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ADF4108BCPZ Scheda tecnica(PDF) 3 Page - Analog Devices

Il numero della parte ADF4108BCPZ
Spiegazioni elettronici  PLL Frequency Synthesizer
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ADF4108
Rev. 0 | Page 3 of 20
SPECIFICATIONS
AVDD = DVDD = 3.3 V ± 2%, AVDD ≤ VP ≤ 5.5 V, AGND = DGND = CPGND = 0 V, RSET = 5.1 kΩ, dBm referred to 50 Ω, TA = TMIN to
TMAX, unless otherwise noted.
Table 1.
Parameter
B Version1
B Chips2
(Typ)
Unit
Test Conditions/Comments
RF CHARACTERISTICS
See Figure 12 for input circuit
RF Input Frequency (RFIN)
1.0/8.0
1.0/8.0
GHz min/max
For lower frequencies ensure slew rate (SR) > 320 V/μs
RF Input Sensitivity
−5/+5
−5/+5
dBm min/max
Maximum Allowable Prescaler
Output Frequency3
300
325
300
325
MHz max
MHz max
P = 8
P = 16
REFIN CHARACTERISTICS
REFIN Input Frequency
20/250
20/250
MHz min/max
For f < 20 MHz, ensure SR > 50 V/μs
REFIN Input Sensitivity4
0.8/VDD
0.8/VDD
V p-p min/max
Biased at AVDD/25
REFIN Input Capacitance
10
10
pF max
REFIN Input Current
±100
±100
μA max
PHASE DETECTOR
Phase Detector Frequency6
104
104
MHz max
CHARGE PUMP
Programmable; see Figure 19
ICP Sink/Source
High Value
5
5
mA typ
With RSET = 5.1 kΩ
Low Value
625
625
μA typ
Absolute Accuracy
2.5
2.5
% typ
With RSET = 5.1 kΩ
RSET Range
3.0/11
3.0/11
kΩ typ
See Figure 19
ICP Three-State Leakage
1
1
nA typ
1 nA typical; TA = 25°C
Sink and Source Current
Matching
2
2
% typ
0.5 V ≤ VCP ≤ VP – 0.5 V
ICP vs. VCP
1.5
1.5
% typ
0.5 V ≤ VCP ≤ VP – 0.5 V
ICP vs. Temperature
2
2
% typ
VCP = VP/2
LOGIC INPUTS
VIH, Input High Voltage
1.4
1.4
V min
VIL, Input Low Voltage
0.6
0.6
V max
IINH, IINL, Input Current
±1
±1
μA max
CIN, Input Capacitance
10
10
pF max
LOGIC OUTPUTS
VOH, Output High Voltage
1.4
1.4
V min
Open-drain output chosen; 1 kΩ pull-up resistor to 1.8 V
VOH, Output High Voltage
VDD − 0.4
VDD − 0.4
V min
CMOS output chosen
IOH
100
100
μA max
VOL, Output Low Voltage
0.4
0.4
V max
IOL = 500 μA
POWER SUPPLIES
AVDD
3.2/3.6
3.2/3.6
V min/V max
DVDD
AVDD
AVDD
VP
AVDD/5.5
AVDD/5.5
V min/V max
AVDD ≤ VP ≤ 5.5 V
IDD (AIDD + DIDD)7
17
17
mA max
15 mA typ
IP
0.4
0.4
mA max
TA = 25°C
Power-Down Mode (AIDD + DIDD)8
10
10
μA typ


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