HMC438MS8G / 438MS8GE
v03.0705
SMT GaAs HBT MMIC DIVIDE-BY-5, DC - 7.0 GHz
Typical Applications Features
SSB Phase Noise: -153 dBc/Hz @100KHz Wide Bandwidth Output Power: -1 dBm Single DC Supply: +5V @ 80 mA MS8G SMT Package
6
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 7.0 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 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 -12 -12 -10 -4 Conditions Min. 7.0 Typ. 7.5 0.1 -15 -15 -15 -1 -50 -153 100 80 +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.
6 - 90
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
HMC438MS8G / 438MS8GE
v03.0705
SMT GaAs HBT MMIC DIVIDE-BY-5, DC - 7.0 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
6
FREQUENCY DIVIDERS & DETECTORS - SMT
6 - 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 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 -160 -170 2 10
SSB PHASE NOISE (dBc/Hz)
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
-10 OUTPUT LEVEL (dBm) OUTPUT LEVEL (dBm) -20 -30 -40 -50 -60 -70 0 1 2 3 4 5 6 7 8 9 0 1 2 3
-20
-30
-40
Pfeedthru 2nd Harmonic
-50 INPUT FREQUENCY (GHz)
4
5
6
7
8
9
INPUT FREQUENCY (GHz)
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
HMC438MS8G / 438MS8GE
v03.0705
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
RF Input (Vcc= +5V) Vcc Maximum Channel Temperature Continuous Pdiss (T=85 °C) (derate 11.3mW/°C above 92 °C) Storage Temperature Operating Temperature +13 dBm +5.5V 135 °C 485mW -65 to +150 °C -40 to +85 °C
6
FREQUENCY DIVIDERS & DETECTORS - SMT
AMPLITUDE (mV)
300 200 100 0 -100 -200 -300 -400 -500 22.5
DC blocking capacitors are required at RF input and RF output ports. Choose value for lowest frequency of operation.
23
23.5
24 TIME (ns)
24.5
25
25.5
Typical Supply Current vs. Vcc
Vcc (V) 4.75 Icc (mA) 75 80
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
5.0
5.25 87 Note: Divider will operate over full voltage range shown above
Outline Drawing
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
6 - 92
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
HMC438MS8G / 438MS8GE
v03.0705
SMT GaAs HBT MMIC DIVIDE-BY-5, DC - 7.0 GHz
Pin Description
Pin Number 1 Function Vcc Description Supply voltage 5V ± 0.25V. Interface Schematic
6
FREQUENCY DIVIDERS & DETECTORS - SMT
6 - 93
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: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
HMC438MS8G / 438MS8GE
v03.0705
SMT GaAs HBT MMIC DIVIDE-BY-5, DC - 7.0 GHz
Evaluation PCB
6
FREQUENCY DIVIDERS & DETECTORS - SMT
List of Materials for Evaluation PCB 105786 [1]
Item J1 - J3 J4, J5 C1 - C4 C5 C6 U1 PCB [2] Description PCB Mount SMA RF Connector DC Pin 100 pF Capacitor, 0402 Pkg. 10,000 pF Capacitor, 0603 Pkg. 4.7 μF Tantalum Capacitor HMC438MS8G / HMC438MS8GE Divide-by-5 105697 Eval Board
[1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Rogers 4350
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.
6 - 94
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
HMC438MS8G / 438MS8GE
v03.0705
SMT GaAs HBT MMIC DIVIDE-BY-5, DC - 7.0 GHz
Application Circuit
6
FREQUENCY DIVIDERS & DETECTORS - SMT
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
6 - 95
