l Atal Microelectronics aaa = VCO-600 Voltage-Controlled SAW Oscillator (VCSO) Description The AT&T VCO-600 is a SAW-stabilized, voltage- controlled ECL oscillator that operates at the fundamental frequency of the internal SAW filter. This filter is a high-stability, high-Q quartz device which enables the circuit to achieve low-phase noise performance over a wide temperature range. The VCO-600 has output disable and test clock through features which improve on board testing. It is packaged in a 28-pin small-outline surface-mount ceramic package. The VCO-600 is available with center frequencies between 155 MHz and 1.1 GHz, including the SONET/SDH and ATM frequencies of 155.52 MHz, 311.04 MHz, and 622.08 MHz. Typical uses of the VCO-600 are data retiming and synchronization as part of a phase-locked loop (PLL), as well as frequency translation and frequency synthesis. Electrical Characteristics ppm fram Fo from Fo ppm from Fo from Fo Output Logic Low Rise Time Fail Time 400 or = to +5 10 12 * AVCSO with an APR of 50 ppm will track a +50 ppm source over all operating conditions. APR can be expressed as follows: APR > TPR (Frequency variations due to variations in temperature, aging, power supply, load, and measurement). + Output levels are standard 10K ECL, fully compatible with 100K ECL. + The modulation bandwidth is a function of Fo of the VCO-600, or it can be adjusted by using an external capacitor. 20 MB 0050026 0011260 TO?VCO-600 Voltage-Controlled SAW Oscillator (VCSO) Mechanical Characteristics Parameter Description Mechanical Shock MIL-STD-883, Method 2002, Condition A. Mechanical Vibration MIL-STD-883, Method 2007, Condition A. Solderability MIL-STD-883, Method 2003. Gross Leak Test All units tested to MIL-STD-883, Method 1014. Fine Leak Test All units tested to MIL-STD-883, Method 1014. Resistance to Solvents MIL-STD-883, 2016. Outline Diagram VCO-600 Package Dimensions are in inches and (millimeters). 0.728 +. (18.50) "28 *15 | PIN * FUNCTION MUU a = Arar VCO-600A 3 i 0.413 4 Test clock input : : 5,6,7,8 No connect 622.080 MHz (7.50) (10.485) 10 VEE A 3V94 12 Vec san Add A int ti AED AAD 17 Modulation BW Control THA EHH ERR EEE 19 Voltage control *| *14 21 Output disable 0.017 0.05 23 Output clock (0.42) (1.27) 25 Output clock i 27 = Vec 1,3,9,11,13 Case ground 0.135 (3.43) 14,15,16,18 Case ground CAH THE HEE H+ + 20,22,24,26 Case ground 0.008 28 Case ground (0.20) Ordering Information Standard Frequency (MHz)* Part Number 155.520 107040537 311.040 107012551 622.080 107012569 * Other specifications and frequencies may be available upon request. 3V94 is the date code and represents the month (3), week of the month (V = 5th week) and the year 19(94) of manufacture. MH 005002b 0011eb1 W435 21