Multi-Band Microwave Oscillators

Application Notes for Microwave Oscillators

Simulator and Other Test Systems Applications
To obtain broadband frequency coverage, as well as to improve settling speed, two or more VCOs are combined, as shown in Fig. 1. A high-isolation RF switch is required to suppress all but the desired VCO. A switched lowpass filter is included in the output to reduce harmonic levels. The harmonic level for catalog units is specified at -20 dBc. However, -55 dBc suppression is available as an option.
Kratos General Microwave offers multi-band DTOs covering the 0.5-2, 2-6, 6-18 and 2-18 GHz frequency ranges. The units feature high speed, high accuracy and low phase noise. The specifications are summarized on page 190. The modular design of the DTOs enables the user to select narrower frequency coverage if desired. Please consult the factory for individual requirements.
For military applications, these DTOs require option G09 to comply with Military Standards. The specific environmental MIL STD requirements as well as the EMI/RFI specifications should be provided by the customer.
Model D6618 VCO Assembly

Multi-band DTO block diagram — Fig. 1–Multi-Band DTO Block Diagram

MULTI-BAND DTO SPECIFICATIONS

	MODEL
PARAMETER	D6052	D6206	D6618	D6218
FREQUENCY RANGE (GHz)	0.5-2	2-6	6-18	2-18
ACCURACY @ +25°C, max (MHz)	±2
FREQUENCY DRIFT, max (MHz/°C)	±0.1
FREQUENCY SETTLING⁽¹⁾, (MHz) within 1 μsec	±2		±3 (6-12 GHz) ±4 (12-18 GHz)	±2 (2-6 GHz) ±3 (6-12 GHz) ±4 (12-18 GHz)
MODULATION⁽²⁾ Bandwidth, min (MHz)	DC to 10
Sensitivity variation Standard unit, typ	4:1
Option 2 unit, max	1.1:1
Frequency deviation bandwidth, min @ 2v P-P (MHz)	100	500
RF POWER output, min (dBm)	+10
Variation, incl. temp. & freq. max (dB)	±2		±2.5
PHASE NOISE, typ (dBc/Hz) @ 100 kHz offset	-65
RESIDUAL FM, P-P @ -3 dBc, typ (kHz)	50	75	150
HARMONICS, max (dBc) Standard Unit	-20
Option 3 Unit	N/A	-55	-55
f/2, 3f/2, max (dBc)	N/A		-55
SPURIOUS, max (dBc)	-60
PULLING VWSR 2:1 max (MHz)	±1
PUSHING, max (kHz/V)	±125	±250	±500
NOMINAL LSB⁽³⁾ (MHz)	0.5
MONOTONICTY	Guaranteed
CONNECTORS POWER
Power	9 pin, D type male⁴
Control	37 pin, D type male⁴
RF output	SMA female
Modulation Input	SMC male
POWER SUPPLY REQEUIRMENT (mA)
+15V ±0.5V	450	700	1,000	1,250
-15V ±0.5V	250	250	300	300
+5V ±0.5V	150	150	500	500
+28V ±2V	1,000	1,000	3,000	3,000
Turn-On Current @ 28 volts	3 amps max		6 amps max
ENVIRONMENTAL Operating temperature (°C)	0 to +70
Storage temperature (°C)	-20 to +100
MECHANICAL DIMENSIONS Inches	5.70 x 4.80 x 2.50	6.48 x 6.23 x 2.00
Millimeters	144,8 x 121,9 x 63,5	164,6 x 158,2 x 50,8

(1) Δf relative to f after 1 sec
(2) 50 Ohm input impedance
(3) 16 Bit TTL input, including VCO control. See pages 191 and 192.
(4) Mating connector furnished

AVAILABLE OPTIONS

Option No.

Description

Reduced Modulation Sensitivity Variation

Improved Harmonic Suppression

SMA Female Modulation Connector

B09

13 to 20 GHz Operation

B11

Operating Temp. range -5 (°C) to +70 (°C)

B12

With options 2 & 3. Operating Temp. range -10 (°C) to +70 (°C)

DIMENSIONS AND WEIGHTS – Model D6052

Multi-band DTO dimensions and weights for Model D6052

PIN NO.	FUNCTION	PIN NO.	FUNCTION
MODELS D6052 Power Connector (J3)
1	+5V	6	Return for: +5V, +15V, -15V
2	-15V	7	Return for: +5V, +15V, -15V
3	+15V	8	+28V (return)
4	+28V (return	9	+28V
5	+28V

NOTES: For Normal Operation of the DTO
1) PIN nos. 9, 10 and 28 should be connected together.
2) PIN no. 11 should be grounded
3) PIN nos. 12, 13, 14, 15, 16, 17, 19, 30, 31, 32, 33, 34, 35 and 36 are for FACTORY PROGRAMMING ONLY and should not be connected.

