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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
PLLS WITH INTEGRATED VCO - SMT
1
HMC778LP6CE
v01.0112
FRACTIONAL-N PLL WITH
INTEGRATED VCO, 9.6 - 10.8 GHz
Functional Diagram
[1] Please refer to the pin description table for details
Features
• RF Bandwidth: 9.6 GHz to 10.8 GHz
• Fractional or Integer Modes
• Ultra Low Phase Noise
10.2 GHz; 50 MHz Ref.
-106 / -102 dBc/Hz @ 10 kHz (Int / frac)
-140 dBc/Hz @ 1 MHZ (Open Loop)
• Figure of Merit (FOM)
-230 / -227 dBc/Hz (int / Frac)
• 24-bit Step Size, Resolution 3 Hz typ
• 350 MHz, 14-bit reference path input
• Frequency And Phase Modulation
• Integrated Frequency Sweeper
• Triggered Frequency Hopping
• External Triggering
• 40 Lead 6 x 6 mm SMT Package: 36 mm
Typical Applications
• VSAT Radio
• Microwave Point-To-Point Radios
• Test Equipment & Industrial Control
• Military End-Use
• Phased Array Applications
• FMCW Radar Systems
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
PLLS WITH INTEGRATED VCO - SMT
2
HMC778LP6CE
v01.0112
FRACTIONAL-N PLL WITH
INTEGRATED VCO, 9.6 - 10.8 GHz
Parameter Condition Min. Typ. Max. Units
RF Output Characteristics
VCO Output Frequency Range 9.6 10.2 10.8 GHz
VCO Output Power [1] 9dBm
VCO Tuning Voltage 213 V
VCO Tuning Sensitivity VTUNE = 6V 165 MHz/V
Frequency Pulling into a 2:1 VSWR 5 MHz pp
Frequency Pushing VTUNE = 5V 30 MHz/V
Frequency Drift Rate 1.2 MHz/ °C
Sub Harmonic (1/2) 33 dBc
Harmonic (2nd)25 dBc
Harmonic (3rd)35 dBc
VCO SSB Phase Noise @ 100 kHz Offset (Open
Loop)
VTUNE = +5V
Fvco = 10 GHz -110 dBc/Hz
Synthesizer In-Band SSB Phase Noise
@ 10 kHz Offset (Integer / Fractional)
Fref = 50 MHz Fvco = 10.2 GHz
Loop BW = 100 kHz -106/-102 dBc/Hz
Synthesizer Noise Floor, Figure Of Merit
(Integer / Fractional) -230 / -227 dBc/Hz
Synthesizer Fractional Spurs [2] -65 -45 dBc
Synthesizer Frequency Settling Time
(100 MHz Step)
10.2 GHz to 10.3 GHz
Loop BW = 100 kHz, 10° 195 s
RF/2 Divider Range
> 4GHz Integer Mode 16 bit, even values only 32 131,070
< 4GHz Integer Mode 16 bit, all values 16 65,535
> 4GHz Fractional Mode 16 bit 40 131,065
< 4GHz Fractional Mode 16 bit 20 65,531
Electrical Specications, TA = +25° C; VCCVCO, VDDLS, VPPCPA = +5V;
RVDD, AVDD, VCCPS, VCCHF, VDDPD, DVDD, VDDIO = + 3.3V
General Description
The HMC778LP6CE is a fully functioned Fractional-N Phase-Locked-Loop (PLL) Frequency Synthesizer with an
integrated Voltage Controlled Oscillator (VCO). The input reference frequency range is DC to 350 MHz while the
advanced delta-sigma modulator design in the fractional synthesizer allows both ultra-ne step sizes and very low
spurious products. The highly integrated structure provides excellent phase noise performance over temperature,
shock and process. In addition, the HMC778LP6CE offers frequency sweep and modulation features, external
triggering, double-buffering, exact frequency control, phase modulation and more. The HMC778LP6CE is packaged
in a leadless QFN 6 x 6 mm surface mount package.
