VS-505 Single Frequency VCSO
Vectron International, 267 Lowell Road, Hudson, NH 03051 Tel: 1-88-VECTRON-1 • Web: www.vectron.com
Page 2 of 9 Rev: 01Apr2010
Electrical Performance: 3.3V LV-PECL
Parameter Symbol Minimum Typical Maximum Units Notes
Frequency
Nominal Frequency fN 120 1000 MHz 1,2,3
Absolute Pull Range APR ±50 ppm 1,2,3,9
Linearity Lin
±7 % 2,4,9
Gain Transfer (Standard) KV +445 ppm/V 2,9
Temperature Stability fSTAB ±100 ppm 1,7
Supply
Voltage (± 10%) VCC 2.97 3.3 3.63 V 2,3
Current (Typical 50Ω Load) ICC 73 mA 3
Current (No Load) ICC 60 75 mA 3
Outputs
Mid Level VCC-1.5 VCC-1.3 VCC-1.1 mV 2,3
Single Ended Swing 750 mV-pp 2,3
Differential Swing 1.5 V-pp 2,3
Current IOUT 20 mA 7
Rise Time tR 180 250 ps-pp 6,7
Fall Time tF 180 250 ps-pp 6,7
Symmetry SYM 45 50 55 % 2,3
Spurious Suppression 85 90 dBc 7
Jitter (>491.52 MHz to <1000.0 MHz) φJ 150 fs-rms 7,8
Jitter (>245.76 MHz to <491.52 MHz) φJ 190 fs-rms 7,8
Jitter (>122.88 MHz to <245.76 MHz) φJ 280 fs-rms 7,8
Control Voltage
Input Impedance (Output Enabled) ZC 130
kΩ 7
Input Impedance (Output Disabled) ZC 472
kΩ 7
Modulation Bandwidth BW 200 kHz 7
Operating Temperature TOP -40 +85 °C 1,3
Package Size 9.1 x 13.8 x 3.7 mm
1. See Standard Frequencies and Ordering Information (Pg 8).
2. Parameters are tested with production test circuit (Pg 3).
3. Parameters are tested at ambient temperature with test limits guard-banded for specified operating temperature.
4. Measured as the maximum deviation from the best straight-line fit, per MIL-0-55310.
5. The Vc Model is described below (Fig 1).
6. Parameters are described with waveform diagram below (Fig 2).
7. Not tested in production, guaranteed by design, verified at qualification.
8. For Frequencies >491.52 MHz, Jitter is Integrated across 50 kHz to 80 MHz.
For Frequencies <491.52 MHz, Jitter is Integrated across 12 kHz to 20 MHz. (Both per GR-253-CORE Issue3).
9. Tested with Vc = 0.3V to 3.0V.
Figure 1. Vc Model – Output Enabled
Figure 2. 10K LV-PECL Waveform
+
-
t
tB
tRtF
80%
20%
Vcc-1.5V
Vcc-1.3V
Vcc-1.1V
Vcc=+2V
SYM = 100 x t
/ tB
Vc
123kΩ
1.65V
47pF
6.8kΩ