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参数资料
| 型号： | ADF4208BRUZ-RL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 24/24页 |
| 文件大小： | 0K |
| 描述： | IC PLL FREQ SYNTHESIZER 20TSSOP |
| 标准包装： | 2,500 |
| 类型： | 时钟/频率合成器，RF |
| PLL： | 是 |
| 输入： | CMOS，TTL |
| 输出： | 时钟 |
| 电路数： | 1 |
| 比率 - 输入:输出： | 3:1 |
| 差分 - 输入:输出： | 是/无 |
| 频率 - 最大： | 2GHz |
| 除法器/乘法器： | 无/无 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 带卷 (TR) |
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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