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For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
VCOS with Fo/2 OUTPUT - SMT
8
8 - 1
HMC531LP5 / 531LP5E
MMIC VCO w/ HALF FREQUENCY OUTPUT
& DIVIDE-BY-4, 13.6 - 14.9 GHz
v04.0811
General Description
Features
Functional Diagram
The HMC531LP5 & HMC531LP5E are GaAs InGaP
Heterojunction Bipolar Transistor (HBT) MMIC VCOs.
The HMC531LP5 & HMC531LP5E integrate resona-
tors, negative resistance devices, varactor diodes
and feature half frequency and divide-by-4 outputs.
The VCO’s phase noise performance is excellent over
temperature, shock, and process due to the oscillator’s
monolithic structure. Power output is +7 dBm typical
from a +5V supply voltage. The prescaler function can
be disabled to conserve current if not required. The
voltage controlled oscillator is packaged in a leadless
QFN 5x5 mm surface mount package, and requires no
external matching components.
Dual Output: Fo = 13.6 - 14.9 GHz
Fo/2 = 6.8 - 7.45 GHz
Pout: +7 dBm
Phase Noise: -110 dBc/Hz @100 kHz Typ.
No External Resonator Needed
32 Lead 5x5mm SMT Package: 25mm²
Typical Applications
Low noise MMIC VCO w/Half Frequency, Divide-by-4
Outputs for:
• VSAT Radio
• Point to Point/Multipoint Radio
• Test Equipment & Industrial Controls
• Military End-Use
Electrical Specications, TA = +25° C, Vcc1, Vcc2 = +5V
Parameter Min. Typ. Max. Units
Frequency Range Fo
Fo/2
13.6 - 14.9
6.8 - 7.45
GHz
GHz
Power Output
RFOUT
RFOUT/2
RFOUT/4
+3
+8
-9
+10
+14
-3
dBm
dBm
dBm
SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RFOUT -110 dBc/Hz
Tune Voltage Vtune 2 13 V
Supply Current Icc1 & Icc2 220 260 300 mA
Tune Port Leakage Current (Vtune= 13V) 10 µA
Output Return Loss 8 dB
Harmonics/Subharmonics 1/2
3/2
2nd
3rd
25
35
18
40
dBc
dBc
dBc
dBc
Pulling (into a 2.0:1 VSWR) 5 MHz pp
Pushing @ Vtune= 5V 6 MHz/V
Frequency Drift Rate 1.2 MHz/°C
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
VCOS with Fo/2 OUTPUT - SMT
8
8 - 2
Frequency vs. Tuning Voltage, Vcc = +5V
Sensitivity vs. Tuning Voltage, Vcc= +5V
SSB Phase Noise vs. Tuning Voltage
Frequency vs. Tuning Voltage, T= 25°C
Output Power
vs. Tuning Voltage, Vcc= +5V
SSB Phase Noise @ Vtune= +5V
11.6
12.1
12.6
13.1
13.6
14.1
14.6
15.1
15.6
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25C
+85C
-40C
OUTPUT FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
0
100
200
300
400
500
600
700
800
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25C
+85C
-40C
SENSITIVITY (MHz/Volt)
TUNING VOLTAGE (VOLTS)
11.6
12.1
12.6
13.1
13.6
14.1
14.6
15.1
15.6
0 1 2 3 4 5 6 7 8 9 10 11 12 13
Vcc= 4.75V
Vcc= 5.00V
Vcc= 5.25V
OUTPUT FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
0
2
4
6
8
10
12
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25C
+85C
-40C
OUTPUT POWER (dBm)
TUNING VOLTAGE (VOLTS)
-120
-110
-100
-90
-80
-70
1 2 3 4 5 6 7 8 9 10 11 12 13
10 kHz Offset
100 kHz Offset
SSB PHASE NOISE (dBc/Hz)
TUNING VOLTAGE (VOLTS)
-160
-140
-120
-100
-80
-60
-40
-20
0
103104105106107
+25C
+85C
-40C
SSB PHASE NOISE (dBc/Hz)
FREQUENCY OFFSET (Hz)
HMC531LP5 / 531LP5E
v04.0811
MMIC VCO w/ HALF FREQUENCY OUTPUT
& DIVIDE-BY-4, 13.6 - 14.9 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
VCOS with Fo/2 OUTPUT - SMT
8
8 - 3
Absolute Maximum Ratings
Vcc1, Vcc2 +5.5 Vdc
Vtune 0 to +15V
Junction Temperature 135 °C
Continuous Pdiss (T=85 °C)
(derate 37 mW/C above 85 °C 1.85 W
Thermal Resistance
(junction to ground paddle) 27 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A
Typical Supply Current vs. Vcc
Note: VCO will operate over full voltage range shown above.