For theory of operation and register map refer to the “PLLs w/ Integrated VCO - Microwave VCOs” Operating Guide.
To view the Operating Guide, please visit www.hittite.com and choose HMC778LP6CE from the “Search by Part
Number” pull down menu.
1] See power output vs.tuning voltage graph for power slope.
[2] Actual spur level is dependent on loop parameters and will increase at division ratios closest to integer boundaries.
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
PLLS WITH INTEGRATED VCO - SMT
3
HMC778LP6CE
v01.0112
FRACTIONAL-N PLL WITH
INTEGRATED VCO, 9.6 - 10.8 GHz
Parameter Condition Min. Typ. Max. Units
REF Input Characteristics
Frequency Range (3.3V) DC 50 350 MHz
Power From 50 Source With off chip 100
termination 6dBm
Return Loss -16 -8 dBm
Ref Divider Range (14-Bit) 1 16,383
Phase Detector Rate
Integer Mode DC 50 115 MHz
Fractional Mode A DC 50 80 MHz
Fractional Mode B DC 50 100 MHz
Charge Pump
CP Output Current
20µA steps
CP_gain = CP_current ÷ 2∏
(amps/rad)
0.02 2.5 mA
CP HiK see “Charge Pump Gain”
section of “Operation Guide” 3.5 6mA
Logic Inputs
Switching Threshold (Vsw) VIH/VIL within 50mV of Vsw 38 47 54 %VDDIO
Logic Outputs
VOH Output High Voltage VDDIO V
VOL Output Low Voltage 0 V
Output Impedance: Pull Up VDDIO = 3.3V 115 150 180
Output Impedance: Pull Dn VDDIO = 3.3V 130 135 210
DC Load 1.5 mA
Digital Output Driver Delay
SCK to Digital Output Delay 1.7 ns with a 3 pF load 0.5ns + 0.2ns/pF
8.2ns + 0.2ns/pF ns
Power Supply Voltages
VCCVCO - VCO Supply 4.75 5.0 5.25 V
RVDD, AVDD, VCCPS, VCCHF,
VDDPD - Analog Supply all must be equal 2.7 3.3 3.5 V
DVDD, VDDIO - Digital Supply both must be equal 2.7 3.3 3.5 V
VDDLS, VPPCPA - Charge pump both must be equal 4.7 5.0 5.2 V
Power Supply Currents
5.0V - VCO Current Consumption 230 265 290 mA
3.3V - PLL Current Consumption all modes 34 54 95 mA
5.0V - Charge Pump Current Consumption all modes 3 7 16 mA
Power Down Current except VCO 100 µA
Bias Reference Voltage (Pin 20) Measured with 10 G meter 1.88 1.92 1.96 V
Electrical Specications (Continued)
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
PLLS WITH INTEGRATED VCO - SMT
4
HMC778LP6CE
v01.0112
FRACTIONAL-N PLL WITH
INTEGRATED VCO, 9.6 - 10.8 GHz
SSB Phase Noise vs. Frequency,
Integer Mode, Fref = 50 MHz,
Loop BW = 100 kHz
SSB Phase Noise vs. Temperature
@ 10.20 GHz, Integer Mode,
Fref = 50 MHz, Loop BW = 100 kHz
SSB Phase Noise vs. Reference Freq. &
Loop BW @ 10.20 GHz, Integer Mode
SSB Phase Noise Fractional Spurs @
10.21 GHz, Fref = 10 MHz,
Loop BW = 10 kHz
Reference Input Sensitivity,
Square Wave, 50
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
102103104105106107
9.6 GHz
10.2 GHz
10.8 GHz
OFFSET FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
102103104105106107
Fref = 10MHz, Loop BW = 10kHz
Fref = 50MHz, Loop BW = 100kHz
OFFSET FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
102103104105106107
OFFSET FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
-235
-230
-225
-220
-215
-15 -10 -5 0 5 10
14 MHz sq
25 MHz sq
50 MHz sq
100 MHz sq
FLOOR FOM (dBc/Hz)
REFERENCE POWER (dBm)
100 MHz
14 MHz
50 MHz
25 MHz
-170
-160
-150
-140
-130
-120
-110
-100
-90
-80
-70
102103104105106107
+ 25C
+ 85C
- 40C
OFFSET FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
Reference Input Sensitivity,
Sinusoid Wave, 50
-235
-230
-225
-220
-215
-210
-205
-200
-20 -15 -10 -5 0 5
REFERENCE POWER (dBm)
FLOOR FOM (dBc/Hz)
14 MHz
25 MHz
50 MHz
100 MHz
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
PLLS WITH INTEGRATED VCO - SMT
5
HMC778LP6CE
v01.0112
FRACTIONAL-N PLL WITH
INTEGRATED VCO, 9.6 - 10.8 GHz
Open Loop VCO SSB Phase Noise vs.
