Agilent VTO-1990-SMA,
VTO-2150-SMA
Voltage Controlled Oscillator
Data Sheet
Features
鈥?Operating frequency:
19.906 or 21.509 GHz
鈥?Output power (50鈩?load):
3 dBm minimum
鈥?Modulation sensitivity:
10 to 20 MHz/V
鈥?Tuning voltage:
0 to 10 Volts
Amp
X2
Output
Description
The VTO-1990-SMA and
VTO-2150-SMA 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
40 Gb fiber optic systems.
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 an Agilent GaAs FET
MMIC amplifier and MMIC
multiplier chain to double the
frequency. Finally the output is
filtered through a bandpass filter
prior to outputting the signal at
19.906 or 21.509 GHz.
Functional Block Diagram
鈥?Low jitter (Less than 50 femto
seconds from 50 KHz to 80 MHz)
鈥?Frequency drift over 0擄C to +75擄C:
40 MHz
鈥?1.180" x 0.950" x 0.400"
鈥?5 Volt bias optional
Applications
鈥?Transmitter and receiver sub-
systems for OC-768/STM-256
applications
鈥?20 GHz source
VTO-1990-SMA and VTO-2150-SMA Absolute Maximum Ratings
[1]
Parameter
Positive Supply Voltage
Tuning Voltage
Operating Temperature
Storage Temperature
Units
V
V
擄C
擄C
Ratings
0 to +10
0 to +12
-10 to +95
-40 to +130
Note:
1. Operation of this device in excess of any of these limits may cause permanent damage.
1
2
3
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