VCO-600A VECTRON | Alldatasheet

Document overview

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Technical content

Features

  • Output Frequency @ 155 MHz to 1 GHz
  • Low jitter, 3pS rms for 622.080 MHz version and 6pS rms (typical) for 155 MHz version
  • Ideal for clock smoothing, frequency translation, clock and data retiming applications
  • 10K ECL, PECL logic levels with fast transition times
  • Complementary outputs
  • Low profile, surface mount package
  • Output disable feature
  • Low-frequency clock through feature
  • Miniature hermetically sealed ceramic surface- mount package (SO-28, approx.0.7in. x 0.3in)

Applications

  • OC192/OC48/OC12 Clock Smoothing
  • Frequency Translation

Description

The VCO600A is a SAW stabilized, voltage controlled oscillator that operates at the fundamental frequency of the internal SAW filter. This filter is a high stability, 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 a hermetically sealed 28-lead surface mount package. It has a unique output disable and clock through feature to facilitate on-board testing.

Table 1. Pin Function

4 CLKIN 1 Test Clock In

10 V EE Negative Supply

17 V BW

2 Modulation Bandwidth

19 V C Control Voltage

21 OD 3 Output Disable

23 CLKOUT ECL Output

25 CLKOUT Complementary

  1. By setting OD low, a test signal may be applied at CLKIN and fed through the VCO-600A to both the CLKOUT and CLKOUT to facilitate on board
  2. An optional capacitor to ground can be placed on VBW to reduce the modulation bandwidth for narrow bandwidth phase-lock loop applications. The

to the nominal device frequency ÷1200.

  1. By setting OD low, the outputs are disabled and CLKOUT is held Low while CLKOUT is held High. The threshold for OD is 1.4V above VEE. OD

Table 2. Electrical Performance

  1. The VCO-600A may be configured for PECL operation. All outputs and inputs including VC are referenced to Vcc
  2. Output Levels are standard 10K ECL and are fully 100K ECL compatible.
  3. Transition times are measured from 20% to 80% of a full 10K ECL level swing.
  4. The modulation bandwidth is a function of nominal center frequency and may be adjusted down through the use of an external capacitor on pin 17.

Please see Figure 1 and Figure 2 along with Notes 1, 2 and 3. Table 3. Typical Single Side-Band Phase Noise (dBc/Hz)

VCO-600A Voltage Controlled SAW Oscillator Vectron International 267 Lowell Rd, Hudson NH 03051-4916 Tel:1-88-VECTRON-1 e-mail vectron@vectron.com J H G F E DC B A L K I Bottom Holes for TRU and VCO Products Only Figure 7. Tape Reel Drawing Table 7. Tape and Reel Dimensions (mm)

Ordering information

Table 8. Part number ordering information 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 accom pany the sale of any such product(s) or information.