

Silicon Resonator

•

Smart Munitions

High Shock Survivability

Projectile Electronics

Missiles

+1.8V, +2.5V, +2.7V or +3.3V Operation

CMOS Output

High Shock & Vibration Applications

Output Frequencies to 150 MHz

Enable/Disable for Board Test and Debug

-20/70°C or –40/85°C Operating Temperature

Industry Standard 5.0 x 3.2, 3.2 x 2.5 or 2.5 x 2.0 SMD Footprints

Product is Compliant to RoHS Directive and Fully Compatible

with Lead Free Assembly

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

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Performance Speciﬁcations

Speciﬁcations

Table 1. Electrical Performance

Parameter

Frequency

Symbol

f_O

Min

Typical

Maximum

150.000

Units

MHz

ppm

°C

1.000

Stability (ordering option)

Δf/f_o

T_OP

25, 50, 100

Operating Temperature (ordering option)

-20/70 or -40/85

Operating Supply Voltage¹

(ordering option)

V_DD

1.65

2.3

2.45

3.0

1.8

2.5

2.7

3.3

1.95

2.7

2.95

3.6

Supply Current, Output Enabled

1 to 40MHz

40.01 to 80MHz

80.01 to 125MHz

125.01 to 150MHz

I_DD

Supply Current, Output Disabled

I_DD

Output Logic Levels

Output Logic High²

Output Logic Low²

V_OH

V_OL

0.8*V_DD

0.2*V_DD

Output Load

Output Rise/Fall Time²

t_R

t_F

1.3

Duty Cycle³

SYM

45/55

Period Jitter⁴, RMS, 80MHz Output

Peak to Peak

Start-up Time

t_SU

Enable/Disable⁵

Output Enabled

Output Disabled

V_IH

V_IL

0.75*V_DD

0.25*V_DD

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 2 deﬁnes these parameters. Figure 1 illustrates the operating conditions under which these parameters are tested and speciﬁed.

3] Duty Cycle is measured deﬁned as On Time/Period.

4] Measured using a Wavecrest SIA3300C, 90K samples

5] Output will be active if Enable/Disable is left open.

Description

t_R

t_F

I_DD

V_OH

50%

V_OL

.1μF

V_DD

I_C

V_C

15pF

On Time

Period

Fig 2: Output Waveform

Fig 1: Test Circuit

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

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Table 2. Absolute Maximum Ratings

Parameter

Symbol

V_DD

Ratings

-0.3 to +4.0

-0.3 to (V_DD+0.3)

150

Unit

Power Supply

CMOS Input Voltage

E/D

Junction Temperature

Storage Temperature

T_J

°C

T_STR

-62 to 125

260 / 40

°C

Soldering Temperature / Duration

T_PEAK/ t_P

°C / sec

Enable/Disable Functional Description

Under normal operation the E/D is set to a logic high state or logic low state. When E/D is set to a logic low, the oscillator stops

and the output is in a high impedance state. This helps reduce power consumption as well as facilitating board testing and

troubleshooting. When E/D is set to a logic high state, the oscillator produces an output. Leaving the Enable/Disable pin open

results in an active state with an output frequency.

Outline Drawing, 5.0x3.2 option

Suggested Pad Layout

Units: mm (inches)

Contact Pads are gold ﬂash over palladium over nickel

Figure 3, 5.0x3.2 Package drawing

Table 3. Pin Out

Symbol

E/D

Function

Enable/Disable

Electrical Ground

Output Frequency

Supply Voltage

GND

f_O

V_DD

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

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Outline Drawing, 3.2x2.5 option

Suggested Pad Layout

Units: mm (inches)

Contact Pads are gold ﬂash over pallladium over nickel

Figure 4, 3.2x2.5 Package drawing

Outline Drawing, 2.5x2.0 option

Suggested Pad Layout

Units: mm (inches)

Contact Pads are gold ﬂash over palladium over nickel

Figure 5, 2.5x2.0 Package drawing

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

Page4

Reliability

The VMEMxQ qualiﬁcation tests were performed per MIL-PRF-55310 & the following environmental tests

