HMC505LP4
/
505LP4E
v02.0508
MMIC VCO w/ BUFFER
AMPLIFIER, 6.8 - 7.4 GHz
Typical Applications
Low noise MMIC VCO w/Buffer Amplifier for:
• VSAT & Microwave Radio
• Test Equipment & Industrial Controls
• Military
Features
Pout: +11dBm
Phase Noise: -106 dBc/Hz @100 kHz
No External Resonator Needed
Single Supply: +3V @ 80 mA
QFN Leadless SMT Package, 16mm
2
Functional Diagram
General Description
The HMC505LP4 & HMC505LP4E are GaAs InGaP
Heterojunction Bipolar Transistor (HBT) MMIC VCOs
with integrated resonators, negative resistance
devices, varactor diodes, and buffer amplifiers.
Covering 6.8 to 7.4 GHz, the VCO’s phase noise
performance is excellent over temperature, shock and
vibration due to the oscillator’s monolithic structure.
Power output is +11 dBm typical from a single supply
of +3V @ 80 mA. The voltage controlled oscillator is
packaged in a leadless QFN 4x4 mm surface mount
package.
11
VCO
S
& PLOs - 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 = +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
9
-19
-28
6
20
0.8
1
80
10
8
Min.
Typ.
6.8 - 7.4
11
-106
11
Max.
Units
GHz
dBm
dBc/Hz
V
mA
μA
dB
dBc
dBc
MHz pp
MHz/V
MHz/°C
11 - 96
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
HMC505LP4
/
505LP4E
v02.0508
MMIC VCO w/ BUFFER
AMPLIFIER, 6.8 - 7.4 GHz
Frequency vs. Tuning Voltage, T= 25°C
8
7.8
7.6
FREQUENCY (GHz)
7.4
7.2
7
6.8
6.6
6.4
6.2
6
0
1
2
3
4
5
6
7
8
9
10
11
TUNING VOLTAGE (VOLTS)
2.75V
3.0V
3.25V
Frequency vs. Tuning Voltage, Vcc= +3V
8
7.8
7.6
FREQUENCY (GHz)
7.4
7.2
7
6.8
6.6
6.4
6.2
6
0
1
2
3
4
5
6
7
8
9
10
11
TUNING VOLTAGE (VOLTS)
+25C
+85C
-40C
11
VCO
S
& PLOs - SMT
11 - 97
Sensitivity vs. Tuning Voltage, Vcc= +3V
400
360
SENSITIVITY (MHz/VOLT)
Output Power vs.
Tuning Voltage, Vcc= +3V
18
16
OUTPUT POWER (dBm)
320
280
240
200
160
120
80
40
0
0
1
2
3
4
5
6
+25C
+85C
-40C
14
12
10
8
6
4
+25C
+85C
-40C
7
8
9
10
11
0
1
2
3
4
5
6
7
8
9
10
11
TUNING VOLTAGE (VOLTS)
TUNING VOLTAGE (VOLTS)
Phase Noise vs. Tuning Voltage
-65
SSB PHASE NOISE (dBc/Hz)
-75
-85
-95
10kHz offset
100kHz offset
Typical SSB Phase Noise @ Vtune= +5V
0
SSB PHASE NOISE (dBc/Hz)
-20
-40
-60
-80
-100
-120
-140
-160
3
10
+25C
+85C
-40C
-105
-115
-125
0
1
2
3
4
5
6
7
8
9
10
11
TUNING VOLTAGE (VOLTS)
10
4
10
5
10
6
10
7
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
HMC505LP4
/
505LP4E
v02.0508
MMIC VCO w/ BUFFER
AMPLIFIER, 6.8 - 7.4 GHz
Absolute Maximum Ratings
Vcc
Vtune
Channel Temperature
Continuous Pdiss (T = 85°C)
(derate 6.31 mW/°C above 85°C)
Thermal Resistance (R
TH
)
(junction to package base)
Storage Temperature
Operating Temperature
ESD Sensitivity (HBM)
+3.5 Vdc
0 to +11V
135 °C
315 mW
158 °C/W
-65 to +150 °C
-40 to +85 °C
Class 1A
Typical Supply Current vs. Vcc
Vcc (V)
2.75
3.0
3.25
Icc (mA)
70
80
90
Note: VCO will operate over full voltage range shown above.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
11
VCO
S
& PLOs - SMT
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 NOT FOR SUGGESTED
LAND PATTERN.
Package Information
Part Number
HMC505LP4
HMC505LP4E
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]
H505
XXXX
H505
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
11 - 98
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
HMC505LP4
/
505LP4E
v02.0508
MMIC VCO w/ BUFFER
AMPLIFIER, 6.8 - 7.4 GHz
Pin Descriptions
Pin Number
1- 14, 17 - 19,
21, 23, 24
Function
N/C
Description
No Connection. These pins may be connected to RF
ground. Performance will not be affected.
Interface Schematic
15
GND
This pin must be connected to RF & DC ground.
16
RFOUT
RF output (AC coupled)
20
Vcc
Supply Voltage Vcc= 3V
11
VCO
S
& PLOs - SMT
11 - 99
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
HMC505LP4
/
505LP4E
v02.0508
MMIC VCO w/ BUFFER
AMPLIFIER, 6.8 - 7.4 GHz
Evaluation PCB
11
VCO
S
& 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.
HMC505LP4 / HMC505LP4E 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 circuit board shown is available from
Hittite upon request.
11 - 100
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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