Vcc (V) Icc (mA)
4.75 235
5.00 260
5.25 275
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
RFOUT/2 Frequency
vs. Tuning Voltage, Vcc= +5V
RFOUT/2 Output Power
vs. Tuning Voltage, Vcc= +5V
Divide-by-4 Frequency
vs. Tuning Voltage, Vcc= +5V
Divide-by-4 Output Power
vs. Tuning Voltage, Vcc= +5V
5.8
6
6.2
6.4
6.6
6.8
7
7.2
7.4
7.6
7.8
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25C
+85C
-40C
OUTPUT FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25C
+85C
-40C
OUTPUT POWER (dBm)
TUNING VOLTAGE (VOLTS)
2.9
3
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
3.9
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25C
+85C
-40C
OUTPUT FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
5
6
7
8
9
10
11
12
13
14
15
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25C
+85C
-40C
OUTPUT POWER (dBm)
TUNING VOLTAGE (VOLTS)
HMC531LP5 / 531LP5E
v04.0811
MMIC VCO w/ HALF FREQUENCY OUTPUT
& DIVIDE-BY-4, 13.6 - 14.9 GHz
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
VCOS with Fo/2 OUTPUT - SMT
8
8 - 4
Outline Drawing
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE.
4. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE
SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED LAND PATTERN.
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC531LP5 Low Stress Injection Molded Plastic Sn/Pb Solder MSL3 [1] H531
XXXX
HMC531LP5E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL3 [2] H531
XXXX
[1] Max peak reow temperature of 235 °C
[2] Max peak reow temperature of 260 °C
[3] 4-Digit lot number XXXX
Package Information
HMC531LP5 / 531LP5E
v04.0811
MMIC VCO w/ HALF FREQUENCY OUTPUT
& DIVIDE-BY-4, 13.6 - 14.9 GHz
Pin Descriptions
Pin Number Function Description Interface Schematic
1 - 3, 7 - 10, 13 - 18,
20, 22 - 28, 30 - 32 N/C No Connection. These pins may be connected to RF/
DC ground. Performance will not be affected.
4 RFOUT/4 Divide-by-4 Output.
6 Vcc1
Supply Voltage for prescaler. If prescaler is not
required, this pin may be left open to conserve
65 mA of current.
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
VCOS with Fo/2 OUTPUT - SMT
8
8 - 5
HMC531LP5 / 531LP5E
v04.0811
MMIC VCO w/ HALF FREQUENCY OUTPUT
& DIVIDE-BY-4, 13.6 - 14.9 GHz
Pin Descriptions
Pin Number Function Description Interface Schematic
12 RFOUT/2 Half frequency output (AC coupled).
19 RF OUT RF output (AC coupled).
21 Vcc2 Supply Voltage, +5V
29 VTUNE
Control Voltage and Modulation Input. Modulation
bandwidth dependent on drive source impedance. See
“Determining the FM Bandwidth of a Wideband Varac-
tor Tuned VCO” application note.
5, 11 Paddle GND Package bottom has an exposed metal paddle that
must be connected to RF/DC ground.
Typical Application Circuit
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com
VCOS with Fo/2 OUTPUT - SMT
8
8 - 6
The circuit board used in the application should use
RF circuit design techniques. Signal lines should
have 50 Ohm impedance while the package ground
leads and backside ground paddle should be con-
nected directly to the ground plane similar to that
shown. A sufficient 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 110227 [1]
HMC531LP5 / 531LP5E
v04.0811
MMIC VCO w/ HALF FREQUENCY OUTPUT
& DIVIDE-BY-4, 13.6 - 14.9 GHz
Item Description
J1 - J4 PCB Mount SMA RF Connector
J5 - J6 2 mm DC Header
C1 - C3 100 pF Capacitor, 0402 Pkg.
C4 1,000 pF Capacitor, 0402 Pkg.
C5 - C7 2.2 µF Tantalum Capacitor
U1 HMC531LP5(E) VCO
PCB [2] 110225 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Arlon 25FR
