REV. 0
ADF4216/ADF4217/ADF4218
–8–
TEMPERATURE – ⴗC
100–40 0 20 40 60 80
–100
FIRST REFERENCE SPUR – dBc
–70
–80
–90
–60
–20
V
DD
= 3V
V
P
= 5V
TPC 13. ADF4218 RF Reference Spurs vs. Temperature
(900 MHz, 200 kHz, 20 kHz)
TUNING VOLTAGE – Volts
50234
–105
FIRST REFERENCE SPUR – dBc
–75
–85
–95
–5
1
V
DD
= 3V
V
P
= 5V
–65
–35
–45
–55
–15
–25
TPC 14. ADF4218 RF Reference Spurs vs. V
TUNE
(900 MHz,
200 kHz, 20 kHz)
–2kHz –1kHz 900MHz +1kHz +2kHz
V
DD
= 3V, V
P
= 5V
I
CP
= 4.375mA
PFD FREQUENCY = 200kHz
LOOP BANDWIDTH = 20kHz
RES. BANDWIDTH = 10Hz
VIDEO BANDWIDTH = 10Hz
SWEEP = 1.9 SECONDS
AVERAGES = 19
–89dBc/Hz
REFERENCE
LEVEL = –4.2dBm
OUTPUT POWER – dB
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
TPC 15. ADF4218 IF Phase Noise (540 MHz, 200 kHz, 20 kHz)
10dB/DIVISION R
L
= –40dBc/Hz RMS NOISE = 0.52ⴗ
100Hz FREQUENCY OFFSET FROM 900MHz CARRIER 1MHz
0.60ⴗ rms
PHASE NOISE – dBc/Hz
–90
–80
–70
–60
–50
–40
–100
–110
–120
–130
–140
TPC 16. ADF4218 IF Integrated Phase Noise (540 MHz,
200 kHz, 20 kHz)
–400kHz –200kHz 900MHz +200kHz +400kHz
V
DD
= 3V, V
P
= 5V
I
CP
= 5mA
PFD FREQUENCY = 200kHz
LOOP BANDWIDTH = 20kHz
RES. BANDWIDTH = 10Hz
VIDEO BANDWIDTH = 10Hz
SWEEP = 2.5 SECONDS
AVERAGES = 30
REFERENCE
LEVEL = –4.2dBm
–88.0dBc
OUTPUT POWER – dB
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
TPC 17. ADF4218 IF Reference Spurs (540 MHz, 200 kHz,
20 kHz)
PHASE DETECTOR FREQUENCY – kHz
1 10000100 1000
–180
PHASE NOISE – dBc/Hz
–140
–150
–160
–170
–120
–130
10
V
DD
= 3V
V
P
= 5V
TPC 18. ADF4218 IF Phase Noise vs. PFD Frequency