MODELS D6052 Control Connector (J4)
PIN NO.	FUNCTION
1	A13 Tuning Word (MSB)
2	A11 Tuning Word
3	A9 Tuning Word
4	A7 Tuning Word
5	A5 Tuning Word
6	A3 Tuning Word
7	A1 Tuning Word
8	V1 VCO Control (MSB)
9	L1 Latch 1 (Strobe)
10	L3 Latch 3
11	OE Memory Output Enable
12	D1 Data Bus
13	D3 Data Bus
14	D5 Data Bus
15	D7 Data Bus
16	W2 Write 2
17	OET2 Output Enable Transceiver 2
18	G Ground
19	WE Write Enable
20	A12 Tuning Word
21	A10 Tuning Word
22	A8 Tuning Word
23	A6 Tuning Word
24	A4 Tuning Word
25	A2 Tuning Word
26	A0 Tuning Word
27	V0 VCO Control (LSB)
28	L2 Latch 2
29	G Ground
30	D0 Data Bus
31	D2 Data Bus
32	D4 Data Bus
33	D6 Data Bus
34	W1 Write 1
35	OET1 Output Enable Transceiver 1
36	OET3 Output Enable Transceiver 3
37	G Ground

Wt. 2.18 lb. (990 grams) approx.

DIMENSIONS AND WEIGHT – MODELS D6206, D6218 and D6618

Dimensions and weights for DTO Models D6206, D6218, D6618

PIN NO.	FUNCTION	PIN NO.	FUNCTION
MODELS D6026, D6618 and D6218 Power Connector (J3)
1	+5V	6	Return (for +5V, +15V, -15V)
2	-15V	7	Return (for +5V, +15V, -15V)
3	+15V	8	+28V (return)
4	+28V (return	9	+28V
5	+28V

NOTES: For Normal Operation of the DTO
1) PIN nos. 9, 10 and 28 should be connected together (Latch enable).
2) PIN no. 11 should be grounded
3) PIN nos. 12, 13, 14, 15, 16, 17, 19, 30, 31, 32, 33, 34, 35 and 36 are for FACTORY PROGRAMMING ONLY and should not be connected.

MODELS D6206, D6618 and D6218 Control Connector (J2)
PIN NO.	FUNCTION
1	A14 Tuning Word (MSB)
2	A12 Tuning Word
3	A10 Tuning Word
4	A8 Tuning Word
5	A6 Tuning Word
6	A4 Tuning Word
7	A2 Tuning Word
8	V0 VCO Control Bit
9	L1 Latch 1 of 3 (Strobe)
10	L3 Latch 3 of 3 (Strobe)
11	OE Memory Output Enable
12	D1 Data Bus
13	D3 Data Bus
14	D5 Data Bus
15	D7 Data Bus
16	W2 Write select 2
17	OET2 Output Enable Transceiver 2
18	GND Ground
19	WE Write Enable
20	A13 Tuning Word
21	A11 Tuning Word
22	A9 Tuning Word
23	A7 Tuning Word
24	A5 Tuning Word
25	A3 Tuning Word
26	A1 Tuning Word
27	A0 Tuning Word (LSB)
28	L2 Latch 2 of 3 (Strobe)
29	G Ground
30	D0 Data Bus
31	D2 Data Bus
32	D4 Data Bus
33	D6 Data Bus
34	W1 Write select 1
35	OET1 Output Enable Transceiver 1
36	OET3 Output Enable Transceiver 3
37	GND Ground

Wt. 3.35 lb. (1.52 kg) approx.

Dimensions are stated in inches (mm). Tolerances, unless otherwise indicated: .XX ±.02; .XXX ±.008

Microwave Oscillators: Multi-Band DTO: Series D60

MULTI-BAND DTO SPECIFICATIONS

DIMENSIONS AND WEIGHT – MODELS D6206, D6218 and D6618

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