Tuning Voltage
Open Loop VCO SSB Phase Noise,
Vtune = +5V
-180
-160
-140
-120
-100
-80
-60
-40
-20
0
102103104105106107
+25C
+85C
-40C
SSB PHASE NOISE (dBc/Hz)
OFFSET FREQUENCY (Hz)
-130
-120
-110
-100
-90
-80
-70
012345678910111213
10khz OFFSET
100khz OFFSET
SSB PHASE NOISE (dBc/Hz)
TUNING VOLTAGE (Vdc
Frequency vs. Tuning Voltage,
Vcc = +5V
Sensitivity vs. Tuning Voltage,
Vcc = +5V
Frequency vs. Tuning Voltage,
T = 25°C
Output Power vs. Tuning Voltage,
Vcc = +5V
7.5
8
8.5
9
9.5
10
10.5
11
11.5
012345678910111213
+25C
+85C
-40C
OUTPUT FREQUENCY (GHz)
TUNING VOLTAGE (Vdc)
0
2
4
6
8
10
12
14
16
012345678910111213
+ 25C
+ 85C
- 40C
OUTPUT POWER (dBm)
TUNING VOLTAGE (Vdc)
0
100
200
300
400
500
600
700
012345678910111213
+25C
+85C
-40C
SENSITIVITY (MHz/Volt)
TUNING VOLTAGE (Vdc)
7.5
8
8.5
9
9.5
10
10.5
11
11.5
012345678910111213
Vcc= 4.75V
Vcc= 5.00V
Vcc= 5.25V
OUTPUT FREQUENCY (GHz)
TUNING VOLTAGE (Vdc)
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
PLLS WITH INTEGRATED VCO - SMT
6
HMC778LP6CE
v01.0112
FRACTIONAL-N PLL WITH
INTEGRATED VCO, 9.6 - 10.8 GHz
Outline Drawing
Part Number Package Body Material Lead Finish MSL Rating Package Marking [1]
HMC778LP6CE RoHS-compliant Low Stress Injection Molded Plastic 100% matte Sn MSL3 H778
XXXX
[1] 4-Digit lot number XXXX
Package Information
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS].
3. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
4. PAD BURR LENGTH SHALL BE 0.15 mm MAXIMUM.
PAD BURR HEIGHT SHALL BE 0.05 mm MAXIMUM.
5. PACKAGE WARP SHALL NOT EXCEED 0.05 mm.
6. ALL GROUND LEADS AND GROUND PADDLE MUST
BE SOLDERED TO PCB RF GROUND.
7. REFER TO HITTITE APPLICATION NOTE FOR
SUGGESTED PCB LAND PATTERN.
Absolute Maximum Ratings
VCCVCO1, VCCVCO2 +5.5V
Vtune 0 to +15V
RVDD, AVDD, VCCPS, VCCHF,
VDDPD -0.3V to +3.6V
DVDD, VDDIO -0.3V to +3.6V
VDDLS, VPPCPA -0.3V to +5.5V
Digital Load 1 K min.
