15
V
C
Os - SM
T
15 - 172
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
WIDEBAND MMIC VCO w/ BUFFER
AMPLIFIER, 8.0 - 12.5 GHz
v00.1105
General Description
Features
Functional Diagram
The HMC588LC4B is a wideband GaAs InGaP HBT
MMIC Voltage Controlled Oscillator which incor-
porates the resonator, negative resistance device,
and varactor diode. Output power and phase noise
performance are excellent over temperature due to
the oscillator's monolithic construction. The Vtune port
accepts an analog tuning voltage from 0 to +13V, and
accommodates a very fast 65 MHz tuning bandwidth.
The HMC588LC4B VCO operates from a single +5V
supply, consumes only 55 mA of current, and is housed
in a RoHS compliant SMT package. This wideband
VCO uniquely combines the attributes of ultra small
size, low phase noise, low power consumption, and
wide tuning range.
Pout: +5 dBm
Low SSB Phase Noise: -93 dBc/Hz @100 kHz
No External Resonator Needed
Single Positive Supply: +5V @ 55 mA
Fast Modulation Bandwidth: 65 MHz
RoHS Compliant 4 x 4 mm SMT Package
Typical Applications
This wideband MMIC VCO is ideal for:
Industrial/Medical Equipment
Test & Measurement Equipment
Military Radar, EW & ECM
Electrical Specifications,
T
A
= +25 C, Vcc = +5V
Parameter
Min.
Typ.
Max.
Units
Frequency Range
8.0 - 12.5
GHz
Power Output
2
5
dBm
SSB Phase Noise @ 100 kHz Offset
-93
dBc/Hz
SSB Phase Noise @ 10 kHz Offset
-65
dBc/Hz
Tune Voltage (Vtune)
0
13
V
Supply Current (Icc) (Vcc = +5.0V)
40
75
mA
Tune Port Leakage Current @ +13V
10
A
Output Return Loss
7
dB
2nd Harmonic
-18
dBc
Mod Port Bandwidth (Vtune)
65
MHz
Pulling (into a 2.0:1 VSWR)
4
MHz pp
Pushing @ Vtune= +5V
100
MHz/V
Frequency Drift Rate
0.3
MHz/C
HMC588LC4B
15
V
C
Os - SM
T
15 - 173
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Frequency vs. Tuning Voltage, Vcc = +5V
Sensitivity vs. Tuning Voltage, Vcc= +5V
Typical SSB Phase Noise @ Vtune= +5V
SSB Phase Noise vs. Tuning Voltage
Output Power vs.
Tuning Voltage, Vcc= +5V
HMC588LC4B
v00.1105
7
8
9
10
11
12
13
14
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
+25 C
+85 C
-40 C
OUTPUT FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
+25 C
+85 C
-40 C
OUTPUT POWER (dBm)
TUNING VOLTAGE (VOLTS)
0
100
200
300
400
500
600
700
800
900
1000
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
+25 C
+85 C
-40 C
SENSITIVITY (MHz/VOLT)
TUNING VOLTAGE (VOLTS)
Frequency vs. Tuning Voltage, T = +25 C
7
8
9
10
11
12
13
14
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
4.75 V
5.00 V
5.25 V
OUTPUT FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
10 kHz
100 kHz
SSB PHASE NOISE (dBc/Hz)
TUNING VOLTAGE (VOLTS)
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
10
2
10
3
10
4
10
5
10
6
SSB PHASE NOISE (dBc/Hz)
OFFSET FREQUENCY (Hz)
WIDEBAND MMIC VCO w/ BUFFER
AMPLIFIER, 8.0 - 12.5 GHz
15
V
C
Os - SM
T
15 - 174
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Absolute Maximum Ratings
Outline Drawing
Vcc
+5.5 Vdc
Vtune
0 to +15V
Junction Temperature
135 C
Continuous Pdiss (T = 85C)
(derate 10.5 mW/C above 85C)
526 mW
Thermal Resistance
(junction to ground paddle)
95 C/W
Storage Temperature
-65 to +150 C
Operating Temperature
-40 to +85 C
ESD Sensitivity (HBM)
Class 1A
NOTES:
1. PACKAGE BODY MATERIAL: ALUMINA
2. LEAD AND GROUND PADDLE PLATING: GOLD FLASH OVER Ni.
3. DIMENSIONS ARE IN INCHES [MILLIMETERS].
4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm DATUM -C-
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
HMC588LC4B
v00.1105
WIDEBAND MMIC VCO w/ BUFFER
AMPLIFIER, 8.0 - 12.5 GHz
15
V
C
Os - SM
T
15 - 175
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Pin Number
Function
Description
Interface Schematic
1 - 3, 5 - 11,
13, 17 - 24
N/C
No Connection. These pins may be connected to RF/DC
ground. Performance will not be affected.
4
Vtune
Control Voltage and Modulation Input.
Modulation bandwidth dependent on
drive source impedance.
12
Vcc
Supply Voltage Vcc= +5V
14, 16
GND
Package bottom has an exposed metal paddle that
must also be RF & DC grounded.
15
RFOUT
RF output (AC coupled)
Pin Descriptions
HMC588LC4B
v00.1105
WIDEBAND MMIC VCO w/ BUFFER
AMPLIFIER, 8.0 - 12.5 GHz
15
V
C
Os - SM
T
15 - 176
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
The circuit board used in the fi nal application should
use RF circuit design techniques. Signal lines should
have 50 ohm impedance while the package ground
leads and exposed paddle should be connected
directly to the ground plane similar to that shown.
A suffi cient number of via holes should be used to
connect the top and bottom ground planes. The
evaluation circuit board shown is available from
Hittite upon request.
Evaluation PCB
List of Materials for Evaluation PCB 108648
[1]
Item
Description
J1
PCB Mount SMA RF Connector, Johnson
J2
PCB Mount SMA Connector, SRI
J3
DC Header
C1
1000 pF Capacitor, 0402 Pkg.
C2
4.7 F Capacitor, Tantalum
U1
HMC588LC4B VCO
PCB
[2]
108646 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC588LC4B
v00.1105
WIDEBAND MMIC VCO w/ BUFFER
AMPLIFIER, 8.0 - 12.5 GHz
15
V
C
Os - SM
T
15 - 177
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Notes:
HMC588LC4B
v00.1105
WIDEBAND MMIC VCO w/ BUFFER
AMPLIFIER, 8.0 - 12.5 GHz
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