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HMC984LP4E Datasheet, PDF (6/34 Pages) Hittite Microwave Corporation – DIGITAL PHASE-FREQUeNCY DETECTOR
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HMC984LP4E
v02.0112
DIGITAL PHASE-FREQUeNCY DETECTOR
Figure 13. HMC984LP4E & HMC983LP5E
PLL Performance at 2100.01 MHz [6]
-60
-80
-100
-120
-140
-160
-180
102
103
104
105
106
107
108
OFFSET FREQUENCY (Hz)
Figure 14. HMC984LP4E & HMC983LP5E [6]
-80
-100
-120
Calculated PLL Mode B
Calculated PLL Integer Mode
-140
Measured Mode B
Simulated Mode B
-160
Simulated Integer Mode
Measured Integer Mode
-180
102
103
104
105
106
107
108
OFFSET FREQUENCY (Hz)
Figure 15. HMC984LP4E & HMC983LP5E PLL
In Band Fractional Spurs vs. Offset Current [8]
-20
-20
4400 MHz
4700 MHz
-40
5000 MHz
-40
-60
-60
-80
-80
-100
-100
-120
-120
-800 -600 -400 -200
0
200 400 600 800
OFFSET CURRENT (mA)
Figure 16. HMC984LP4E & HMC983LP5E
PLL Floor FOM vs. RF Input Power
-226
-227
Mode B
-228
Mode A
-229
Hi K Mode B
-230
-231
Hi K Mode A
-232
Integer Mode
Hi K Integer Mode
-233
-30
-25
-20
-15
-10
-5
0
RF INPUT POWER (dBm)
5
10
Figure 17. HMC984LP4E & HMC983LP5E
PLL Flicker FOM vs. RF Input Power
-264.5
Figure 18. HMC984LP4E & HMC983LP5E
PLL Two-Way Auto Frequency Sweep [9]
7000
-265
-265.5
-266
Mode B
Mode A
6900
6800
-266.5
Hi K Mode B
Hi K Mode A
6700
-267
-267.5
Hi K Integer Mode
-268
Integer Mode
-268.5
-30
-25
-20
-15
-10
-5
0
RF INPUT POWER (dBm)
5
10
6600
6500
6400
0
5
10
15
20
TIME (ms)
[6] Crystal frequency=100 MHz, PFD frequency=50 MHz, CP current=2.5 mA, CP offset current=280 µA, Loop bandwidth = 87 kHz, PLL Mode
[7] Measured at 7 GHz in Integer Mode and 7.001 GHz in Fractional mode B. PD Frequency = 50 MHz, and loop filter BW = 87 kHz. Simulated results
were obtained using Hittite PLL Design software.
[8] Active Loop filter bandwidth 150 kHz, measured at 10 kHz offset, PFD Frequency=50 MHz. Offset polarity should be positive for inverting
configurations and negative otherwise.
[9] 50 MHz PFD
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
6
978-250-3343 tel • 978-250-3373 fax • Order On-line at www.hittite.com
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