HMC398QS16G / 398QS16GE
v02.0805
Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz
Typical Applications
Low noise MMIC VCO w/Divide-by-8 for Ku-Band applications such as: • Point-to-Point Radios • Point-to-Multi-Point Radios / LMDS • VSAT
Features
Pout: +7 dBm Phase Noise: -105 dBc/Hz @100 KHz Typ. No External Resonator Needed Single Supply: 5V @ 325 mA QSOP16G SMT Package
Functional Diagram
General Description
The HMC398QS16G & HMC398QS16GE are single chip GaAs InGaP Heterojunction Bipolar Transistor (HBT) MMIC VCOs. The HMC398QS16G & HMC398QS16GE integrate resonators, negative resistance devices, varactor diodes and divide-by-8 prescalers. The VCO’s phase noise performance is excellent over temperature, shock, and process due to the oscillator’s monolithic structure. Power output is +7 dBm typical from a 5V supply voltage. The voltage controlled oscillator is packaged in a low cost, surface mount 16 leaded QSOP package with an exposed base for improved RF and thermal performance. The HMC398QS16G & HMC398QS16GE require no external components
11
VCOS & PLOs - SMT
Electrical Specifi cations, TA = +25° C, Vcc1, Vcc2 = +5.0V
Parameter Frequency Range Power Output SSB Phase Noise @ 100 kHz Offset, Vtune= +5V @ RF Output Tune Voltage Supply Current Tune Port Leakage Current (Vtune= 10V) Output Return Loss Harmonics/Subharmonics 1/2 3/2 2nd 5/2 2 -20 -30 -12 -40 4 30 1.5 Vtune Icc 1 (Digital) Icc 2 (RF) 1.0 65 260 10 RF Output Divided Output +3 -9 Min. Typ. 14.0 - 15.0 +7 -6 -105 10.0 Max. Units GHz dBm dBm dBc/Hz V mA mA µA dB dBc dBc dBc dBc MHz pp MHz/V MHz/°C
Pulling (into a 2.0:1 VSWR) Pushing @ Vtune= 5V Frequency Drift Rate
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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
HMC398QS16G / 398QS16GE
v02.0805
Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz
Frequency vs. Tuning Voltage, T= 25°C
15.4 OUTPUT FREQUENCY (GHz) 15.2 15 14.8 14.6 14.4 14.2 14 13.8 1 2 3 4 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS)
Vcc= 4.75V Vcc= 5.0V Vcc= 5.25V
Frequency vs. Tuning Voltage, Vcc= +5V
15.4 OUTPUT FREQUENCY (GHz) 15.2 15 14.8 14.6 14.4 14.2 14 13.8 1 2 3 4 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS)
+25 C +85 C -40 C
11
VCOS & PLOs - SMT
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Sensitivity vs. Tuning Voltage, Vcc= +5V
400 350 SENSITIVITY (MHz/VOLT) 300 250 200 150 100 50 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= +5V
15
OUTPUT POWER (dBm)
12
9
6
+25 C +85 C -40 C
3
0 1 2 3 4 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS)
SSB Phase Noise vs. Tuning Voltage
-60 SSB PHASE NOISE (dBc/Hz) -70 -80 -90 -100 -110 -120 1 2 3 4 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS)
10 kHz offset 100 kHz offset
SSB Phase Noise @ Vtune= 5V
0 -15 SSB PHASE NOISE (dBc/Hz) -30 -45 -60 -75 -90 -105 -120 -135 -150 3 10 10
4
+25 C +85 C -40 C
10
5
10
6
10
7
OFFSET FREQUENCY (Hz)
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
HMC398QS16G / 398QS16GE
v02.0805
Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz
Divided Output Power vs. Tuning Voltage, Vcc= +5V*
0 DIVIDED OUTPUT POWER (dBm) -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 1 2 3 4 5 6 7 8 9 10
+25 C +85 C -40 C
Divided Output Frequency vs. Tuning Voltage, Vcc= +5V
DIVIDED OUTPUT FREQUENCY (GHz) 1.94 1.92 1.9 1.88 1.86 1.84 1.82 1.8 1.78 1.76 1.74 1.72 1.7 1 2 3 4 5 6 7 8 9 10 TUNING VOLTAGE (VOLTS)
+25 C +85 C -40 C
11
VCOS & PLOs - SMT
TUNING VOLTAGE (VOLTS)
Divided Output 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
4
10
5
10
6
10
7
OFFSET FREQUENCY (Hz)
*Note: Tuning voltage must not drop below 1.0V for proper divider output.
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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
HMC398QS16G / 398QS16GE
v02.0805
Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz
Typical Supply Current vs. Vcc
Vcc (V) 4.75 5.0 5.25 Icc (mA) 300 325 350
Absolute Maximum Ratings
Vcc1, Vcc2 Storage Temperature Operating Temperature Vtune +5.5 -65 to +150 °C -40 to +85 °C 0 to 11V
Note: VCO will operate over full voltage range shown above.
ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS
Outline Drawing
11
VCOS & PLOs - SMT
Lead Finish Sn/Pb Solder 100% matte Sn MSL Rating MSL1 MSL1
[1]
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 HMC398QS16G HMC398QS16GE Package Body Material Low Stress Injection Molded Plastic RoHS-compliant Low Stress Injection Molded Plastic Package Marking [3] H398 XXXX H398 XXXX
[2]
[1] Max peak reflow temperature of 235 °C [2] Max peak reflow temperature of 260 °C [3] 4-Digit lot number XXXX
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
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HMC398QS16G / 398QS16GE
v02.0805
Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz
Pin Descriptions
Pin Number Function Description Interface Schematic
1
RFOUT
RF output (AC coupled).
2, 3, 4, 6, 8, 9, 10, 13, 14, 16
N/C
No Connection
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VCOS & PLOs - SMT
5
VTUNE
Control Voltage Input. Modulation port bandwidth dependent on drive source impedance.
7, 15
VCC1, VCC2
Supply Voltage, 5V
11
OUT
Divided Output
12
NOUT
Divided Output 180° output phase with pin 11.
GND
Package bottom has an exposed metal paddle that must be RF & DC grounded.
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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
HMC398QS16G / 398QS16GE
v02.0805
Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz
Evaluation PCB
11
VCOS & PLOs - SMT
List of Materials for Evaluation PCB 104711 [1]
Item J1 - J4 J5 - J6 C1 - C2 C3 - C6 U1 PCB [2] Description PCB Mount SMA RF Connector 2 mm DC Header 10 μF Tantalum Capacitor 1,000 pF Capacitor 0402 Pkg. HMC398QS16G / HMC398QS16GE VCO 104436 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.
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
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HMC398QS16G / 398QS16GE
v02.0805
Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz
Typical Application Circuit
11
VCOS & PLOs - SMT
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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
HMC398QS16G / 398QS16GE
v02.0805
Ku-Band MMIC VCO with DIVIDE-BY-8, 14 - 15 GHz
Notes:
11
VCOS & PLOs - 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
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