Digital Input 1.4V to 1.7V min. rise time 20 ns
Digital Input Voltage Range -0.25V to VDDIO + 0.5V
Storage Temperature Range -65° C to +125° C
ESD Sensitivity (HBM) Class 1A
Reliability Information
Junction Temperature To Maintain
1 Million Hours MTTF 135 °C
Nominal Junction Temperature (T = +85°C) 123°C
Thermal Resistance
(Junction to GND Paddle, 5V Supply) 24.7 °C/W
Operating Temperature -40 to +85°C
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
PLLS WITH INTEGRATED VCO - SMT
7
HMC778LP6CE
v01.0112
FRACTIONAL-N PLL WITH
INTEGRATED VCO, 9.6 - 10.8 GHz
Pin Descriptions
Pin Number Function Description
1, 9 - 14, 22, 23, 26, 35 N/C No connection. These pins may be connected to RF/DC ground.
Performance will not be affected.
2 - 5, 37, 39 GND [1] Pins must be connected to RF/DC ground
7GND This pin and package bottom must be connected to RF/DC ground
6VTUNE Control voltage input. Modulation port bandwidth
dependent on drive source impedance.
8VCCVCO2 + 5V power supply for VCO.
15 VCCHF Analog power supply for RF buffer. Nominal + 3.3V, 6 mA max.
16 VDDLS
Power supply for PFD to CP level shifters.
Nominal + 5V, 5 mA max., Fpd dependent.
17 VPPCPA Power Supply for the charge pump. Nominal + 5V, 10 mA Max.
18 CP Charge pump output
19 AVDD Power Supply for analog bias generation. Nominal + 3.3V, 2 mA Max.
20 BIAS [2] External bypass decoupling for precision bias circuits,
1.920V ±2 mV is generated internally
21 RVDD Power Supply for Reference Path.
Nominal + 3.3V, 15 mA Max., reference dependent
24 XREFP Reference input. DC bias is generated internally.
Normally AC coupled externally.
25 VDDPD Power supply for phase detector. Nominal + 3.3V.
Decoupling for this supply is critical. 5 mA max., Fpd dependent.
27 CEN CMOS input, hardware chip enable.
28 SEN CMOS input, serial port latch enable.
29 SCK CMOS input, serial port clock.
30 SDI CMOS input, serial port data.
31 DVDD Power supply for digital. Nominal + 3.3V, 25 mA max., Fpd dependent.
32 VDDIO Power supply for digital I/O.
Nominal + 3.3V, 8 mA max. (only when driving LD_SDO)
33 LD_SDO CMOS output. General purpose output;
lock detect, serial data out, others, selectable
34 VCCPS Power supply for RF divider. Nominal + 3.3V, 35 mA max.
36 TRIG CMOS input. External trigger.
38 RFOUT RF output (AC coupled).
40 VCCVCO1 Power Supply for VCO. Nomimal +5V, High Current, VCO dependent
[1] Pins are not connected internally, however, pins must be connected to GND to maintain product family pin for pin compatibility.
[2] BIAS ref voltage (pin 20) cannot drive an external load, and must be measured with a 10 GOhm meter such as Agilent 34410A; a typical
10 Mohm DVM will read erroneously.
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
PLLS WITH INTEGRATED VCO - SMT
8
HMC778LP6CE
v01.0112
FRACTIONAL-N PLL WITH
INTEGRATED VCO, 9.6 - 10.8 GHz
Evaluation PCB
The circuit board used in the application should use RF circuit design techniques. Signal lines should have
50 Ohm impedance while the package ground leads and exposed paddle 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.
Item Contents Part Number
Evaluation PCB Only HMC778LP6CE Evaluation PCB 130371-HMC778LP6CE
Evaluation Kit
HMC778LP6CE Evaluation PCB
USB Interface Board
6’ USB A Male to USB B Female Cable
CD ROM (Contains User Manual, Evaluation Software, Hittite PLL Design Software)
EKIT01-HMC778LP6CE
Evaluation Order Information
Evaluation PCB Schematic
To view this Evaluation PCB Schematic please visit www.hittite.com and choose HMC778LP6CE from the
“Search by Part Number” pull down menu to view the product splash page.
