For price, delivery and to place orders: 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 Support: Phone: 978-250-3343 or apps@hittite.com
FREQUENCY DIVIDERS & DETECTORS - SMT
4 - 1
General Description
Features
Functional Diagram
The HMC438MS8G & HMC438MS8GE are low noise
Divide-by-5 Static Dividers utilizing InGaP GaAs
HBT technology in low cost 8 lead surface mount
plastic packages. This device operates from DC
(with a square wave input) to 7 GHz input frequency
from a single +5V DC supply. The low additive SSB
phase noise of -153 dBc/Hz at 100 kHz offset helps
the user maintain good system noise performance.
SSB Phase Noise: -153 dBc/Hz @100 kHz
Wide Bandwidth
Output Power: -1 dBm
Single DC Supply: +5V @ 80 mA
MS8G SMT Package
&MFDUSJDBM4QFDJàDBUJPOTTA= +25° C, 50 Ohm System, Vcc= 5V
Typical Applications
Prescaler for DC to C Band PLL Applications:
• UNII, Point-to-Point & VSAT Radios
• 802.11a & HiperLAN WLAN
• Fiber Optic
• Cellular / 3G Infrastructure
1. Divider will operate down to DC for square-wave input signal.
Parameter Conditions Min. Typ. Max. Units
Maximum Input Frequency 7.0 7.5 GHz
Minimum Input Frequency Sine Wave Input [1] 0.1 GHz
Input Power Range Fin= 1 to 5 GHz -15 +12 dBm
Fin= 5 to 6 GHz -15 +10 dBm
Fin= 6 to 7 GHz -15 +5 dBm
Output Power -4 -1 dBm
Reverse Leakage Both RF Outputs Terminated -50 dBm
SSB Phase Noise (100 kHz offset) Pin= 0 dBm, Fin= 6 GHz -153 dBc/Hz
Output Transition Time Pin= 0 dBm, Fout= 882 MHz 100 ps
Supply Current (Icc) 80 mA
/
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
v06.0914
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
For price, delivery and to place orders: 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 Support: Phone: 978-250-3343 or apps@hittite.com
FREQUENCY DIVIDERS & DETECTORS - SMT
4 - 2
SSB Phase Noise Performance,
Pin= 0 dBm, Fin= 6GHz, T= 25 °C
Input Sensitivity Window, T= 25 °C Input Sensitivity Window vs. Temperature
Output Power vs. Temperature
Recommended
Operating Window
Reverse Leakage, Pin= 0 dBm, T= 25 °C
Output Harmonic
Content, Pin= 0 dBm, T= 25 °C
HMC438MS8G /438MS8GE
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
v06.0914
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
For price, delivery and to place orders: 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 Support: Phone: 978-250-3343 or apps@hittite.com
FREQUENCY DIVIDERS & DETECTORS - SMT
4 - 3
Output Voltage Waveform,
Pin= 0 dBm, Fout= 882 MHz, T= 25 °C
Typical Supply Current vs. Vcc
Note: Divider will operate over full voltage range shown above
Vcc (V) Icc (mA)
4.75 75
5.0 80
5.25 87
DC blocking capacitors are required at RF input and RF output ports.
Choose value for lowest frequency of operation.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
HMC438MS8G /438MS8GE
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
v06.0914
Absolute Maximum Ratings Reliability Information
RF Input Power (Vcc = +5V) 13 dBm
Nominal +5V Supply to GND -0.3V to +5.5V
Max Peak Flow Temperature 260 °C
Storage Temperature -65 to +125 °C
ESD Sensitivity (HBM) Class 1A
Junction Temperature to Maintain
1 Million Hour MTTF 135 °C
Nominal Junction Temperature
(T = 85 °C) 122 °C
Thermal Resistance
(Junction to GND Paddle, 5V Supply) 88.5 °C/W
Operating Temperature -40 to +85 °C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
For price, delivery and to place orders: 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 Support: Phone: 978-250-3343 or apps@hittite.com
FREQUENCY DIVIDERS & DETECTORS - SMT
4 - 4
Outline Drawing
Pin Number Function Description Interface Schematic
1 Vcc Supply voltage 5V ± 0.25V.
2 IN RF input must be DC blocked.
Pin Description
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
5. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO
PCB RF GROUND.
Part Number Package Body Material Lead Finish MSL Rating Package Marking [3]
HMC438MS8G Low Stress Injection Molded Plastic Sn/Pb Solder MSL1 [1] H438
XXXX
HMC438MS8GE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL1 [2] H438
XXXX
<>.BYQFBLSFáPXUFNQFSBUVSFPG$
<>.BYQFBLSFáPXUFNQFSBUVSFPG$
[3] 4-Digit lot number XXXX
Package Information
HMC438MS8G /438MS8GE
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
v06.0914
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
For price, delivery and to place orders: 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 Support: Phone: 978-250-3343 or apps@hittite.com
FREQUENCY DIVIDERS & DETECTORS - SMT
4 - 5
Application Circuit
HMC438MS8G /438MS8GE
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
v06.0914
Pin Number Function Description Interface Schematic
3 IN RF input 180° out of phase with pin 2 for differential
operation. AC ground for single ended operation.
4, 5 GND All ground leads and ground paddle must be soldered
to PCB RF/DC ground.
6 OUT Divided output 180° out of phase with pin 7.
7 OUT Divided Output.
8 N/C
The pins are not connected internally; however, all data
shown herein was measured with these pins connected
to RF/DC ground externally.
Pin Description (Continued)
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
For price, delivery and to place orders: 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 Support: Phone: 978-250-3343 or apps@hittite.com
FREQUENCY DIVIDERS & DETECTORS - SMT
4 - 6
Evaluation PCB
List of Materials for Evaluation PCB 105786 [1]
Item Description
J1 - J3 PCB Mount SMA RF Connector
J4, J5 DC Pin
C1 - C4 100 pF Capacitor, 0402 Pkg.
C5 10,000 pF Capacitor, 0603 Pkg.
C6 4.7 µF Tantalum Capacitor
U1 HMC438MS8G / HMC438MS8GE
Divide-by-5
PCB [2] 105697 Eval Board
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
The circuit board used in the 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 con-
nected 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.
HMC438MS8G /438MS8GE
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
v06.0914
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
