參數(shù)資料
型號(hào): ADF4218BRU
廠商: ANALOG DEVICES INC
元件分類: XO, clock
英文描述: Dual RF PLL Frequency Synthesizers
中文描述: PLL FREQUENCY SYNTHESIZER, 2500 MHz, PDSO20
封裝: TSSOP-20
文件頁(yè)數(shù): 8/20頁(yè)
文件大?。?/td> 227K
代理商: ADF4218BRU
REV. 0
ADF4216/ADF4217/ADF4218
–8–
TEMPERATURE
C
100
40
0
20
40
60
80
100
F
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
5
0
2
3
4
105
F
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
O
100
90
80
70
60
50
40
30
20
10
0
TPC 15. ADF4218 IF Phase Noise (540 MHz, 200 kHz, 20 kHz)
10–
40
R
L
=
40dBc/Hz
RMS NOISE = 0.52
100Hz
FREQUENCY OFFSET FROM 900MHz CARRIER
1MHz
0.60 rms
P
90
80
70
60
50
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
O
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
10000
100
1000
180
P
140
150
160
170
120
130
10
V
DD
= 3V
V
P
= 5V
TPC 18. ADF4218 IF Phase Noise vs. PFD Frequency
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