HMC438MS8G
/
438MS8GE
v05.0410
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
Typical Applications
Features
SSB Phase Noise: -153 dBc/Hz @100 kHz
Wide Bandwidth
Output Power: -1 dBm
Single DC Supply: +5V @ 80 mA
MS8G SMT Package
4
FREQUENCY DIVIDERS & DETECTORS - SMT
Prescaler for DC to C Band PLL Applications:
• UNII, Point-to-Point & VSAT Radios
• 802.11a & HiperLAN WLAN
• Fiber Optic
• Cellular / 3G Infrastructure
Functional Diagram
General Description
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.
Electrical Specifi cations,
T
A
= +25° C, 50 Ohm System, Vcc= 5V
Parameter
Maximum Input Frequency
Minimum Input Frequency
Input Power Range
Sine Wave Input [1]
Fin= 1 to 5 GHz
Fin= 5 to 6 GHz
Fin= 6 to 7 GHz
Output Power
Reverse Leakage
SSB Phase Noise (100 kHz offset)
Output Transition Time
Supply Current (Icc)
Both RF Outputs Terminated
Pin= 0 dBm, Fin= 6 GHz
Pin= 0 dBm, Fout= 882 MHz
-15
-15
-15
-4
-1
-50
-153
100
80
Conditions
Min.
7.0
Typ.
7.5
0.1
+12
+10
+5
Max.
Units
GHz
GHz
dBm
dBm
dBm
dBm
dBm
dBc/Hz
ps
mA
1. Divider will operate down to DC for square-wave input signal.
4 - 90
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
HMC438MS8G
/
438MS8GE
v05.0410
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
Input Sensitivity Window, T= 25 °C
20
15
INPUT POWER (dBm)
Input Sensitivity Window vs. Temperature
20
15
INPUT POWER (dBm)
10
5
0
-5
-10
-15
-20
Min Pin +25 C
Max Pin +25 C
Min Pin +85 C
Max Pin +85 C
Min Pin -40 C
Max Pin -40 C
4
FREQUENCY DIVIDERS & DETECTORS - SMT
4 - 91
10
5
0
-5
-10
-15
-20
0
1
2
3
4
5
6
7
8
9
INPUT FREQUENCY (GHz)
Recommended
Operating Window
0
1
2
3
4
5
6
7
8
9
INPUT FREQUENCY (GHz)
Output Power vs. Temperature
4
3
OUTPUT POWER (dBm)
2
1
0
-1
-2
-3
-4
-5
-6
0
1
2
3
4
5
6
7
8
9
INPUT FREQUENCY (GHz)
+25 C
+85 C
-40 C
SSB Phase Noise Performance,
Pin= 0 dBm, Fin= 6GHz, T= 25 °C
0
SSB PHASE NOISE (dBc/Hz)
-30
-60
-90
-120
-150
-180
2
10
10
3
10
4
10
5
10
6
10
7
OFFSET FREQUENCY (Hz)
Output Harmonic
Content, Pin= 0 dBm, T= 25 °C
0
Reverse Leakage, Pin= 0 dBm, T= 25 °C
0
-10
Both Output Ports Terminated
One Output Port Terminated
OUTPUT LEVEL (dBm)
OUTPUT LEVEL (dBm)
5
6
7
8
9
-10
-20
-30
-40
-50
-60
-70
-20
-30
Pfeedthru
2nd Harmonic
-40
-50
0
1
2
3
4
0
1
2
3
4
5
6
7
8
9
INPUT FREQUENCY (GHz)
INPUT FREQUENCY (GHz)
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
HMC438MS8G
/
438MS8GE
v04.0507
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
Output Voltage Waveform,
Pin= 0 dBm, Fout= 882 MHz, T= 25 °C
4
FREQUENCY DIVIDERS & DETECTORS - SMT
AMPLITUDE (mV)
300
200
100
0
-100
-200
-300
-400
-500
22.5
23
23.5
24
TIME (ns)
24.5
25
25.5
Absolute Maximum Ratings
RF Input Power (Vcc = +5V)
Nominal +5V Supply to GND
Max Peak Flow Temperature
Storage Temperature
ESD Sensitivity (HBM)
13 dBm
-0.3V to +5.5V
260 °C
-65 to +125 °C
Class 1A
Reliability Information
Junction Temperature to Maintain
1 Million Hour MTTF
Nominal Junction Temperature
(T = 85 °C)
Thermal Resistance
(Junction to GND Paddle, 5V Supply)
Operating Temperature
135 °C
122 °C
88.5 °C/W
-40 to +85 °C
DC blocking capacitors are required at RF input and RF output ports.
Choose value for lowest frequency of operation.
Typical Supply Current vs. Vcc
Vcc (V)
4.75
5.0
Icc (mA)
75
80
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
5.25
87
Note: Divider will operate over full voltage range shown above
4 - 92
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
HMC438MS8G
/
438MS8GE
v04.0507
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
Outline Drawing
4
FREQUENCY DIVIDERS & DETECTORS - SMT
4 - 93
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.
Package Information
Part Number
HMC438MS8G
HMC438MS8GE
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]
H438
XXXX
H438
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
Pin Description
Pin Number
1
Function
Vcc
Description
Supply voltage 5V ± 0.25V.
Interface Schematic
2
IN
RF input must be DC blocked.
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
HMC438MS8G
/
438MS8GE
v04.0507
SMT GaAs HBT MMIC
DIVIDE-BY-5, DC - 7 GHz
Pin Description
(Continued)
4
FREQUENCY DIVIDERS & DETECTORS - SMT
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.
Application Circuit
4 - 94
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
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