HMC764LP6CE
v03.0411
FRACTIONAL-N PLL WITH
INTEGRATED VCO, 7.3 - 8.2 GHz
SSB Phase Noise vs. Frequency,
SSB Phase Noise vs. Temperature
Integer Mode
@ 7.8 GHz, Integer Mode
-60
-60
-70
-70
7300 MHz
7800 MHz
8200 MHz
+25C
+85C
-40C
-80
-80
-90
-90
-100
-110
-120
-100
-110
-120
-130
-130
Temp = 25C
Fref = 50 MHz
Loop BW = 100 kHz
Fref = 50 MHz
-140
-140
-150
Loop BW = 100 kHz
-150
102
103
104
105
106
107
102
103
104
105
106
107
OFFSET FREQUENCY (Hz)
OFFSET FREQUENCY (Hz)
7
SSB Phase Noise Fractional
SSB Phase Noise vs. Reference Freq. &
Spurs @ 7.802 GHz
Loop BW @ 7.8 GHz, Integer Mode
-60
-60
-70
-80
-70
-80
-90
-90
-100
-110
-100
-110
-120
-120
Fref =10 MHz
Loop BW= 10 kHz
-130
-130
Temp = 25C
Fref = 50 MHz
Loop BW = 100 kHz
Fref =50 MHz
Loop BW=100 kHz
-140
-140
-150
-150
102
103
104
105
106
107
102
103
104
105
106
107
OFFSET FREQUENCY (Hz)
OFFSET FREQUENCY (Hz)
Example of Cycle Slip Prevention Hop
from 8.2 to 7.7 GHz
Typical Reference Sensitivity
vs. Frequency, 3.3V [1]
20
8.3
R = Max, +25C
R = Max, +85C
10
8.2
8.1
0
CSP OFF
-10
8
R = 3, +25C
R = 3, +85C
CSP ON
7.9
-20
-30
-40
-50
7.8
7.7
7.6
0
50
100
150
200
250
300
-10
0
10 20 30 40 50 60 70 80 90 100
TIME (USEC)
FREQUENCY (MHz)
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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
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