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ADF4154BRU-REEL 데이터시트(PDF) 3 Page - Analog Devices

부품명 ADF4154BRU-REEL
상세설명  Fractional-N Frequency Synthesizer
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ADF4154
Rev. 0 | Page 3 of 20
SPECIFICATIONS
Table 1. AVDD = DVDD = SDVDD = 2.7 V to 3.3 V; VP = AVDD to 5.5 V; AGND = DGND = 0 V; TA = TMIN to TMAX, unless otherwise
noted; dBm referred to 50 Ω. The operating temperature for the B version is −40°C to +80°C.
Parameter
B Version
Unit
Test Conditions/Comments
RF CHARACTERISTICS (3 V)
See
Figure 18 for input circuit.
RF Input Frequency (RFIN)1
0.5/4.0
GHz min/max
−8 dBm/0 dBm min/max. For lower frequencies, ensure slew rate > 396 V/µs.
1.0/4.0
GHz min/max
−10 dBm/0 dBm min/max.
REFERENCE CHARACTERISTICS
See Figure 17 for input circuit.
REFIN Input Frequency1
10/250
MHz min/max
For f < 10 MHz, use a dc-coupled, CMOS compatible square wave, slew rate >
21 V/µs.
REFIN Input Sensitivity
0.7/AVDD
V p-p
min/max
AC-coupled.
0 to AVDD
V max
CMOS compatible.
REFIN Input Capacitance
10
pF max
REFIN Input Current
±100
µA max
PHASE DETECTOR
Phase Detector Frequency2
32
MHz max
CHARGE PUMP
ICP Sink/Source
Programmable. See Table 5.
High Value
5
mA typ
With RSET = 5.1 kΩ.
Low Value
312.5
µA typ
Absolute Accuracy
2.5
% typ
With RSET = 5.1 kΩ.
RSET Range
1.5/10
kΩ min/max
ICP Three-State Leakage Current
1
nA typ
Sink and source current.
Matching
2
% typ
0.5 V < VCP < VP – 0.5.
ICP vs. VCP
2
% typ
0.5 V < VCP < VP – 0.5.
ICP vs. Temperature
2
% typ
VCP = VP/2.
LOGIC INPUTS
VINH, Input High Voltage
1.4
V min
VINL, Input Low Voltage
0.6
V max
IINH/IINL, Input Current
±1
µA max
CIN, Input Capacitance
10
pF max
LOGIC OUTPUTS
VOH, Output High Voltage
1.4
V min
Open-drain 1 kΩ pull-up to 1.8 V.
VOL, Output Low Voltage
0.4
V max
IOL = 500 µA.
POWER SUPPLIES
AVDD
2.7/3.3
V min/V max
DVDD, SDVDD
AVDD
VP
AVDD/5.5
V min/V max
IDD3
24
mA max
20 mA typical.
Low Power Sleep Mode
1
µA typ
NOISE CHARACTERISTICS
Phase Noise Figure of Merit4
−213
dBc/Hz typ
ADF4154 Phase Noise Floor5
−143
dBc/Hz typ
@ 10 MHz PFD frequency.
−139
dBc/Hz typ
@ 26 MHz PFD frequency.
Phase Noise Performance6
@ VCO output.
1750 MHz Output7
−102
dBc/Hz typ
@ 1 kHz offset, 26 MHz PFD frequency.
1 Use a square wave for frequencies below fMIN.
2 Guaranteed by design. Sample tested to ensure compliance.
3 AC coupling ensures AVDD/2 bias. See
for typical circuit.
Figure 17
4 This figure can be used to calculate phase noise for any application. Use the formula –213 + 10log(fPFD) + 20logN to calculate in-band phase noise performance, as seen
at the VCO output. The value given is the lowest noise mode.
5 The synthesizer phase noise floor is estimated by measuring the in-band phase noise at the output of the VCO and subtracting 20logN (where N is the N-divider value).
The value given is the lowest noise mode.
6 The phase noise is measured with the EVAL-ADF4154EB1 evaluation board and the HP8562E spectrum analyzer.
7 fREFIN = 26 MHz; fPFD = 26 MHz; offset frequency = 1 kHz; RFOUT = 1750 MHz; loop B/W = 20 kHz; lowest noise mode.


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