參數(shù)資料
型號: ADF4208BRUZ
廠商: Analog Devices Inc
文件頁數(shù): 24/24頁
文件大?。?/td> 0K
描述: IC PLL FREQ SYNTHESIZER 20TSSOP
標(biāo)準(zhǔn)包裝: 75
類型: 時鐘/頻率合成器,RF
PLL:
輸入: CMOS,TTL
輸出: 時鐘
電路數(shù): 1
比率 - 輸入:輸出: 3:1
差分 - 輸入:輸出: 是/無
頻率 - 最大: 2GHz
除法器/乘法器: 無/無
電源電壓: 2.7 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 管件
ADF4206/ADF4208
Rev. A | Page 9 of 24
FREQUENCY (Hz)
400k
–400k
–200k
900M
200k
O
UT
P
UT
P
O
W
E
R
(
d
B)
0
–90
–80
–70
–60
–30
–20
–50
–40
–10
–100
VDD = 3V, VP = 5V
ICP = 5mA
PFD FREQUENCY = 200kHz
LOOP BANDWIDTH = 35kHz
RES. BANDWIDTH = 1kHz
VIDEO BANDWIDTH = 1kHz
SWEEP = 2.5 SECONDS
AVERAGES = 30
–89.3dBc
REFERENCE LEVEL =
–4.2dBm
01
03
6-
0
11
Figure 11. ADF4208 RF1 Reference Spurs (900 MHz, 200 kHz, 35 kHz)
FREQUENCY (Hz)
400
–400
–200
1750M
200
O
UT
P
UT
P
O
W
E
R
(
d
B)
0
–90
–80
–70
–60
–30
–20
–50
–40
–10
–100
VDD = 3V, VP = 5V
ICP = 5mA
PFD FREQUENCY = 30kHz
LOOP BANDWIDTH = 3kHz
RES. BANDWIDTH = 10kHz
VIDEO BANDWIDTH = 10kHz
SWEEP = 477ms
AVERAGES = 10
–75.2dBc/Hz
REFERENCE LEVEL =
–8.0dBm
0
103
6-
0
12
Figure 12. ADF4208 RF1 Phase Noise (1750 MHz, 30 kHz, 3 kHz)
FREQUENCY OFFSET FROM 1750MHz CARRIER
–40
z
H
M
1
z
H
0
1
P
HASE
NO
IS
E
(d
Bc/
H
z)
–50
–60
–70
–80
–90
–100
–110
–120
–130
–140
1kHz
10kHz
100kHz
1.6 rms
10dB/DIVISION
RL = –40dBc/Hz
01
03
6-
0
13
Figure 13. ADF4208 RF1 Integrated Phase Noise (1750 MHz, 30 kHz, 3 kHz)
FREQUENCY (Hz)
80k
–400k
–200k
1750M
40k
O
UT
P
UT
P
O
W
E
R
(
d
B)
0
–90
–80
–70
–60
–30
–20
–50
–40
–10
–100
VDD = 3V, VP = 5V
ICP = 5mA
PFD FREQUENCY = 30kHz
LOOP BANDWIDTH = 3kHz
RES. BANDWIDTH = 3Hz
VIDEO BANDWIDTH = 3Hz
SWEEP = 255 SECONDS
POSITIVE PEAK
DETECT MODE
–79.6dBc
REFERENCE LEVEL =
–5.7dBm
01
03
6-
01
4
Figure 14. ADF4208 RF1 Reference Spurs (1750 MHz, 30 kHz, 3 kHz)
–120
–130
–140
–150
–160
–170
–180
1
100
1000
10000
10
P
HAS
E
NO
IS
E
(d
Bc/
H
z)
PHASE DETECTOR FREQUENCY (kHz)
VDD = 3V
VP = 5V
ADF4206
ADF4208
01
03
6-
01
5
Figure 15. ADF4208 RF1 Phase Noise vs. PFD Frequency
TEMPERATURE (°C)
100
–40
0
20
40
60
80
–100
P
H
A
S
E
NO
IS
E
(d
B
c/
H
z)
–70
–80
–90
–60
–20
VDD = 3V
VP = 3V
01
036
-016
Figure 16. ADF4208 RF1 Phase Noise vs. Temperature
(900 MHz, 200 kHz, 20 kHz)
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