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FREQUENCY DIVIDERS & DETECTORS - SMT
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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 HMC493LP3 & HMC493LP3E are low noise
Divide-by-4 Static Dividers utilizing InGaP GaAs HBT
technology packaged in leadless 3x3 mm QFN sur-
face mount plastic packages. This device operates
from DC (with a square wave input) to 18 GHz input
frequency from a single +5V DC supply. The low addi-
tive SSB phase noise of -150 dBc/Hz at 100 kHz offset
helps the user maintain excellent system noise per-
formance.
Ultra Low SSB Phase Noise: -150 dBc/Hz
Very Wide Bandwidth
Output Power: -4 dBm
Single DC Supply: +5V
3x3 mm QFN SMT Package
Typical Applications
Prescaler for DC to 18 GHz PLL Applications:
• Point-to-Point / Multi-Point Radios
• VSAT Radios
• Fiber Optic
• Test Equipment
• Military
Electrical Speci cations, TA = +25° C, 50 Ohm System, Vcc= +5V
Parameter Conditions Min. Typ. Max. Units
Maximum Input Frequency 18 18.5 GHz
Minimum Input Frequency Sine Wave Input. [1] 0.2 0.5 GHz
Input Power Range Fin = 2 to 12 GHz -20 -15 +10 dBm
Fin = 12 to 14 GHz -20 -15 +3 dBm
Fin = 14 to 16 GHz -20 -15 0 dBm
Fin = 16 to 18 GHz -15 -10 0 dBm
Output Power Fin = 0.5 to 18 GHz -7 -4 dBm
Reverse Leakage Both RF Outputs Terminated 55 dB
SSB Phase Noise (100 kHz offset) Pin = 0 dBm, Fin = 6 GHz -150 dBc/Hz
Output Transition Time Pin = 0 dBm, Fout = 882 MHz 100 pSec
Supply Current (Icc1 + Icc2) 96 mA
HMC493LP3 / 493LP3E
SMT GaAs HBT MMIC
DIVIDE-BY-4, DC - 18 GHz
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1. Divider will operate down to DC for square-wave input signal
FREQUENCY DIVIDERS & DETECTORS - SMT
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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
SSB Phase Noise Performance,
Pin= 0 dBm, T= 25 °C
Input Sensitivity Window, T= 25 °C Input Sensitivity Window vs. Temperature
Output Power vs. Temperature
Reverse Leakage, Pin= 0 dBm, T= 25 °C
Output Harmonic Content,
Pin= 0 dBm, T= 25 °C
-30
-20
-10
0
10
20
0 2 4 6 8 10 12 14 16 18 20
INPUT POWER (dBm)
INPUT FREQUENCY (GHz)
Recommended
Operating Window
-30
-20
-10
0
10
20
0 2 4 6 8 10 12 14 16 18 20
Min Pin +25C
Max Pin +25C
Min Pin +85C
Max Pin +85C
Min Pin -40C
Max Pin -40C
INPUT POWER (dBm)
INPUT FREQUENCY (GHz)
-10
-8
-6
-4
-2
0
048121620
+25C
+85C
-40C
OUTPUT POWER (dBm)
INPUT FREQUENCY (GHz)
-160
-140
-120
-100
-80
-60
-40
-20
0
102103104105106107
SSB PHASE NOISE (dBc/Hz)
OFFSET FREQUENCY (Hz)
-50
-40
-30
-20
-10
0
0 2 4 6 8 10 12 14 16 18 20
Pfeedthru
2nd Harmonic
3rd Harmonic
OUTPUT LEVEL (dBm)
INPUT FREQUENCY (GHz)
-80
-70
-60
-50
-40
-30
-20
-10
0
0 2 4 6 8 10 12 14 16 18 20
Both Output Ports Terminated
One Output Port Terminated
OUTPUT LEVEL (dBm)
INPUT FREQUENCY (GHz)
HMC493LP3 / 493LP3E
SMT GaAs HBT MMIC
DIVIDE-BY-4, DC - 18 GHz
v04.0507
FREQUENCY DIVIDERS & DETECTORS - SMT
6
6 - 126
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
Output Voltage Waveform,
Pin= 0 dBm, Fout= 882 MHz, T= 25 °C Absolute Maximum Ratings
Outline Drawing
Typical Supply Current vs. Vcc
Note: Divider will operate over full voltage range shown above
RF Input (Vcc = +5V) +13 dBm
Supply Voltage (Vcc1, Vcc2) +5.5V
Channel Temperature (Tc) 135 °C
Continuous Pdiss (T = 85 °C)
(derate 11.9 mW/° C above 85 °C) 593 mW
Thermal Resistance (RTH)
(junction to ground paddle) 84 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
ESD Sensitivity (HBM) Class 1A
-500
-300
-100
100
300
500
22.7 23.1 23.5 23.9 24.3 24.7
AMPLITUDE (mV)
TIME (nS)
Vcc1, Vcc2 (V) Icc (mA)
4.75 84
5.0 96
5.25 108
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
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 NOTE FOR SUGGESTED
LAND PATTERN.
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC493LP3 Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] 493
XXXX
HMC493LP3E RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] 493
XXXX
[1] Max peak re ow temperature of 235 °C
[2] Max peak re ow temperature of 260 °C
[3] 4-Digit lot number XXXX
Package Information
HMC493LP3 / 493LP3E
SMT GaAs HBT MMIC
DIVIDE-BY-4, DC - 18 GHz
v04.0507
FREQUENCY DIVIDERS & DETECTORS - SMT
6
6 - 127
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, 4-9,
12, 13, 16 N/C No connection.
2 IN RF Input must be DC blocked.
3IN
RF Input 180° out of phase with pin 2 for differential operation.
AC ground for single ended operation.
10 OUT Divided Output.
11 OUT Divided output 180° out of phase with pin 10.
14, 15 Vcc1, Vcc2 Supply voltage 5V ± 0.25V. Connect both pins to +5V supply.
GND Ground: Backside of package has exposed metal ground slug which
must be connected to RF/DC ground.
Pin Description
HMC493LP3 / 493LP3E
SMT GaAs HBT MMIC
DIVIDE-BY-4, DC - 18 GHz
v04.0507
FREQUENCY DIVIDERS & DETECTORS - SMT
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6 - 128
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
Evaluation PCB
List of Materials for Evaluation PCB 107384 [1]
The circuit board used in the  nal application should
use RF circuit design techniques. Signal lines
should have 50 ohm impedance while the package
ground leads and backside ground slug 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. This evaluation board is
designed for single ended input testing. J2 and J3
provide differential output signals.
Item Description
J1 - J3 PCB Mount SMA RF Connector
J4, J5 DC Pin
C2 - C5 100 pF Capacitor, 0402 Pkg.
C6 1000 pF Capacitor, 0603 Pkg.
C1 2.2 uF Tantalum Capacitor
U1 HMC493LP3 / HMC493LP3E Divide-by-2
PCB [2] 107197 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC493LP3 / 493LP3E
SMT GaAs HBT MMIC
DIVIDE-BY-4, DC - 18 GHz
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FREQUENCY DIVIDERS & DETECTORS - SMT
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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
Application Circuit
HMC493LP3 / 493LP3E
SMT GaAs HBT MMIC
DIVIDE-BY-4, DC - 18 GHz
v04.0507
