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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
HMC736LP4 / 736LP4E
MMIC VCO w/ HALF FREQUENCY OUTPUT
14.5 - 15.0 GHz
v01.0209
General Description
Features
Functional Diagram
The HMC736LP4(E) is a GaAs InGaP Heterojunction
Bipolar Transistor (HBT) MMIC VCO. The
HMC736LP4(E) integrates a resonator, negative
resistance device, varactor diode and feature half
frequency output. The VCO’s phase noise performance
is excellent over temperature, shock, and process due
to the oscillator’s monolithic structure. Power output
is +9 dBm typical from a +4.2V supply voltage. The
voltage controlled oscillator is packaged in a leadless
QFN 4x4 mm surface mount package, and requires no
external matching components.
Dual Output: Fo = 14.5 - 15.0 GHz
Fo/2 = 7.25 - 7.5 GHz
Pout: +9 dBm
Phase Noise: -105 dBc/Hz @ 100 kHz
No External Resonator Needed
24 Lead 4x4mm SMT Package: 16mm2
Typical Applications
The HMC736LP4(E) is ideal for:
• Point to Point/Multipoint Radio
• Test Equipment & Industrial Controls
• SATCOM
• Military End-Use
Electrical Specications, TA = +25° C, Vcc = +4.2V
Parameter Min. Typ. Max. Units
Frequency Range Fo
Fo/2
14.5 - 15.0
7.25 - 7.5
GHz
GHz
Power Output RFOUT
RFOUT/2
6
-8
9
-3
13
2
dBm
dBm
SSB Phase Noise @ 100 kHz Offset,
Vtune= +5V @ RFOUT -105 dBc/Hz
Tune Voltage Vtune 1 13 V
Supply Current 120 150 180 mA
Tune Port Leakage Current (Vtune= 13V) 10 µA
Output Return Loss 2.5 dB
Harmonics/Subharmonics 1/2
3/2
-45
-42
dBc
dBc
Pulling (into a 2.0:1 VSWR) 12 MHz pp
Pushing @ Vtune= 5V 24 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 = +4.2V
Sensitivity vs. Tuning Voltage, Vcc = +4.2V
SSB Phase Noise vs. Tuning Voltage
Frequency vs. Tuning Voltage, T= 25°C
Output Power
vs. Tuning Voltage, Vcc = +4.2V
SSB Phase Noise @ Vtune = +5V
HMC736LP4 / 736LP4E
v01.0209
MMIC VCO w/ HALF FREQUENCY OUTPUT
14.5 - 15.0 GHz
12
13
14
15
16
17
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25 C
+85 C
-40 C
FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
0
100
200
300
400
500
600
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25 C
+85 C
-40 C
SENSITIVITY (MHz/VOLT)
TUNING VOLTAGE (VOLTS)
4
6
8
10
12
14
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25 C
+85 C
-40 C
OUTPUT POWER (dBm)
TUNING VOLTAGE (VOLTS)
12
13
14
15
16
17
0 1 2 3 4 5 6 7 8 9 10 11 12 13
Vcc = 4.0V
Vcc = 4.2V
Vcc = 4.4V
FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
-120
-110
-100
-90
-80
-70
-60
0 1 2 3 4 5 6 7 8 9 10 11 12 13
10kHz offset
100kHz offset
SSB PHASE NOISE(dBc/Hz)
TUNING VOLTAGE (VOLTS)
-150
-130
-110
-90
-70
-50
-30
103104105106107
+25 C
+85 C
-40 C
SSB PHASE NOISE (dBc/Hz)
OFFSET FREQUENCY (Hz)
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
Vcc +5.5V
Vtune 0 to 15V
Junction Temperature 135 °C
Continuous Pdiss (T=85 °C)
(derate 19.6 mW/C above 85 °C 1 W
Thermal Resistance
(junction to ground paddle) 51 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
Typical Supply Current vs. Vcc
Note: VCO will operate over full voltage range shown above.
Vcc (V) Icc (mA)
4.0 140
4.2 150
4.4 160
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC736LP4 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H736
XXXX
HMC736LP4E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H736
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
RFOUT/2 Frequency
vs. Tuning Voltage, Vcc = +4.2V
RFOUT/2 Output Power
vs. Tuning Voltage, Vcc = +4.2V
HMC736LP4 / 736LP4E
v01.0209
MMIC VCO w/ HALF FREQUENCY OUTPUT
14.5 - 15.0 GHz
6
6.5
7
7.5
8
8.5
9
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25 C
+85 C
-40 C
FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
-6
-5
-4
-3
-2
-1
0
0 1 2 3 4 5 6 7 8 9 10 11 12 13
+25 C
+85 C
-40 C
OUTPUT POWER (dBm)
TUNING VOLTAGE (VOLTS)
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.
HMC736LP4 / 736LP4E
v01.0209
MMIC VCO w/ HALF FREQUENCY OUTPUT
14.5 - 15.0 GHz
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 - 5
HMC736LP4 / 736LP4E
v01.0209
MMIC VCO w/ HALF FREQUENCY OUTPUT
14.5 - 15.0 GHz
Pin Descriptions
Pin Number Function Description Interface Schematic
1 - 9, 11 - 14, 18,
19, 21, 23, 24 N/C No Connection. These pins may be connected to RF/
DC ground. Performance will not be affected.
10 RFOUT/2 Half frequency output (AC coupled).
Requires external AC coupling capacitor.
16 RFOUT RF output (AC coupled).
20 Vcc Supply Voltage, +4.2V
22 VTUNE
Control voltage and modulation input. Modulation
bandwidth dependent on drive source impedance.
See “Determining the FM Bandwidth of a Wideband
Varactor Tuned VCO” application note.
15, 17,
Paddle GND Package bottom has an exposed metal paddle that
must be connected to RF/DC ground.
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 connected 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 avail-
able from Hittite upon request.
Evaluation PCB
List of Materials for Evaluation PCB 123987 [1]
Item Description
J1 - J3 PCB Mount SMA RF Connector
J4 2 mm DC Header
C1, C2 100 pF Capacitor, 0402 Pkg.
C3 4.7 µF Tantalum Capacitor
U1 HMC736LP4(E) VCO
PCB [2] 124532 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Arlon 25FR or Rogers 4350
HMC736LP4 / 736LP4E
v01.0209
MMIC VCO w/ HALF FREQUENCY OUTPUT
14.5 - 15.0 GHz
