15
V
C
Os - SM
T
15 - 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
General Description
Features
Functional Diagram
The HMC505LP4 & HMC505LP4E are GaAs InGaP
Heterojunction Bipolar Transistor (HBT) MMIC VCOs
with integrated resonators, negative resistance devices,
varactor diodes, and buffer amplifi ers. 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.
Pout: +11dBm
Phase Noise: -106 dBc/Hz @100 kHz
No External Resonator Needed
Single Supply: +3V @ 80 mA
QFN Leadless SMT Package, 16mm2
Typical Applications
Low noise MMIC VCO w/Buffer Amplifi er for:
VSAT & Microwave Radio
Test Equipment & Industrial Controls
Military
Electrical Specifications,
T
A
= +25 C, Vcc = +3V
Parameter
Min.
Typ.
Max.
Units
Frequency Range
6.8 - 7.4
GHz
Power Output
8
11
dBm
SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output
-106
dBc/Hz
Tune Voltage (Vtune)
1
11
V
Supply Current (Icc) (Vcc = +3.0V)
80
mA
Tune Port Leakage Current
10
A
Output Return Loss
9
dB
Harmonics
2nd
3rd
-19
-28
dBc
dBc
Pulling (into a 2.0:1 VSWR)
6
MHz pp
Pushing @ Vtune= +5V
20
MHz/V
Frequency Drift Rate
0.8
MHz/C
MMIC VCO w/ BUFFER
AMPLIFIER, 6.8 - 7.4 GHz
v01.0805
HMC505LP4
/
505LP4E
15
V
C
Os - SM
T
15 - 97
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
Frequency vs. Tuning Voltage, T= 25C
Sensitivity vs. Tuning Voltage, Vcc= +3V
Typical SSB Phase Noise @ Vtune= +5V
Phase Noise vs. Tuning Voltage
Frequency vs. Tuning Voltage, Vcc= +3V
Output Power vs.
Tuning Voltage, Vcc= +3V
6
6.2
6.4
6.6
6.8
7
7.2
7.4
7.6
7.8
8
0
1
2
3
4
5
6
7
8
9
10
11
2.75V
3.0V
3.25V
FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
6
6.2
6.4
6.6
6.8
7
7.2
7.4
7.6
7.8
8
0
1
2
3
4
5
6
7
8
9
10
11
+25C
+85C
-40C
FREQUENCY (GHz)
TUNING VOLTAGE (VOLTS)
0
40
80
120
160
200
240
280
320
360
400
0
1
2
3
4
5
6
7
8
9
10
11
+25C
+85C
-40C
SENSITIVITY (MHz/VOLT)
TUNING VOLTAGE (VOLTS)
4
6
8
10
12
14
16
18
0
1
2
3
4
5
6
7
8
9
10
11
+25C
+85C
-40C
OUTPUT POWER (dBm)
TUNING VOLTAGE (VOLTS)
-125
-120
-115
-110
-105
-100
-95
-90
-85
-80
-75
-70
-65
-60
0
1
2
3
4
5
6
7
8
9
10
11
10kHz offset
100kHz offset
SSB PHASE NOISE (dBc/Hz)
TUNING VOLTAGE (VOLTS)
-160
-140
-120
-100
-80
-60
-40
-20
0
10
3
10
4
10
5
10
6
10
7
+25C
+85C
-40C
SSB PHASE NOISE (dBc/Hz)
OFFSET FREQUENCY (Hz)
MMIC VCO w/ BUFFER
AMPLIFIER, 6.8 - 7.4 GHz
v01.0805
HMC505LP4
/
505LP4E
15
V
C
Os - SM
T
15 - 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
Absolute Maximum Ratings
Outline Drawing
Vcc
+3.5 Vdc
Vtune
0 to +11V
Channel Temperature
135 C
Continuous Pdiss (T = 85C)
(derate 6.31 mW/C above 85C)
315 mW
Thermal Resistance (R
TH
)
(junction to package base)
158 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)
2.75
70
3.0
80
3.25
90
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
MMIC VCO w/ BUFFER
AMPLIFIER, 6.8 - 7.4 GHz
v01.0805
HMC505LP4
/
505LP4E
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.
Part Number
Package Body Material
Lead Finish
MSL Rating
Package Marking
[3]
HMC505LP4
Low Stress Injection Molded Plastic
Sn/Pb Solder
MSL1
[1]
H505
XXXX
HMC505LP4E
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL1
[2]
H505
XXXX
[1] Max peak refl ow temperature of 235 C
[2] Max peak refl ow temperature of 260 C
[3] 4-Digit lot number XXXX
Package Information
15
V
C
Os - SM
T
15 - 99
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
Pin Number
Function
Description
Interface Schematic
1- 14, 17 - 19,
21, 23, 24
N/C
No Connection. These pins may be connected to RF
ground. Performance will not be affected.
15
GND
This pin must be connected to RF & DC ground.
16
RFOUT
RF output (AC coupled)
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.
Pin Descriptions
MMIC VCO w/ BUFFER
AMPLIFIER, 6.8 - 7.4 GHz
v01.0805
HMC505LP4
/
505LP4E
15
V
C
Os - SM
T
15 - 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
The circuit board used in the fi nal 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 suffi cient 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.
Evaluation PCB
Item
Description
J1 - J2
PCB Mount SMA RF Connector
J3 - J4
DC Pin
C1
4.7 F Tantalum Capacitor
C2
10,000 pF Capacitor, 0603 Pkg.
U1
HMC505LP4 / HMC505LP4E VCO
PCB
[2]
105667 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
MMIC VCO w/ BUFFER
AMPLIFIER, 6.8 - 7.4 GHz
v01.0805
HMC505LP4
/
505LP4E
List of Materials for Evaluation PCB 105706
[1]
PDF 
ZIP