EVAL01-HMC830LP6GE HITTITE [Hittite Microwave Corporation], EVAL01-HMC830LP6GE Datasheet - Page 8

• Manufacturer Part Number: EVAL01-HMC830LP6GE
• Description: FRACTIONAL-N PLL WITH INTEGRATED VCO 25 - 3000 MHz
• Manufacturer: HITTITE [Hittite Microwave Corporation]

For price, delivery, and to place orders: Hittite Microwave Corporation,20 Alpha Road, Chelmsford, MA 01824
Figure 19. Worst Spur, Fixed 50 MHz
Reference, Output Freq. = 2000.1 MHz
Figure 21. Worst Spur, Fixed vs. Tunable
Reference
[9] Capability of HMC830LP6GE to generate low frequencies (as low as 25 MHz), enables the HMC830LP6GE to be used as a tunable reference
[10] The graph is generated by observing, and plotting, the magnitude of only the worst spur (largest magnitude), at any offset, at each output
[11] Phase noise performance of the HMC830LP6GE when used as a tunable reference source. HMC830LP6GE is operating at 3 GHz/30, 3
Loop Filter Configuration Table
-100
-110
-120
Loop Filter
BW (kHz)
-100
-120
-140
-160
-180
-50
-60
-70
-80
-90
2GHz +1kHz
source into another HMC830LP6GE, which maximizes spur performance of the second HMC830LP6GE. Please see
Application Information”
frequency, while using a fixed 50 MHz reference and a tunable reference tuned to 47.5 MHz. See
more details.
GHz/54, and 1.55 GHz/62 for the 100 MHz, 55.55 MHz, and 25 MHz curves respectively. 25 MHz output is 50 MHz low pass filtered prior to input
to second PLL. 100 MHz and 55.55 MHz curves were not filtered.
-20
-40
-60
-80
0
0.1
90
74
1
2GHz +10kHz
[10]
(pF)
150
270
Phone: [phone]
C1
Fixed 50 MHz Reference
Tunable Reference
10
OUTPUT FREQUENCY
for more information.
(nF)
OFFSET (kHz)
3.9
2GHz +100kHz
C2
27
Application Support: Phone: [phone] or [e-mail]
100
(pF)
220
C3
56
1000
2GHz +1000kHz
(pF)
220
C4
56
v00.0311
10000
Fax: [phone]
0.82
FRACTIONAL-N PLL WITH INTEGRATED VCO
2GHz +10000kHz
(kΩ)
1.2
R2
100000
[9]
(kΩ)
R3
1
1
(kΩ)
R4
1
1
Figure 20. Worst Spur, Tunable Reference,
Output Frequency = 2000.1 MHz
Figure 22. Low Frequency Performance
-120
-130
-140
-150
-160
-170
-100
-120
-140
-160
-180
Loop Filter Design
-20
-40
-60
-80
Order On-line at www.hittite.com
0
0.1
0.1
1
1
“HMC830LP6GE Application Information”
10
10
HMC830LP6GE
OFFSET (kHz)
OFFSET (kHz)
100
100
Carrier Frequency = 25 MHz
Carrier Frequency = 55.55 MHz
Carrier Frequency = 100 MHz
25 - 3000 MHz
“HMC830LP6GE
1000
1000
10000
10000
[9]
100000
100000
for
[11]
7 - 8
7