Microwave Oscillators: Frequency Locked Oscillator
Application Notes for Microwave Sources
Multi-Band Frequency Locked Oscillator (FLO)
Kratos General Microwave has developed a new product line of Multi-Band Frequency Locked Oscillators (FLO). This product line is an enhancement to our free running Digitally Tuned Oscillator (DTO) products. This FLO combines the high speed of DTO with the high accuracy and long-term stability of a frequency locked source. The key specification feature of the FLO is a timing speed of less than 1μsec to settle within 1 MHz of the desired frequency.
SIMULATOR AND TEST SYSTEMS APPLICATIONS
The FLO was specifically designed for test systems and simulator applications. It is a low cost replacement for high cost direct synthesizers, in applications that the frequency setting time of 1 μsec is meeting the system requirements.
- Fast Settling (1MHz in 1μsec)
- Wideband (2-18 GHz)
- High Accuracy
- Low Phase Noise
SELECTION GUIDE
| FREQUENCY RANGE (GHz) |
MODEL |
COMMENTS |
 |
| FREQUENCY LOCKED OSCILLATOR (FLO) |
 |
FL6218 |
Frequency Locked Oscillator |
 |
FL6618 |
Multi-Band Frequency Locked Oscillator Specifications
| |
SPECIFICATION |
| PARAMETER |
FL6218 |
FL6618 |
| 1 |
FREQUENCY RANGE (GHz) |
2 to 18 |
6 to 18 |
| 2 |
ACCURACY OVER TEMPERATURE (MHz) |
±1 |
| 3 |
SETTLING TIME within 1 μsec (MHz) |
±1 |
| 4 |
RESIDUAL FM, max (kHz) |
10 |
| 5 |
MODULATION(1) |
| 6 |
RF POWER |
| 6.1 |
Output, min (dBm) |
+10 |
| 6.2 |
Variation, incl. temp. and freq., max (dB) |
±2.5 |
|
7
|
PHASW NOISE @ 100 kHz offset, max (dBc/Hz)
|
-80
|
| 8 |
HARMONICS, max (dBc) |
| 8.1 |
Integer |
-55 |
| 8.2 |
f/2, 3f/2 |
-55 |
| 9 |
SPURIOUS, max (dBc) |
-60 |
| 10 |
PULLING, VSWR 2:1, max (MHz) |
±1 |
| 11 |
PUSHING, max (KHz/V) |
±500 |
| 12 |
TUNING Control |
|
| 12.1 |
Nominal LSB (KHz) |
250 |
| 12.2 |
Tuning (bits) |
17 |
| 13 |
CONNECTORS |
| 13.1 |
Power |
15-Pin, D type |
| 13.2 |
Control |
37-Pin, D type |
| 13.3 |
RF Output, FM Input |
SMA female |
| 14 |
POWER SUPPLY REQUIREMENT max (mA):
+15V
-15V
+5V
28V, start up
28V, steady state @ 25°C
|
2,000
580
300
6,500
2,000 |
| 15 |
OPERATING TEMPERATURE (°C) |
0 to +55 |
| 16 |
MECHANICAL DIMENSIONS
Inches |
9.20 x 6.23 x 1.90 |
| Millimeters |
233.7 x 158.2 x 50.3 |
DIMENSIONS & WEIGHT
Wt. 4.63 lb. (2.1 kg) approx.
Dimensions are stated in
inches (mm). Tolerances, unless otherwise indicated: .XX ±.02; .XXX ±.008
| CONNECTOR DATA |
| SYM |
FUNCTION |
DESCRIPTION |
| J1 |
RF OUTPUT |
COAX, CONN, SMA FEMALE |
| J2 |
Digital Control |
DC-37P |
| J3 |
SUPPLY |
DA-15P |
|
J4
|
MODULATION INPUT |
SMA FEMALE
|
| CONNECTOR J2 |
| PIN No. |
FUNCTION |
NOTES |
| 1 |
A14 |
|
| 2 |
A12 |
|
| 3 |
A10 |
|
| 4 |
A8 |
|
| 5 |
A8 |
|
| 6 |
A4 |
|
| 7 |
A2 |
|
| 8 |
V0 |
|
| 9 |
Latch |
|
| 10 |
D2 |
1 |
| 11 |
GND |
|
| 12 |
D1 |
1 |
| 13 |
D0 |
1 |
| 14 |
CL |
1 |
| 15 |
FE |
1 |
| 16 |
N.C. |
|
| 17 |
N.C. |
|
| 18 |
A15 |
|
| 19 |
N.C. |
|
| 20 |
A13 |
|
| 21 |
A11 |
|
| 22 |
A9 |
|
| 23 |
A7 |
|
| 24 |
A5 |
|
| 25 |
A3 |
|
| 26 |
A1 |
|
| 27 |
A0 |
|
| 28 |
WR_RD |
1 |
| 29 |
GND |
|
| 30 |
TR_REAL |
1 |
| 31 |
FL_DTO |
1 |
| 32 |
LD_IND |
|
| 33 |
GND |
|
| 34 |
GND |
|
| 35 |
GND |
|
| 36 |
S_H_DIS |
|
| 37 |
GND |
|
|
| CONNECTOR J3 |
| PIN No. |
FUNCTION |
| 1 |
+5V |
| 2 |
-15V |
| 3 |
+5V |
| 4 |
N.U. |
| 5 |
28V |
| 6 |
28V |
| 7 |
28V |
| 8 |
28V |
| 9 |
GND |
| 10 |
GND |
| 11 |
N.U. |
| 12 |
28V Return |
| 13 |
28V Return |
| 14 |
28V Return |
| 15 |
28V Return |
|
