VVC1, VVC2 Voltage Controlled Crystal Oscillator

Vectron International 267 Lowell Rd, Hudson NH 03051

Tel: 1-88-VECTRON-1

e-mail: vectron@vectron.com

Performance Characteristics

Table 1. Electrical Performance

Parameter

Symbol

Min

Typical

Maximum

Units

Frequency

1.544

65.536

MHz

Supply Voltage

1

(+5.0 V ± 5%)

(+3.3 V ± 5%)

(+2.7 V + 5%)

4

4.750

3.135

2.7

5.0

3.3

2.7

5.250

3.465

2.835

V

Supply Current +5.0 V,1.544-30.000MHz

+5V, 30.001-50.000

+5V, 50.001-77.760

+2.7 or +3.3 V, 1.544-30.000MHz

+2.7 or +3.3 V, 30.001-50.000MHz

+2.7 or +3.3 V, 50.001-77.760MHz

10

12

18

5

9

14

mA

Output Logic Levels

Output Logic High

2

Output Logic Low

2

V

V

Transition Times

Rise Time

2

Fall Time

2

5

5

ns

ns

Symmetry or Duty Cycle

3

SYM

45

50

55

%

Operating temperature (ordering option)

0/70 or –40/85

°C

Total Pull Range (ordering option)

Or

Absolute Pull Range

±50, ±100 or ±150

±50, ±80 or ±100

ppm

Test Conditions for APR (+5V option)

0.5

4.5

V

Test Conditions for APR (+3.3V option)

0.3

3.0

V

Gain Transfer

Positive

ppm/V

Control Voltage Impedance

90

Kohm

Control Voltage Bandwidth (-3dB)

BW

10

kHz

Package Size

5.0 x 7.0 x 1.9

mm

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.

4. Only available as 50 ppm APR.

Figure 1. Output Waveform

Figure 2. Typical Output Test Conditions (25

±5°C)

80

%

Vs

20

%

t

F

t

R

Period

On Time

+

-

+

-

I

C

V

C

4

3

μF

.01

μF

15pF

25

6

1

I

DD

650

Ω

V

DD

1.8k