MICROWAVE CORPORATION
HMC438MS8G
v01.1002
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7.0 GHz
FREQ. DIVIDER & DETECTORS - SMT
10
Typical Applications
Features
Prescaler for DC to C Band PLL Applications:
SSB Phase Noise: -153 dBc/Hz @100KHz
• UNII, Pt. - Pt. & VSAT Radios
Wide Bandwidth
• 802.11a & HiperLAN WLAN
Output Power: -1 dBm
• Fiber Optic
Single DC Supply: +5V @ 80 mA
• Cellular / 3G Infrastructure
MS8G SMT Package
Functional Diagram
General Description
The HMC438MS8G is a low noise Divide-by-5 Static
Divider utilizing InGaP GaAs HBT technology in a
low cost 8 lead surface mount plastic package. This
device operates from DC (with a square wave input)
to 7.0 GHz input frequency from a single +5.0V DC
supply. The low additive SSB phase noise of -153
dBc/Hz at 100 kHz offset helps the user maintain
good system noise performance.
Electrical Specifications, TA = +25° C, 50 Ohm System, Vcc= 5V
Parameter
Conditions
Maximum Input Frequency
Minimum Input Frequency
Input Power Range
SSB Phase Noise (100 kHz offset)
Output Transition Time
Typ.
7.0
7.5
GHz
0.1
GHz
Sine Wave Input [1]
Max.
-12
-15
+12
dBm
Fin= 5 to 6 GHz
-12
-15
+10
dBm
Fin= 6 to 7 GHz
-10
-15
+5
dBm
-4
-1
dBm
Both RF Outputs Terminated
-50
dBm
Pin= 0 dBm, Fin= 6 GHz
-153
dBc/Hz
Pin= 0 dBm, Fout= 882 MHz
100
ps
80
mA
Supply Current (Icc)
1. Divider will operate down to DC for square-wave input signal.
10 - 96
Units
Fin= 1 to 5 GHz
Output Power
Reverse Leakage
Min.
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
HMC438MS8G
v01.1002
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7.0 GHz
20
15
15
10
10
5
Recommended
Operating Window
0
-5
-10
-15
5
Min Pin +25 C
Max Pin +25 C
Min Pin +85 C
Max Pin +85 C
Min Pin -40 C
Max Pin -40 C
0
-5
-10
-15
-20
-20
0
1
2
3
4
5
6
7
8
9
0
1
2
INPUT FREQUENCY (GHz)
+25 C
2
SSB PHASE NOISE (dBc/Hz)
OUTPUT POWER (dBm)
3
+85 C
-40 C
1
0
-1
-2
-3
-4
-5
-6
1
2
3
4
5
6
4
5
6
7
8
9
SSB Phase Noise Performance,
Pin= 0 dBm, Fin= 6GHz, T= 25 °C
4
0
3
INPUT FREQUENCY (GHz)
Output Power vs. Temperature
7
8
9
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
-110
-120
-130
-140
-150
-160
-170
2
10
10
3
INPUT FREQUENCY (GHz)
10
4
10
5
10
6
10
OFFSET FREQUENCY (Hz)
Output Harmonic
Content, Pin= 0 dBm, T= 25 °C
Reverse Leakage, Pin= 0 dBm, T= 25 °C
0
0
Both Output Ports Terminated
-10
One Output Port Terminated
OUTPUT LEVEL (dBm)
-10
OUTPUT LEVEL (dBm)
10
-20
Pfeedthru
2nd Harm
3rd Harm
-30
-40
7
FREQ. DIVIDERS & DETECTORS - SMT
20
INPUT POWER (dBm)
INPUT POWER (dBm)
MMIC
SUB-HARMONICALLY
PUMPED
MIXER
- 25 GHz
InputGaAs
Sensitivity
Window,
T= 25 °C
Input
Sensitivity
Window17
vs. Temperature
-20
-30
-40
-50
-60
-50
-70
0
1
2
3
4
5
6
INPUT FREQUENCY (GHz)
7
8
9
0
1
2
3
4
5
6
7
8
9
INPUT FREQUENCY (GHz)
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
10 - 9
MICROWAVE CORPORATION
HMC438MS8G
v01.1002
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7.0 GHz
Output Voltage Waveform,
Pin= 0 dBm, Fout= 882 MHz, T= 25 °C
Absolute Maximum Ratings
400
FREQ. DIVIDER & DETECTORS - SMT
10
AMPLITUDE (mV)
300
200
100
0
-100
+13 dBm
Vcc
+5.5V
Maximum Channel Temperature
135 °C
Continuous Pdiss (T=85 °C)
(derate 11.3mW/°C above 92 °C)
485mW
Storage Temperature
-65 to +150 °C
Operating Temperature
-40 to +85 °C
DC blocking capacitors are required at RF input and RF output ports.
Choose value for lowest frequency of operation.
-200
-300
22.5
RF Input (Vcc= +5V)
23
23.5
24
24.5
25
Typical Supply Current vs. Vcc
25.5
TIME (ns)
Vcc (V)
Icc (mA)
4.75
75
5.0
80
5.25
87
Note: Divider will operate over full voltage range shown above
Outline Drawing
NOTES:
1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED
PLASTIC SILICA AND SILICON IMPREGNATED.
2. LEADFRAME MATERIAL: COPPER ALLOY
3. LEADFRAME PLATING: Sn/Pb SOLDER
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
7. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
10 - 98
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
HMC438MS8G
v01.1002
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7.0 GHz
Pin Description
Pin Number
Function
Description
1
Vcc
Supply voltage 5V ± 0.25V.
Interface Schematic
2
IN
RF input must be DC blocked.
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
No Connection
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
FREQ. DIVIDERS & DETECTORS - SMT
10
10 - 9
MICROWAVE CORPORATION
v01.1002
HMC438MS8G
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7.0 GHz
Evaluation PCB
FREQ. DIVIDER & DETECTORS - SMT
10
List of Materials
Item
Description
J1 - J3
PC 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 Divide-by-5
PCB*
105697 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 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.
* Circuit Board Material: Rogers 4350
10 - 100
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
v01.1002
HMC438MS8G
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7.0 GHz
Application Circuit
FREQ. DIVIDERS & DETECTORS - SMT
10
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
10 - 10
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