English
Language : 

HMC765LP6CE_11 Datasheet, PDF (4/14 Pages) Hittite Microwave Corporation – FRACTIONAL-N PLL WITH INTEGRATED VCO, 7.8 - 8.8 GHz
◁
v03.0411
SSB Phase Noise vs. Frequency,
Integer Mode
-60
-70
7800 MHz
-80
8300 MHz
8800 MHz
-90
-100
-110
-120
-130
-140
Temp = 25C
Fref = 50 MHz
Loop BW = 100 kHz
-150
102
103
104
105
106
107
OFFSET FREQUENCY (Hz)
SSB Phase Noise Fractional
Spurs @ 8.302 GHz
-60
-70
-80
-90
-100
-110
-120
-130
-140
Temp = 25C
Fref = 50MHz
Loop BW = 100kHz
-150
102
103
104
105
106
107
OFFSET FREQUENCY (Hz)
Example of Cycle Slip Prevention Hop
from 8.6 to 8.1 GHz
8.7
8.6
8.5
CSP OFF
8.4
8.3
CSP ON
8.2
8.1
8
-10 0 10 20 30 40 50 60 70 80 90 100 110 120
TIME (μSEC)
HMC765LP6CE
FRACTIONAL-N PLL WITH
INTEGRATED VCO, 7.8 - 8.8 GHz
SSB Phase Noise vs. Temperature
@ 8.3 GHz, Integer Mode
-60
-70
+25C
-80
+85C
-40C
-90
-100
-110
-120
-130
-140
Fref = 50 MHz
Loop BW = 100 kHz
-150
102
103
104
105
106
107
OFFSET FREQUENCY (Hz)
SSB Phase noise vs. Reference Freq. &
Loop BW @ 8.3 GHz, Integer Mode
-60
-70
-80
-90
-100
-110
-120
-130
-140
Fref = 10MHz
Loop BW= 10kHz
Fref = 50MHz
Loop BW=100kHz
-150
102
103
104
105
106
107
OFFSET FREQUENCY (Hz)
7
Typical Reference Sensitivity
vs. Frequency, 3.3V [1]
20
R = Max, +25C
10
R = Max, +85C
0
-10
R = 3, +25C
R = 3, +85C
-20
-30
-40
-50
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: 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
7-4
 ▷