Download HMC984LP4E - Analog Devices

HMC984LP4E
v02.0112
DIGITAL PHASE-FREQUeNCY DETECTOR
Figure 13. HMC984LP4E & HMC983LP5E
PLL Performance at 2100.01 MHz [6]
Figure 14. HMC984LP4E & HMC983LP5E
-80
-100
PHASE NOISE (dBc/Hz)
PHASE NOISE (dBc/Hz)
-80
-100
-120
-140
Calculated PLL Mode B
Calculated PLL Integer Mode
-120
Measured Mode B
-140
Simulated Mode B
-160
-160
Simulated Integer Mode
Measured Integer Mode
-180
2
10
10
3
4
5
6
10
10
10
OFFSET FREQUENCY (Hz)
10
7
10
-180
2
10
8
Figure 15. HMC984LP4E & HMC983LP5E PLL
In Band Fractional Spurs vs. Offset Current [8]
4400 MHz
4700 MHz
5000 MHz
5
6
10
10
10
OFFSET FREQUENCY (Hz)
10
7
10
8
Mode B
-227
-40
-60
-60
-80
-80
-100
-228
Mode A
-229
Hi K Mode B
-230
Hi K Mode A
-231
-100
-232
-120
-600
-400
-200
0
200
400
OFFSET CURRENT (mA)
600
-30
800
Figure 17. HMC984LP4E & HMC983LP5E
PLL Flicker FOM vs. RF Input Power
Integer Mode
Hi K Integer Mode
-233
-120
-800
-25
-20
-15
-10
-5
RF INPUT POWER (dBm)
0
5
10
Figure 18. HMC984LP4E & HMC983LP5E
PLL Two-Way Auto Frequency Sweep [9]
7000
-264.5
-265
6900
Mode B
-265.5
Mode A
-266
-266.5
Hi K Mode A
Hi K Mode B
-267
Hi K Integer Mode
FREQUENCY (MHz)
FLICKER FOM (dBc/Hz)
4
-226
-20
-40
10
3
Figure 16. HMC984LP4E & HMC983LP5E
PLL Floor FOM vs. RF Input Power
FLOOR FOM (dBc/Hz)
INBAND SPUR AT 15 kHz OFFSET (dBc/Hz)
-20
PHASE NOISE (dBc/Hz)
FREQUENCY DIVIDERS & DETECTORS - SMT
-60
[6]
6800
6700
6600
-267.5
6500
-268
Integer Mode
6400
-268.5
-30
-25
-20
-15
-10
-5
RF INPUT POWER (dBm)
0
5
10
0
5
10
TIME (ms)
15
20
[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
6
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
978-250-3343 tel • 978-250-3373 fax • Order On-line at www.hittite.com
Application Support: [email protected]