VECTRON VC-700 User Manual

VC-700

Voltage Controlled Crystal Oscillator

Features

• Small Industry Standard Package, 5.0 x 7.5 x 2.8 mm

• Output Frequencies from 77.76 MHz to 180 MHz

• 3.3 V or 5 V Operation

• HFF crystal for ultra low jitter

• Complementary PECL Outputs

• Low phase noise and custom options

• 0/70 ºC or –40/85 ºC operating temperature

• Enable /Disable (PECL)

Applications

PLL circuits for Clock Smoothing and Frequency Translation

• Fiber Channel

• SONET

• SDH, ITU-T G.709

• SONET, GR-253-CORE Issue3

Description

The VC-700 is a voltage controlled crystal oscillator that
operates at the fundamental frequency of the internal HFF
crystal. The HFF crystal is a high-Q quartz device that
enables the circuit to achieve low phase jitter performance
over a wide operating temperature range. The oscillator is
housed in an industry standard hermetically sealed leadless
surface mount package and is available on tape and reel.

10188_VECTRON 05/21/03 3:14 PM Page 1

查询VC-700供应商

VC-700 Voltage Controlled Crystal Oscillator

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

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Electrical Performance

Parameter Symbol Minimum Typical Maximum Units Notes

Frequency f

O

77.76 180 MHz

Supply Voltage (+3.3V) V

DD

3.15 3.3 3.45 V

(+5.0V) V

DD

4.75 5.0 5.25 V

Supply Current I

DD

<65 mA

Output Logic Levels

Output Logic High 0/70 ˚C V

OH

Vcc -1.025 Vcc -0.880 V

Output Logic low 0/70 ˚C V

OL

Vcc -1.810 Vcc -1.620 V

Output Logic High -40/85 ˚C V

OH

Vcc -1.085 Vcc -1.880 V

Output Logic low -40/85 ˚C V

OL

Vcc -1.830 Vcc -1.555 V

Transition Times

Rise Time t

R

1ns

Fall Time t

F

1ns
Symmetry or Duty Cycle SYM 45 50 55 %
Operating Temperature ordering option 0/70 or -40/85 °C
Jitter (12 kHz – 20 MHz BW) 0.3 ps (RMS)
Jitter (50 kHz – 80 MHz BW) 0.5 ps (RMS)
Test Conditions for APR (+5V option)V

C

0.5 4.5 V

Test Conditions for APR (+3.3V option)V

C

0.3 3.0 V

Absolute Pull Range (APR) APR ±32 ppm

±50

Gain Transfer Positive
Control Voltage Bandwidth (-3dB) BW 10 kHz

Package Size 5.0 x 7.5 x 2.8

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