HMC389LP4
v01.0604
MICROWAVE CORPORATION
MMIC VCO w/ BUFFER
AMPLIFIER, 3.35 - 3.55 GHz
Typical Applications
Features
Low noise MMIC VCO w/Buffer Amplifier for:
Pout: +4.7 dBm
• Wireless Local Loop (WLL)
Phase Noise: -112 dBc/Hz @100 KHz
• VSAT & Microwave Radio
No External Resonator Needed
• Test Equipment & Industrial Controls
Single Supply: 3V @ 41 mA
• Military
QFN Leadless SMT Package, 16 mm2
Functional Diagram
General Description
The HMC389LP4 is a GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCO with
integrated resonator, negative resistance device,
varactor diode, and buffer amplifier. Covering 3.35
to 3.55 GHz, the VCO’s phase noise performance
is excellent over temperature, shock, vibration
and process due to the oscillator’s monolithic
structure. Power output is 4.7 dBm typical from
a single supply of 3V @ 41mA. The voltage controlled oscillator is packaged in a low cost leadless QFN 4 x 4 mm surface mount package.
VCOs - SMT
15
Electrical Specifications, TA = +25° C, Vcc = +3V
Parameter
Min.
Frequency Range
Power Output
1.5
SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output
Tune Voltage (Vtune)
Supply Current (Icc) (Vcc = +3.0V)
Typ.
Units
3.35 - 3.55
GHz
4.7
dBm
-112
dBc/Hz
0
10
41
Tune Port Leakage Current
15 - 32
Max.
V
mA
10
µA
Output Return Loss
6
dB
Harmonics
2nd
3rd
-7
16
dBc
dBc
Pulling (into a 2.0:1 VSWR)
3.3
MHz pp
Pushing @ Vtune= +5V
-3
MHz/V
Frequency Drift Rate
0.4
MHz/°C
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
HMC389LP4
v01.0604
MICROWAVE CORPORATION
MMIC VCO w/ BUFFER
AMPLIFIER, 3.35 - 3.55 GHz
3.8
3.8
3.7
3.7
OUTPUT FREQUENCY (GHz)
3.6
3.5
3.4
3.3
3.2
Vcc=2.75V
Vcc=3.0V
Vcc=3.25V
3.1
3
3.6
3.5
3.4
3.3
3.2
+25 C
+85 C
- 40C
3.1
3
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
TUNING VOLTAGE (VOLTS)
Sensitivity vs. Tuning Voltage, Vcc= +3V
6
7
8
9
10
8
180
7
160
+25 C
+85 C
-40 C
140
OUTPUT POWER (dBm)
SENSITIVITY (MHz/VOLT)
5
Output Power vs.
Tuning Voltage, Vcc= +3V
200
120
100
80
60
40
6
15
5
4
3
2
+25 C
+85 C
-40 C
1
20
0
0
0
1
2
3
4
5
6
7
8
9
10
0
1
2
3
TUNING VOLTAGE (VOLTS)
-90
-95
10 KHz Offset
100 KHz Offset
-105
-110
-115
-120
1
2
3
4
5
6
7
TUNING VOLTAGE (VOLTS)
6
7
8
8
9
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
3
10
9
10
+25 C
+85 C
-40 C
SSB PHASE NOISE (dBc/Hz)
-85
0
5
Typical SSB Phase Noise @ Vtune= +5V
-80
-100
4
TUNING VOLTAGE (VOLTS)
Phase Noise vs. Tuning Voltage
SSB PHASE NOISE (dBc/Hz)
4
TUNING VOLTAGE (VOLTS)
10
VCOs - SMT
OUTPUT FREQUENCY (GHz)
GaAs vs.
MMIC
SUB-HARMONICALLY
PUMPEDvs.
MIXER
17 - 25Vcc=
GHz
Frequency
Tuning Voltage,
+3V
Frequency
Tuning
Voltage, T= 25°C
4
10
5
10
6
10
7
10
OFFSET FREQUENCY (Hz)
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
15 - 33
MICROWAVE CORPORATION
HMC389LP4
v01.0604
MMIC VCO w/ BUFFER
AMPLIFIER, 3.35 - 3.55 GHz
Absolute Maximum Ratings
Typical Supply Current vs. Vcc
Vcc
+3.5 Vdc
Vcc (V)
Icc (mA)
Vtune
0 to +11V
2.75
35
Channel Temperature
135 °C
3.0
41
Continuous Pdiss (T = 85°C)
(derate 6.28 mW/°C above 85°C)
3.25
46
565 W
Storage Temperature
-65 to +150 °C
Operating Temperature
-40 to +85 °C
Note: VCO will operate over full voltage range shown above.
Outline Drawing
VCOs - SMT
15
NOTES:
1. MATERIAL PACKAGE BODY: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEAD AND GROUND PADDLE MATERIAL: COPPER ALLOY
3. LEAD AND GROUND PADDLE PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
6. PAD BURR LENGTH SHALL BE 0.15mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05mm MAXIMUM.
7. PACKAGE WARP SHALL NOT EXCEED 0.05mm.
8. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
9. REFER TO HITTITE APPLICATION NOTE FOR SUGGESTED PCB
LAND PATTERN.
15 - 34
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MICROWAVE CORPORATION
HMC389LP4
v01.0604
MMIC VCO w/ BUFFER
AMPLIFIER, 3.35 - 3.55 GHz
Pin Descriptions
Pin Number
Function
Description
1- 14, 17 - 19,
21, 23, 24
N/C
No Connection
15
GND
This pin must be connected to RF & DC ground.
16
RFOUT
RF output (AC coupled)
20
Vcc
Supply Voltage Vcc= 3V
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.
Interface Schematic
22
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
VCOs - SMT
15
15 - 35
MICROWAVE CORPORATION
v01.0604
HMC389LP4
MMIC VCO w/ BUFFER
AMPLIFIER, 3.35 - 3.55 GHz
Evaluation PCB
VCOs - SMT
15
15 - 36
List of Materials
Item
Description
J1 - J2
PC Mount SMA RF Connector
J3 - J4
DC Pin
C1
4.7 µF Tantalum Capacitor
C2
10,000 pF Capacitor, 0603 Pkg.
U1
HMC389LP4 VCO
PCB*
105667 Eval Board
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 circuit board shown is available from Hittite upon
request.
* Circuit Board Material: Rogers 4350
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
MICROWAVE CORPORATION
v01.0604
HMC389LP4
MMIC VCO w/ BUFFER
AMPLIFIER, 3.35 - 3.55 GHz
Notes:
VCOs - SMT
15
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order Online at www.hittite.com
15 - 37