VS-500A Voltage Controlled SAW Oscillator
Vectron International 166 Glover Avenue, Norwalk CT 06856-5160
Tel:1-88-VECTRON-1
e-mail vectron@vectron.com
2
Pin Information
Table 1. Pin Function
Pin
Symbol
Function
1VC
VCSO Control Voltage
2
OD
Output Disable
3
GND
Case and Electrical Ground
4
Output
VCSO Output
5
COutput
VCSO Complementary Output
6VCC
Power Supply Voltage (5.0 V
±10%)
1. By setting OD low, the outputs are disabled and OUT is held high while Complementary OUT is held low. The threshold for Output Disable is 1.4V
above pin 3. Output Disable should not be driven above mid supply and during normal operation, should be left floating (use with an open collector or
3-State gate for interfacing with standard logic).
Performance Characteristics
Table 2. Electrical Performance, @ 25
°°°°C
Parameter
Symbol
Minimum
Typical
Maximum
Units
Center Frequency, see ordering information
FN
155
800
MHz
Operating Temperature
TOP
-40
25
+85
°C
Supply Current (no load)
ICC
55
70
mA
Supply Voltage
VCC
4.5
5
5.5
V
Absolute Pull Range over –40 to 85
°C
(Vc= 0.5 to 4.5)
APR
±50
-
ppm
Positive Gain Transfer @ 155.52
(Frequency vs. Control Voltage)
KV
350
ppm/V
Positive Gain Transfer @ 622.080
(Frequency vs. Control voltage)
KV
200
ppm/V
Linearity
Lin
±3
%
Frequency Stability, -40 to 85 wrt 25
°C
FSTAB
±150
ppm
Output Level Low
1
VOL
Vcc-1.95
-
Vcc-1.63
V
Output Level High
1
VOH
Vcc-0.98
-
Vcc-0.75
V
Output Rise Time
2
tR
250
400
ps
Output Fall Time
2
tF
250
400
ps
Jitter @ 155.520 MHz, 12 kHz to 20 MHz
0.439
ps,rms
Jitter @ 622.080 MHz, 12 kHz to 20 MHz
0.276
ps,rms
Jitter @ 622.080MHz, 50 kHz to 80 MHz
0.293
ps,rms
Spurious Suppression
-50
-60
dB
Data Symmetry
SYM
45
49/51
55
%
Control Voltage Input Impedance
Zc
810
12
k
Control Voltage Modulation Bandwidth
BW
-
500
-
kHz
Output Current
IOUT
--
20
mA
1. Output Levels are standard 10K ECL and are fully 100K ECL compatible.
2. Transition times are measured from 20% to 80% of a full 10K ECL level swing.
Table 3. Typical Single Side-Band Phase Noise (dBc/Hz)
Offset from Carrier
100 Hz
1kHz
10kHz
100kHz
VS-500A 622.080
-62
-85
-109
-127
65
4
3
2
1
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