HMC764LP6CE
v02.0110
FRACTIONAL-N SYNTHESIZER WITH
INTEGRATED VCO, 7.3 - 8.2 GHz
Features
• RF Bandwidth: 7.3 GHz to 8.2 GHz
• Fractional or Integer Modes
• Ultra Low Phase Noise
7.8 GHz; 50 MHz Ref.
-98 / -101 dBc/Hz @ 10 kHz (Frac / Int)
-140 dBc/Hz @ 1 MHz (Open Loop)
• Figure of Merit (FOM)
-221 / -226 dBc/Hz (Frac / Int)
• 24-bit Step Size, Resolution 3 Hz typ
• 225 MHz, 14-bit reference path input
• Direct FSK Modulation Mode
• Cycle Slip Prevention
• Read / Write Serial Port, Chip ID
• 40 Lead 6x6mm SMT Package: 36mm2
Typical Applications
6
PLLS w/ INTEGRATED VCO - SMT
• VSAT Radio
• Point-to-Point / Multi-Point Radio
• Test Equipment & Industrial Control
• Military End-Use
• Phased Array Applications
Functional Diagram
[1] Please refer to the pin description table for details
6-2
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
HMC764LP6CE
v02.0110
FRACTIONAL-N SYNTHESIZER WITH
INTEGRATED VCO, 7.3 - 8.2 GHz
General Description
The HMC764LP6CE 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 100 kHz to 220 MHz while the
advanced delta-sigma modulator design in the fractional synthesizer allows both ultra-fine step sizes and very low
spurious products. The highly integrated structure provides excellent phase noise performance over temperature,
shock and process. The HMC764LP6CE is packaged in a leadless QFN 6x6 mm surface mount package. The output
power is 15 dBm typical, making the HMC764LP6CE ideal for driving the LO port of many of Hittite’s Hi Linearity and
I/Q mixer products.
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 HMC764LP6CE from the “Search by Part
Number” pull down menu.
Electrical Specifi cations,
T
A
= +25° C; VCCVCO, VDDCP, VCCCP = +5V; AVCC, VCCPS
VDDPFD, AVDD, RVDD, DVDD, DVDDM, DVDDQ, VDDIO = +3.3V; AGND = DGND = 0V
Parameter
Condition
Min.
Typ.
Max.
Units
6
PLLS w/ INTEGRATED VCO - SMT
RF Output Characteristics
VCO Output Frequency Range
VCO Output Power
VCO Tuning Voltage
VCO Tuning Sensitivity
Frequency Pulling (into a 2:1 VSWR)
Frequency Pushing
Frequency Drift Rate
Sub Harmonic (1/2)
Harmonic (2
nd
)
Harmonic (3 )
VCO SSB Phase Noise @ 100 kHz Offset (Open Loop)
Synthesizer In-Band
SSB Phase Noise @ 10 kHz Offset (Frac/Int)
Synthesizer Normalized In-Band
SSB Phase Noise Floor (Frac/Int)
Synthesizer Fractional Spurs
[1]
Synthesizer Frequency Settling Time
(100 MHz Step)
16-Bit Divider Range (Int)
16-Bit Divider Range (Frac)
From 7.5 GHz to 7.6 GHz
Loop BW = 100 kHz
N Divider Ratio 2
16
+31
N Divider Ratio 2
16
-1
32
36
V
TUNE
= +5V
Fvco = 7.8 GHz
Fref = 50 MHz Fvco = 7.8 GHz
Loop BW = 100 kHz
rd
7.3
12
2
V
TUNE
= +5V
7.8
8.2
17
13
GHz
dBm
V
MHz/V
MHz pp
MHz/V
MHz/ °C
dBc
dBc
dBc
dBc/Hz
dBc/Hz
dBc/Hz
dBc
us
130
8
V
TUNE
= +5V
10
1
40
20
35
-116
-98 / -101
-221 / -226
-65
87
65567
65535
REF Input Characteristics
Max Ref Input Frequency (3.3V)
Min Ref Input Frequency
Ref Input Sensitivity
Max Ref Input
Ref Input Capacitance
14-Bit Ref Divider Range
16383
AC Coupled
DC Coupled
0
200
225
100
500
200
700
VDDIO
5
1
MHz
kHz
mV
pp
V
pF
[1] Actual spur level is dependent on loop parameters and will increase at division ratios closest to integer boundaries. Number listed is average
value.
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
6-3
HMC764LP6CE
v02.0110
FRACTIONAL-N SYNTHESIZER WITH
INTEGRATED VCO, 7.3 - 8.2 GHz
Electrical Specifi cations
(Continued)
Parameter
Condition
Min.
Typ.
Max.
Units
Phase Detector
Max Phase Detector Frequency (Frac)
Max Phase Detector Frequency (Int)
Min Phase Detector Frequency
70
140
105
160
100
MHz
MHz
kHz
Charge Pump
Max Output Current
Min Output Current
Charge Pump Noise
Input referred 50 MHz Ref.
