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v02.0202
MICROWAVE CORPORATION
HMC358MS8G
MMIC VCO w/ BUFFER AMPLIFIER, 5.8 - 6.8 GHz
Features
Pout: +11 dBm Phase Noise: -110 dBc/Hz @100 KHz No External Resonator Needed Single Supply: 3V @ 100 mA 15mm2 MSOP8G SMT Package
Typical Applications
Low noise MMIC VCO w/Buffer Amplifier for C-Band applications such as: * UNII & Pt. to Pt. Radios * 802.11a & HiperLAN WLAN * VSAT Radios
Functional Diagram
General Description
The HMC358MS8G is a GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCO. The HMC358MS8G integrates a resonator, negative resistance device, varactor diode, and buffer amplifier. The VCO's phase noise performance is excellent over temperature, shock, and process due to the oscillator's monolithic structure. Power output is 11 dBm typical from a 3.0V supply voltage. The voltage controlled oscillator is packaged in a low cost, surface mount 8 lead MSOP package with an exposed base for improved RF and thermal performance.
15
VCOs - SMT
Electrical Specifications, TA = +25 C, Vcc = +3V
Parameter Frequency Range Power Output SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output Tune Voltage (Vtune) Supply Current (Icc) Tune Port Leakage Current (Vtune= 10V) Output Return Loss Harmonics 2nd 3rd Pulling (into a 2.0:1 VSWR) Pushing @ Vtune= +3V Frequency Drift Rate 9 0 100 10 8 Min. Typ. 5.8 - 6.8 11 -110 10 Max. Units GHz dBm dBc/Hz V mA A dB
-10 -20 10 150 0.8
dB dB MHz pp MHz/V MHz/C
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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
v02.0202
MICROWAVE CORPORATION
HMC358MS8G
MMIC VCO w/ BUFFER AMPLIFIER, 5.8 - 6.8 GHz
GaAs MMIC SUB-HARMONICALLY Frequency vs. Tuning Voltage, Vcc= +3V PUMPED MIXER 17 - 25 GHz Frequency vs. Tuning Voltage, T= 25C
7.2 7.2
OUTPUT FREQUENCY (GHz)
6.8 6.6 6.4 6.2 6 5.8 5.6 0 1 2 3 4 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS)
Vcc= 2.75V Vcc= 3.0V Vcc= 3.25V
OUTPUT FREQUENCY (GHz)
7
7 6.8 6.6 6.4 6.2 6 5.8 5.6 0 1 2 3 4 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS)
+25 C +85 C -40 C
Sensitivity vs. Tuning Voltage, Vcc= +3V
300 250 200 150 100 50 0 0 1 2 3 4 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS)
+25 C +85 C -40 C
Output Power vs. Tuning Voltage, Vcc= +3V
20 18
SENSITIVITY (MHz/VOLT)
OUTPUT POWER (dBm)
16 14 12 10 8 6 4 2 0 0 1 2 3 4 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS)
+25 C +85 C -40 C
15
VCOs - SMT
15 - 3
Phase Noise vs. Tuning Voltage
-60 -70 -80 -90
Typical SSB Phase Noise @ Vtune= +5V
0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 3 10
SSB PHASE NOISE (dBc/Hz)
10 kHz offset 100 kHz offset
-100 -110 -120 1 2 3 4 5 6 7
SSB PHASE NOISE (dBc/Hz)
+25 C +85 C -40 C
8
9
10
10
4
10
5
10
6
10
7
TUNING VOLTAGE (VOLTS)
OFFSET FREQUENCY (Hz)
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
v02.0202
MICROWAVE CORPORATION
HMC358MS8G
MMIC VCO w/ BUFFER AMPLIFIER, 5.8 - 6.8 GHz
Absolute Maximum Ratings
Vcc Storage Temperature Operating Temperature Vtune 3.5 Vdc -65 to +150 C -40 to +85 C 0 to 11V
Typical Supply Current vs. Vcc
Vcc (V) 2.75 3.0 3.25 Icc (mA) 80 100 115
Note: VCO will operate over full voltage range shown above.
Outline Drawing
15
VCOs - SMT
NOTES: 1. PACKAGE BODY MATERIAL: LOW STRESS INJECTION MOLDED PLASTIC. SILICA AND SILICON IMPREGNATED. 2. LEADFRAME MATERIAL: COPPER ALLOY 3. LEADFRAME PLATING: TIN/LEAD SOLDER 4. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 5. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15 mm PER SIDE. 6. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25 mm PER SIDE.
15 - 4
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
v02.0202
MICROWAVE CORPORATION
HMC358MS8G
MMIC VCO w/ BUFFER AMPLIFIER, 5.8 - 6.8 GHz
Pin Descriptions
Pin Number Function Description Interface Schematic
1
Vcc
Supply Voltage Vcc= 3V
2, 6, 7
N/C
No Connection
3
VTUNE
Control Voltage Input. Modulation port bandwidth dependent on drive source impedance.
4, 5
GND
Package bottom has an exposed metal paddle that must be RF & DC grounded.
15
VCOs - SMT
15 - 5
8
RFOUT
RF output (AC coupled).
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
v02.0202
MICROWAVE CORPORATION
HMC358MS8G
MMIC VCO w/ BUFFER AMPLIFIER, 5.8 - 6.8 GHz
Evaluation PCB
15
VCOs - SMT
List of Materials
Item J1 - J3 C1 U1 PCB* Description PC Mount SMA RF Connector 10 F Tantalum Capacitor HMC358MS8G VCO 104368 Eval Board
* 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.
15 - 6
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
v02.0202
MICROWAVE CORPORATION
HMC358MS8G
MMIC VCO w/ BUFFER AMPLIFIER, 5.8 - 6.8 GHz
Notes:
15
VCOs - SMT
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
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