ADF4208 AD [Analog Devices], ADF4208 Datasheet - Page 7

• Manufacturer Part Number: ADF4208
• Description: Dual RF PLL Frequency Synthesizers
• Manufacturer: AD [Analog Devices]

–100
–110
–120
–130
–140
–100
–40
–50
–60
–70
–80
–90
–100
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
100Hz
0
0
–400k
–400
FREQUENCY OFFSET FROM 1750MHz CARRIER
REFERENCE LEVEL =
–8.0dBm
REFERENCE LEVEL =
–4.2dBm
1kHz
–200k
–200
FREQUENCY – Hz
FREQUENCY – Hz
10kHz
1750M
900M
–75.2dBc/Hz
V
I
PFD FREQUENCY = 30kHz
LOOP BANDWIDTH = 3kHz
RES. BANDWIDTH = 10kHz
VIDEO BANDWIDTH = 10kHz
SWEEP = 477ms
AVERAGES = 10
V
I
PFD FREQUENCY = 200kHz
LOOP BANDWIDTH = 35kHz
RES. BANDWIDTH = 1kHz
VIDEO BANDWIDTH = 1kHz
SWEEP = 2.5 SECONDS
AVERAGES = 30
CP
CP
DD
DD
= 5mA
= 5mA
= 3V, V
= 3V, V
10dB/DIVISION
R
200k
200
L
100kHz
–89.3dBc
= –40dBc/Hz
P
P
= 5V
= 5V
1.6 rms
400k
400
1MHz
–120
–130
–140
–150
–160
–170
–180
–100
–100
–60
–70
–80
–90
–90
–10
–20
–30
–40
–50
–60
–70
–80
0
–40
1
V
V
DD
P
–400k
ADF4206/ADF4207/ADF4208
= 5V
–20
= 3V
REFERENCE LEVEL =
–5.7dBm
PHASE DETECTOR FREQUENCY – kHz
10
ADF4207
–200k
0
TEMPERATURE – C
FREQUENCY – Hz
20
1750M
100
ADF4206
V
I
PFD FREQUENCY = 30kHz
LOOP BANDWIDTH = 3kHz
RES. BANDWIDTH = 3Hz
VIDEO BANDWIDTH = 3Hz
SWEEP = 255 SECONDS
POSITIVE PEAK
DETECT MODE
40
CP
DD
= 5mA
= 3V, V
40k
60
–79.6dBc
1000
P
V
V
= 5V
DD
P
ADF4208
= 3V
= 3V
80
80k
10000
100