2
500
-145
mA
μA
dBc/Hz
Logic Inputs
6
PLLS w/ INTEGRATED VCO - SMT
VIH Input High Voltage
VIL Input Low Voltage
VDDIO-0.4
0
VDDIO
0.4
V
V
Logic Outputs
VOH Output High Voltage
VOL Output Low Voltage
Serial Port Max Clock
VDDIO-0.4
0
50
VDDIO
0.4
V
V
MHz
Power Supply Voltages
Analog 3.3V Supplies: AVCC, VDDPFD, AVDD,
RVDD, VCCPS
Digital Internal Supplies: DVDD, DVDDQ, DVDDM
Digital I/O Supplies: VDDIO
Analog 5V Supplies: VCCVCO, VDDCP, VCCCP
Logic I/O
VCCCP must equal VDDCP
AVDD must equal DVDD
3
3
1.8
4.75
3.3
3.3
3.3
5
3.45
3.45
5.5
5.25
V
V
V
V
Power Supply Currents
Total Current Consumption (5V)
Total Current Consumption (3.3V)
Power Down Current
[1]
CSP Disabled
CSP Enabled
Measured with 10 GΩ meter
1.880
245
90
1
450
1.920
1.960
290
110
10
mA
mA
μA
μA
V
Bias Reference Voltage
[1] Refers only to the Synthesizer portion of the HMC764LP6CE
6-4
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
HMC764LP6CE
v02.0110
FRACTIONAL-N SYNTHESIZER WITH
INTEGRATED VCO, 7.3 - 8.2 GHz
SSB Phase Noise vs. Frequency,
Integer Mode
-60
-70
7300 MHz
7800 MHz
8200 MHz
SSB Phase Noise vs. Temperature
@ 7.8 GHz, Integer Mode
-60
-70
+25C
+85C
-40C
PHASE NOISE (dBc/Hz)
-80
-90
-100
-110
-120
-130
-140
-150
2
10
Temp = 25C
Fref = 50 MHz
Loop BW = 100 kHz
3
4
5
PHASE NOISE (dBc/Hz)
-80
-90
-100
-110
-120
-130
-140
-150
2
10
Fref = 50 MHz
Loop BW = 100 kHz
10
3
10
10
10
10
6
10
7
10
4
10
5
10
6
10
7
OFFSET FREQUENCY (Hz)
OFFSET FREQUENCY (Hz)
6
PLLS w/ INTEGRATED VCO - SMT
SSB Phase Noise Fractional
Spurs @ 7.802 GHz
-60
-70
SSB Phase Noise vs. Reference Freq. &
Loop BW @ 7.8 GHz, Integer Mode
-60
-70
PHASE NOISE (dBc/Hz)
PHASE NOISE (dBc/Hz)
-80
-90
-100
-110
-120
-130
-140
-150
2
10
Temp = 25C
Fref = 50 MHz
Loop BW = 100 kHz
3
4
5
6
7
-80
-90
-100
-110
-120
-130
-140
-150
2
10
Fref =10 MHz
Loop BW= 10 kHz
Fref =50 MHz
Loop BW=100 kHz
3
4
5
6
7
10
10
10
10
10
10
10
10
10
10
OFFSET FREQUENCY (Hz)
OFFSET FREQUENCY (Hz)
Example of Cycle Slip Prevention Hop
from 8.2 to 7.7 GHz
8.3
8.2
FREQUENCY (GHz)
8.1
8
7.9
7.8
7.7
7.6
-10
CSP ON
CSP OFF
Typical Reference Sensitivity
vs. Frequency, 3.3V
[1]
20
10
R = Max, +25C
R = Max, +85C
SENSITIVITY (dBm)
0
-10
-20
-30
-40
-50
R = 3, +25C
R = 3, +85C
0
10
20
30
40 50 60
TIME (USEC)
70
80
90
100
0
50
100
150
200
250
300
FREQUENCY (MHz)
[1] R refers to the reference path division ratio
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
6-5
HMC764LP6CE
v02.0110
FRACTIONAL-N SYNTHESIZER WITH
INTEGRATED VCO, 7.3 - 8.2 GHz
Frequency vs. Tuning Voltage, T= 25°C
9
OUTPUT FREQUENCY (GHz)
OUTPUT FREQUENCY (GHz)
8.5
8
7.5
7
6.5
6
0
1
2
3
4
5
6
7
8
9
10
11 12
13
TUNING VOLTAGE (VOLTS)
Vcc=4.75V
Vcc=5.0V
Vcc=5.25V
Frequency vs. Tuning Voltage, Vcc= +5V
9
8.5
8
7.5
7
6.5
6
0
1
2
3
4
5
6
7
8
9
10
11 12
13
TUNING VOLTAGE (VOLTS)
+25 C
+85 C
-40 C
6
PLLS w/ INTEGRATED VCO - SMT
600
500
SENSITIVITY (MHz/V)
400
300
200
100
0
0
1
2
3
Sensitivity vs. Tuning Voltage, Vcc= +5V
Output Power
vs. Tuning Voltage, Vcc= +5V
20
+25 C
+85 C
-40 C
OUTPUT POWER (dBm)
16
12
+25 C
+85 C
-40 C
8
4
0
4
5
6
7
8
9
10
11 12
13
0
1
2
3
4
5
6
7
8
9
10
11 12
13
TUNING VOLTAGE (VOLTS)
TUNING VOLTAGE (VOLTS)
Open Loop VCO SSB Phase Noise @
Vtune = +5V
0
SSB PHASE NOISE (dBc/Hz)
-20
-40
-60
-80
+25 C
+85 C
-40 C
Open Loop VCO SSB Phase Noise vs.
Tuning Voltage
-10
SSB PHASE NOISE (dBc/Hz)
-30
-50
-70
-90
10kHz offset
100kHz offset
-100
-120
-140
-160
2
10
-110
-130
10
3
10
4
10
5
10
6
1
2
3
4
5
6
7
8
9
10
11
12
13
OFFSET FREQUENCY (Hz)
TUNING VOLTAGE (VOLTS)
6-6
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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