Table 4. Environmental Compliance

Parameter

Mechanical Shock

Conditions

MIL-STD-202, Method 213, Condition F except 30,000g, 0.1 ms

MIL-STD-883, Method 2007, Condition C, 100g

MIL-STD-202, Method 107, Condition B

MIL-STD-202, Method 105, Condition E

MIL-STD-883, Method 1014, Condition A2 & C

MIL-STD-202, Method 215

Mechanical Vibration

Thermal Shock

Ambient Pressure Operating

Gross and Fine Leak

Resistance to Solvents

Salt Atmosphere

MIL-STD-883, Method 1009, Condition A

MIL-STD-202, Method 106

Moisture Resistance

Low Temperature Storage Life

JESD22-A119, Condition B

Handling Precautions

Although ESD protection circuitry has been designed into the the VMEMxQ, 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.

Table 5. ESD Ratings

Model

Minimum

2000V

Human Body Model

Charged Device Model

Machine Model

500V

200 V

Suggested IR Proﬁle

Devices are built using lead free epoxy and can also be subjected to standard lead free IR reﬂow conditions. Figure 6 shows max

temperatures and lower temperatures can also be used e.g. peak temperature of 220C.

Table 6. Reﬂow Proﬁle

Parameter

Symbol

Value

PreHeat Time

Ts-min

t_S

60 sec Min, 260 sec Max

150°C

200°C

Ts-max

Ramp Up

R_UP

t_L

3 °C/sec Max

60 sec Min, 150 sec Max

255-260°C

Time Above 217 °C

Peak Temperature

t_P

Time To Peak Temperature T_{25C to Peak}

480 sec Max

Time at Peak Temperature

Ramp Down

t_P

20 sec Max

R_DN

6 °C/sec Max

Figure 6

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

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Ordering Information

Standard Frequencies (MHz)

2.000

9.216

3.686

9.600

4.000

10.000

21.000

32.000

55.000

83.333

127.872

4.032

12.000

21.500

33.000

56.448

84.000

4.9152

12.500

22.000

33.333

58.320

95.000

5.000

12.729

23.000

36.000

60.000

100.000

6.000

14.31818

24.000

7.3728

14.746

25.000

40.000

66.000

112.500

7.680

16.000

26.000

42.500

66.666

114.000

8.000

16.128

27.000

45.000

72.000

115.200

17.000

29.4912

48.000

75.000

116.640

20.000

30.000

50.000

80.000

125.000

37.500

64.000

110.000

Other Frequencies Available Upon Request.

VMEMxQ - x 3 x - 25M0000000

Product Family

Ruggedized MEM’s Oscillator

Frequency (See Above)

In MHz

Package Size

5: 5.0x3.2mm

3: 3.2x2.5mm

2: 2.5x2.0mm

Stability Options

A: 100ppm, -20 to 70°C

B: 50ppm, -20 to 70°C

C: 100ppm, -40 to 85°C

D: 50ppm, -40 to 85°C

E: 25ppm, -10 to 70°C

F: 25ppm, -40 to 85°C

Voltage Options

B: +3.3Vdc

J: +2.7Vdc

Electrical Options

3: Enable/Disable, 45/55% Duty Cycle

G: +2.5Vdc

H: +1.8Vdc

Example: VMEM2Q-H3D-40M0000000 = 2.5x2.0, +1.8V, E/D, 45/55%, 50ppm over -40/85°C with a 40.000MHz output

For Additional Information, Please Contact

USA:

Europe:

Asia:

Vectron International

267 Lowell Road

Hudson, NH 03051

Tel: 1.888.328.7661

Vectron International

Landstrasse, D-74924

Neckarbischofsheim, Germany

Tel: +49 (0) 3328.4784.17

1F-2F, No 8 Workshop, No 308 Fenju Road

WaiGaoQiao Free Trade Zone

Pudong, Shanghai, China 200131

Tel: 86.21.5048.0777

Fax: 1.888.329.8328

Fax: +49 (0) 3328.4784.30

Fax: 86.21.5048.1881

Disclaimer

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.

Rev: 03/26/2010

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

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