參數(shù)資料
型號： EVAL-ADF4154EB1
廠商： Analog Devices, Inc.
元件分類： 通信、網(wǎng)絡(luò)模塊及開發(fā)工具
英文描述： Fractional-N Frequency Synthesizer
中文描述： 分數(shù)N頻率合成器
文件頁數(shù)： 7/20頁
文件大?。?/td> 470K
代理商： EVAL-ADF4154EB1
ADF4154
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 5 to Figure 10, and Figure 12: RF
OUT
= 1.722 GHz, PFD Frequency = 26 MHz, INT = 66, Channel Spacing = 200 kHz,
Modulus = 130, Fraction = 30/130, and I
CP
= 5 mA.
Rev. 0 | Page 7 of 20
Loop Bandwidth = 20 kHz, Reference = 26 MHz, VCO = Vari-L VCO190-1750T, Evaluation Board = EVAL-ADF4154EB1. Measurements
were taken on the HP8562E spectrum analyzer.
O
0
–30
–50
–80
–90
–100
–60
–70
–40
–20
–10
V
DD
= 3V, V
P
= 5V
I
= 5mA
PFD FREQUENCY = 26MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
LOWEST NOISE MODE
N = 66 30/130
RBW = 10Hz
REFERENCE
LEVEL =–4dBm
–102dBc/Hz
–2kHz
–1kHz
1kHz
2kHz
1.722GHz
0
Figure 5. Phase Noise (Lowest Noise Mode)
O
0
–30
–50
–80
–90
–100
–60
–70
–40
–20
–10
V
DD
= 3V, V
P
= 5V
I
= 5mA
PFD FREQUENCY = 26MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
LOW NOISE AND
SPUR MODE
N = 66 30/130
RBW = 10Hz
REFERENCE
LEVEL =–4.2dBm
–95dBc/Hz
–2kHz
–1kHz
1kHz
2kHz
1.722GHz
0
Figure 6. Phase Noise (Low Noise Mode and Spur Mode)
O
0
–30
–50
–80
–90
–100
–60
–70
–40
–20
–10
V
DD
= 3V, V
P
= 5V
I
= 5mA
PFD FREQUENCY = 26MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
LOWEST SPUR MODE
N = 66 30/130
RBW = 10Hz
REFERENCE
LEVEL =–4.2dBm
–90dBc/Hz
–2kHz
–1kHz
1kHz
2kHz
1.722GHz
0
Figure 7. Phase Noise (Lowest Spur Mode)
O
0
–30
–50
–80
–90
–60
–70
–40
–20
–10
V
DD
= 3V, V
P
= 5V
I
= 5mA
PFD FREQUENCY = 26MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
LOWEST NOISE MODE
N = 66 30/130
RBW = 10Hz
REFERENCE
LEVEL =–4.2dBm
–71dBc@200kHz
–400kHz
–200kHz
200kHz
400kHz
1.722GHz
–100
0
Figure 8. Spurs (Lowest Noise Mode)
O
0
–30
–50
–80
–90
–100
–60
–70
–40
–20
–10
V
DD
= 3V, V
P
= 5V
I
= 5mA
PFD FREQUENCY = 26MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
LOW NOISE AND
SPUR MODE
N = 66 30/130
RBW = 10Hz
REFERENCE
LEVEL =–4.2dBm
–74dBc@200kHz
–400kHz
–200kHz
200kHz
400kHz
1.722GHz
0
Figure 9. Spurs (Low Noise and Spur Mode)
O
0
–30
–50
–80
–90
–100
–60
–70
–40
–20
–10
V
DD
= 3V, V
P
= 5V
I
= 5mA
PFD FREQUENCY = 26MHz
CHANNEL STEP = 200kHz
LOOP BANDWIDTH = 20kHz
LOWEST SPUR NOISE
N = 66 30/130
RBW = 10Hz
REFERENCE
LEVEL =–4.2dBm
–400kHz
–200kHz
200kHz
400kHz
1.722GHz
0
Figure 10. Spurs (Lowest Spur Mode)
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