Agilent VTO-8951 Voltage Controlled Oscillator Data Sheet Features • Operating frequency: 9.50 to 11.0 GHz • Output power (50Ω Load): 10 dBm minimum • Modulation sensitivity: 150 to 250 MHz/V Description The VTO-8951 provides a fundamental, low jitter source as a key component for the data re-timing in the transmitter subsystem and clock and data recovery in the receiver of the 10 Gb fiber optic systems. Functional Block Diagram • Tuning voltage: 0 to 10 Volts • Low jitter • Frequency drift over 0°C to +75°C: 100 MHz Amp Output • 0.5" D x 0.18" H Applications • Sonet, FEC and 10 Gbits Ethernet Applications The oscillator uses an extremely high performance low noise Agilent Silicon Bipolar transistor in conjunction with a hyperabrupt varactor diode to provide the tuning capability. The oscillator output is then coupled to through a bandpass filter to the output. • Industry standard package – hermetic using thin film construction VTO-8951 Absolute Maximum Ratings [1] Parameter Units Ratings Positive Supply Voltage V 5.2 Tuning Voltage V +15 Operating Temperature °C -10 to +100 Storage Temperature °C -40 to +130 Note: 1. Operation of this device in excess of any of these limits may cause permanent damage. VTO-8951 Summary Characterization, 0°C to 75°C Parameter Units Min Typ Max Frequency Range GHz 9.50 Vt @ 9.5 GHz V 0 Vt @ 11 GHz V Power Output ( 50Ω Load @ 8 V) dBm Modulation Sensitivity Modulation Bandwidth Second Harmonic (Below Carrier) dBc -15 Third Harmonic (Below Carrier) dBc -15 Spurious Output (Below Carrier) dBc -60 Phase Noise @ 100 KHz from Fo (Below Carrier) dBc/Hz Frequency Drift over Temperature MHz 100 Pulling Figure (12 dB Return Loss) MHz 30 Pushing Figure, ±0.2V Supply MHz 10 Positive Supply Voltage V Positive Supply Current mA Tuning Port Input Capacitance pf Dimensions Inches 11.00 10 10 15 MHz/V 150 250 MHz 100 -90 4.8 -85 5 5.2 100 12 0.5" D x 0.18" H Typical Performance Curves @ +25°C 250 -60 FREQUENCY (GHz) SSB PHASE NOISE (dBc/Hz) -40 -80 -100 -120 -140 11 200 10 150 -160 -180 -200 10 100 1K 10K 100K 1M 10M 100M OFFSET FROM CARRIER (Hz) Figure 1. Typical Phase Noise Performance at 11.0 GHz. 2 9 100 0.1 1.1 2.1 3.1 4.1 5.1 6.1 7.1 8.1 9.1 10.1 TUNING VOLTAGE (Vdc) Figure 2. Frequency and Modulation Sensitivity vs. Tuning Voltage. 15 14 POWER (dBm) 12 MODULATION SENSITIVITY (MHz/V) 0 -20 13 12 11 10 0 1 2 3 4 5 6 7 TUNING VOLTAGE (Vdc) Figure 3. Power Output. 8 9 10 Ordering Information Part Number VTO-8951 Package Drawing and Mechanical Dimensions (inches) 0.300 TYP 0.20 0.150 TYP 0.017 +0.002 –0.001 GND 0.50 DIA 0.45 DIA 0.300 TYP 0.149 TYP Vtune RF out +Bias 0.22 MIN GLASS φ0.060 DIMENSIONS ARE SPECIFIED IN INCHES 3 www.agilent.com/semiconductors For product information and a complete list of distributors, please go to our web site. For technical assistance call: Americas/Canada: +1 (800) 235-0312 or (408) 654-8675 Europe: +49 (0) 6441 92460 China: 10800 650 0017 Hong Kong: (+65) 6271 2451 India, Australia, New Zealand: (+65) 6271 2394 Japan: (+81 3) 3335-8152(Domestic/International), or 0120-61-1280(Domestic Only) Korea: (+65) 6271 2194 Malaysia, Singapore: (+65) 6271 2054 Taiwan: (+65) 6271 2654 Data subject to change. Copyright © 2002 Agilent Technologies, Inc. Obsoletes 5988-6663EN December 19, 2002 5988-8575EN