Datasheet

Data Sheet ADF4159
Rev. D | Page 9 of 36
TYPICAL PERFORMANCE CHARACTERISTICS
–180
–160
–140
–120
–100
–80
–60
–40
100 1k 10k 100k 1M 10M 100M
PHASE NOISE (dBc/Hz)
FREQUENCY OFFSET (Hz)
10849-106
Figure 6. Phase Noise at 12.002 GHz, f
PFD
= 100 MHz, I
CP
= 2.5 mA,
Loop Bandwidth = 250 kHz, Bleed Current = 11.03 µA
11.98
11.99
12.00
12.01
12.02
12.03
12.04
12.05
12.06
0 50 100 150 200
FREQUENCY (GHz)
TIME (µs)
10849-107
Figure 7. Sawtooth Ramp, f
PFD
= 100 MHz, I
CP
= 2.5 mA,
Loop Bandwidth = 250 kHz, CLK
1
= 3, CLK
2
= 26, DEV = 1024,
DEV_OFFSET = 8, Number of Steps = 64
11.98
11.99
12.00
12.01
12.02
12.03
12.04
12.05
12.06
0 50 100 150 200
FREQUENCY (GHz)
TIME (µs)
10849-108
Figure 8. Sawtooth Ramp with Delay, f
PFD
= 100 MHz, I
CP
= 2.5 mA,
Loop Bandwidth = 250 kHz, CLK
1
= 3, CLK
2
= 26, DEV = 1024,
DEV_OFFSET = 8, Number of Steps = 64, Delay Word = 1000
11.98
11.99
12.00
12.01
12.02
12.03
12.04
12.05
12.06
0
20 40
60
80
100
FREQUENCY (GHz)
TIME (µs)
10849-109
Figure 9. Sawtooth Burst, f
PFD
= 100 MHz, I
CP
= 2.5 mA,
Loop Bandwidth = 250 kHz, CLK
1
= 3, CLK
2
= 26, DEV = 1024,
DEV_OFFSET = 8, Number of Steps = 64
11.98
11.99
12.00
12.01
12.02
12.03
12.04
12.05
12.06
0 100 200 300 400 500
FREQUENCY (GHz)
TIME (µs)
10849-110
Figure 10. Dual Sawtooth Ramp, f
PFD
= 100 MHz, I
CP
= 2.5 mA,
Loop Bandwidth = 250 kHz, CLK
1
= 3; First Ramp: CLK
2
= 26, DEV = 1024,
DEV_OFFSET = 8, Number of Steps = 64; Second Ramp: CLK
2
= 52,
DEV = 1024, DEV_OFFSET = 7, Number of Steps = 64
11.99
12.00
12.01
12.02
12.03
12.04
12.05
12.06
0 100 200 300 400 500
FREQUENCY (GHz)
TIME (µs)
10849-111
Figure 11. Triangle Ramp, f
PFD
= 100 MHz, I
CP
= 2.5 mA,
Loop Bandwidth = 250 kHz, CLK
1
= 3, CLK
2
= 26, DEV = 1024,
DEV_OFFSET = 8, Number of Steps = 64