HMC386LP4
/
386LP4E
v04.1209
MMIC VCO w/ BUFFER
AMPLIFIER, 2.6 - 2.8 GHz
Typical Applications
Low noise MMIC VCO w/Buffer Amplifier for:
• Wireless Infrastructure
• Industrial Controls
• Test Equipment
• Military
Features
Pout: +5 dBm
Phase Noise: -114 dBc/Hz @100 kHz
No External Resonator Needed
Single Supply: 3V @ 35mA
24 Lead 4x4mm QFN Package: 16 mm
2
Functional Diagram
General Description
The HMC386LP4 & HMC386LP4E are GaAs InGaP
Heterojunction Bipolar Transistor (HBT) MMIC VCOs
with integrated resonators, negative resistance
devices, varactor diodes, and buffer amplifiers.
Covering 2.6 to 2.8 GHz, the VCO’s phase noise
performance is excellent over temperature, shock,
vibration and process due to the oscillator’s mono-
lithic structure. Power output is 5 dBm typical from a
single supply of 3V @ 35mA. The voltage controlled
oscillator is packaged in a low cost leadless QFN 4x4
mm surface mount package.
12
VCOS - SMT
Electrical Specifi cations,
T
A
= +25 °C, Vcc = +3V
Parameter
Frequency Range
Power Output
SSB Phase Noise @ 100 kHz Offset, Vtune = +5V @ RF Output
Tune Voltage (Vtune)
Supply Current (Icc) (Vcc = +3V)
Tune Port Leakage Current
Output Return Loss
Harmonics
2nd
3rd
Pulling (into a 2.0:1 VSWR)
Pushing @ Vtune = +5V
Frequency Drift Rate
9
-5
-15
3
2
0.3
0
35
10
2
Min.
Typ.
2.6 - 2.8
5
-114
10
Max.
Units
GHz
dBm
dBc/Hz
V
mA
μA
dB
dBc
dBc
MHz pp
MHz/V
MHz/°C
12 - 14
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
HMC386LP4 / 386LP4E
v04.1209
MMIC VCO w/ BUFFER
AMPLIFIER, 2.6 - 2.8 GHz
Frequency vs. Tuning Voltage, T = 25°C
3.0
Frequency vs. Tuning Voltage, Vcc = +3V
3.0
OUTPUT FREQUENCY (GHz)
2.8
2.7
2.6
2.5
2.4
2.3
2.2
0
1
2
3
4
5
6
7
8
9
10
2.75V
3.00V
3.25V
OUTPUT FREQUENCY (GHz)
2.9
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
0
1
2
3
4
5
6
7
8
9
10
+25C
+85C
-40C
TUNING VOLTAGE (V)
TUNING VOLTAGE (V)
Sensitivity vs. Tuning Voltage, Vcc = +3V
200
180
Output Power vs.
Tuning Voltage, Vcc = +3V
10
9
12
VCOS - SMT
6
SENSITIVITY (MHz/VOLT)
OUTPUT POWER (dBm)
160
140
120
100
80
60
40
20
0
0
1
2
3
4
5
6
7
8
9
10
+25C
+85C
-40C
8
7
6
5
4
3
2
1
0
0
1
2
3
4
5
6
7
8
9
10
+25C
+85C
-40C
TUNING VOLTAGE (V)
TUNING VOLTAGE (V)
Phase Noise vs. Tuning Voltage
-80
Typical SSB Phase Noise @ Vtune= +5V
0
SSB PHASE NOISE (dBc/Hz)
SSB PHASE NOISE (dBc/Hz)
-85
-90
-95
-100
-105
-110
-115
-120
-125
0
1
2
3
4
5
6
7
8
9
10
10kHz offset
100kHz offset
-25
+25C
+85C
-40C
-50
-75
-100
-125
-150
10
3
10
4
10
5
10
TUNING VOLTAGE (V)
OFFSET FREQUENCY (Hz)
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
12 - 15
HMC386LP4 / 386LP4E
v04.1209
MMIC VCO w/ BUFFER
AMPLIFIER, 2.6 - 2.8 GHz
Absolute Maximum Ratings
Vcc
Vtune
Channel Temperature
Thermal Resistance (R
TH
)
(junction to package base)
Storage Temperature
Operating Temperature
+3.5V
0 to +11V
135 °C
138 °C/W
-65 to +150 °C
-40 to +85 °C
Typical Supply Current vs. Vcc
Vcc (V)
2.75
3.0
3.25
Icc (mA)
30
35
40
Note: VCO will operate over full voltage range shown above.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Outline Drawing
12
VCOS - SMT
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 NOT FOR SUGGESTED
LAND PATTERN.
Package Information
Part Number
HMC386LP4
HMC386LP4E
Package Body Material
Low Stress Injection Molded Plastic
RoHS-compliant Low Stress Injection Molded Plastic
Lead Finish
Sn/Pb Solder
100% matte Sn
MSL Rating
MSL1
MSL1
[1]
Package Marking
[3]
H386
XXXX
H386
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
12 - 16
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
HMC386LP4 / 386LP4E
v04.1209
MMIC VCO w/ BUFFER
AMPLIFIER, 2.6 - 2.8 GHz
Pin Descriptions
Pin Number
1- 14, 17 - 19,
21, 23, 24
Function
N/C
Description
The pins are not connected internally; however, all data shown
herein was measured with these pins connected to RF/DC ground
externally.
This pin must be connected to RF & DC ground. Package bottom
has an exposed metal paddle that must be RF & DC grounded.
RF output (AC coupled)
Interface Schematic
15
GND
16
RFOUT
20
Vcc
Supply Voltage Vcc= 3V
22
VTUNE
Control Voltage Input. Modulation port bandwidth
dependent on drive source impedance.
12
VCOS - SMT
Evaluation PCB
List of Materials for Evaluation PCB 105706
[1]
Item
J1 - J2
J3 - J4
C1
C2
U1
PCB
[2]
Description
PCB Mount SMA RF Connector
DC Pin
4.7 μF Tantalum Capacitor
10,000 pF Capacitor, 0603 Pkg.
HMC386LP4 / HMC386LP4E VCO
105667 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350 or Arlon 25FR
The circuit board used in the application should
use RF circuit design techniques. Signal lines
should have 50 Ohm impedance while the pack-
age ground leads and exposed 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.
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
12 - 17
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