HMC384LP4
/
384LP4E
v02.0705
MMIC VCO w/ BUFFER
AMPLIFIER, 2.05 - 2.25 GHz
Typical Applications
Low noise MMIC VCO w/Buffer Amplifier for:
• Wireless Infrastructure
• Industrial Controls
• Test Equipment
• Military
Features
Pout: +3.5 dBm
Phase Noise: -112 dBc/Hz @100 KHz
No External Resonator Needed
Single Supply: 3V @ 35 mA
QFN Leadless SMT Package, 16 mm
2
9
VCOs & PLOs - SMT
Functional Diagram
General Description
The HMC384LP4 & HM384LP4E are GaAs InGaP
Heterojunction Bipolar Transistor (HBT) MMIC VCOs
with integrated resonators, negative resistance
devices, varactor diodes, and buffer amplifiers. The
VCO’s phase noise performance is excellent over
temperature, shock, vibration and process due to the
oscillator’s monolithic structure. Power output is 3.5
dBm typical from a 3.0V supply voltage. The voltage
controlled oscillator is packaged in a low cost leadless
QFN 4 x 4 mm surface mount package.
Electrical Specifications,
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 = +3.0V)
Tune Port Leakage Current
Output Return Loss
Harmonics
2nd
3rd
Pulling (into a 2.0:1 VSWR)
Pushing @ Vtune= +5V
Frequency Drift Rate
6
-7
-23
2.5
5
0.25
0
35
10
0.5
Min.
Typ.
2.05 - 2.25
3.5
-112
10
Max.
Units
GHz
dBm
dBc/Hz
V
mA
μA
dB
dBc
dBc
MHz pp
MHz/V
MHz/°C
9-8
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
HMC384LP4
/
384LP4E
v02.0705
MMIC VCO w/ BUFFER
AMPLIFIER, 2.05 - 2.25 GHz
Frequency vs. Tuning Voltage, T= 25°C
2.4
OUTPUT FREQUENCY (GHz)
2.3
2.2
2.1
2
1.9
1.8
0
1
2
3
4
5
6
7
8
9
10
TUNING VOLTAGE (VOLTS)
Vcc=2.75V
Vcc=3.0V
Vcc=3.25V
Frequency vs. Tuning Voltage, Vcc= +3V
2.4
OUTPUT FREQUENCY (GHz)
2.3
2.2
2.1
2
1.9
1.8
0
1
2
3
4
5
6
7
8
9
10
TUNING VOLTAGE (VOLTS)
+25 C
+85 C
-40 C
9
VCOs & PLOs - SMT
Sensitivity vs. Tuning Voltage, Vcc= +3V
160
140
SENSITIVITY (MHz/VOLT)
120
100
80
60
40
20
0
0
1
2
3
4
5
6
7
8
9
10
TUNING VOLTAGE (VOLTS)
+25 C
+85 C
-40 C
Output Power vs.
Tuning Voltage, Vcc= +3V
8
7
OUTPUT POWER (dBm)
6
5
4
3
2
1
0
-1
-2
0
1
2
3
4
5
6
7
8
9
10
TUNING VOLTAGE (VOLTS)
+25 C
+85 C
-40 C
Phase Noise vs. Tuning Voltage
-80
SSB PHASE NOISE (dBc/Hz)
-85
Typical SSB Phase Noise @ Vtune= +5V
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
3
10
SSB PHASE NOISE (dBc/Hz)
-90
-95
10 kHz offset
100 kHz offset
+25 C
+85 C
-40 C
-100
-105
-110
-115
-120
0
1
2
3
4
5
6
7
8
9
10
10
4
10
5
10
6
10
7
TUNING VOLTAGE (VOLTS)
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
9-9
HMC384LP4
/
384LP4E
v02.0705
MMIC VCO w/ BUFFER
AMPLIFIER, 2.05 - 2.25 GHz
Absolute Maximum Ratings
Vcc
Vtune
Channel Temperature
Continuous Pdiss (T = 85°C)
(derate 6.28 mW/°C above 85°C)
Storage Temperature
Operating Temperature
+3.5 Vdc
0 to +11V
135 °C
565 W
-65 to +150 °C
-40 to +85 °C
Typical Supply Current vs. Vcc
Vcc (V)
2.75
3.0
3.25
Icc (mA)
28
35
41
Note: VCO will operate over full voltage range shown above.
9
VCOs & PLOs - SMT
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
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 SOLERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED
PCB LAND PATTERN
Package Information
Part Number
HMC384LP4
HMC384LP4E
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]
H384
XXXX
H384
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
9 - 10
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
HMC384LP4
/
384LP4E
v02.0705
MMIC VCO w/ BUFFER
AMPLIFIER, 2.05 - 2.25 GHz
Pin Descriptions
Pin Number
1- 14, 17 - 19,
21, 23, 24
Function
N/C
Description
No Connection
Interface Schematic
15
GND
This pin must be connected to RF & DC ground.
16
RFOUT
RF output (AC coupled)
9
20
Vcc
Supply Voltage Vcc= 3V
22
VTUNE
Control Voltage Input. Modulation port bandwidth
dependent on drive source impedance.
GND
Package bottom has an exposed metal paddle that
must be RF & DC grounded.
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
9 - 11
VCOs & PLOs - SMT
HMC384LP4
/
384LP4E
v02.0705
MMIC VCO w/ BUFFER
AMPLIFIER, 2.05 - 2.25 GHz
Evaluation PCB
9
VCOs & PLOs - SMT
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.
HMC384LP4 / HMC384LP4E VCO
105667 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
The circuit board used in the final 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 sufficient number
of via holes should be used to connect the top
and bottom ground planes. The evaluation cir-
cuit board shown is available from Hittite upon
request.
9 - 12
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
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