ADF4360-8(Rev0) Просмотр технического описания (PDF) - Analog Devices
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ADF4360-8 Datasheet PDF : 24 Pages
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ADF4360-8
Parameter
RF OUTPUT CHARACTERISTICS5
Maximum VCO Output Frequency
B Version
400
Minimum VCO Output Frequency 65
VCO Output Frequency
88/108
VCO Frequency Range
1.2
VCO Sensitivity
2
Lock Time6
Frequency Pushing (Open Loop)
Frequency Pulling (Open Loop)
Harmonic Content (Second)
Harmonic Content (Third)
Output Power5, 7
Output Power5, 8
Output Power Variation
VCO Tuning Range
NOISE CHARACTERISTICS5
VCO Phase Noise Performance9
Synthesizer Phase Noise Floor10
Phase Noise Figure of Merit10
In-Band Phase Noise11, 12
RMS Integrated Phase Error13
Spurious Signals due to PFD
Frequency12, 14
Level of Unlocked Signal with
MTLD Enabled
400
0.24
10
−16
−21
−9/0
−14/−9
±3
1.25/2.5
−120
−139
−140
−142
−160
−150
−142
−209
−102
0.09
−75
−70
Unit
MHz
MHz
MHz min/max
Ratio
MHz/V typ
µs typ
MHz/V typ
Hz typ
dBc typ
dBc typ
dBm typ
dBm typ
dB typ
V min/max
dBc/Hz typ
dBc/Hz typ
dBc/Hz typ
dBc/Hz typ
dBc/Hz typ
dBc/Hz typ
dBc/Hz typ
dBc/Hz typ
dBc/Hz typ
Degrees typ
dBc typ
dBm typ
Conditions/Comments
ICORE = 5 mA. Depending on L. See the
Choosing the Correct Inductance Value section.
L1, L2 = 270 nH. See the Choosing the Correct Inductance Value
section for other frequency values.
FMAX / FMIN
L1, L2 = 270 nH. See the Choosing the Correct Inductance Value
section for other sensitivity values.
To within 10 Hz of final frequency.
Into 2.00 VSWR load.
Using tuned load, programmable in 3 dB steps. See Table 7.
Using 50 Ω resistors to VVCO, programmable in 3 dB steps. See Table 7.
@ 100 kHz offset from carrier.
@ 800 kHz offset from carrier.
@ 3 MHz offset from carrier.
@ 10 MHz offset from carrier.
@ 200 kHz PFD frequency.
@ 1 MHz PFD frequency.
@ 8 MHz PFD frequency.
@ 1 kHz offset from carrier.
100 Hz to 100 kHz.
1 Operating temperature range is –40°C to +85°C.
2 Guaranteed by design. Sample tested to ensure compliance.
3 ICP is internally modified to maintain constant loop gain over the frequency range.
4 TA = 25°C; AVDD = DVDD = VVCO = 3.3 V.
5 Unless otherwise stated, these characteristics are guaranteed for VCO core power = 5 mA. L1, L2 = 270 nH, 470 Ω resistors to GND in parallel with L1, L2.
6 Jumping from 88 MHz to 108 MHz. PFD frequency = 200 kHz; loop bandwidth = 10 kHz.
7 For more detail on using tuned loads, see Output Matching section.
8 Using 50 Ω resistors to VVCO, into a 50 Ω load.
9 The noise of the VCO is measured in open-loop conditions.
10 The synthesizer phase noise floor is estimated by measuring the in-band phase noise at the output of the VCO and subtracting 20 log N (where N is the N divider value). The
phase noise figure of merit subtracts 10 log (PFD frequency).
11 The phase noise is measured with the EVAL-ADF4360-xEB1 Evaluation Board and the HP 8562E Spectrum Analyzer. The Spectrum Analyzer provides the REFIN for the
synthesizer; offset frequency = 1 kHz.
12 fREFIN = 10 MHz; fPFD = 200 kHz; N = 1000; Loop B/W = 10 kHz.
13 fREFIN = 10 MHz; fPFD = 1 MHz; N = 120; Loop B/W = 100 kHz.
14 The spurious signals are measured with the EVAL-ADF4360-xEB1 Evaluation Board and the HP 8562E Spectrum Analyzer. The Spectrum Analyzer provides the REFIN
for the synthesizer; fREFOUT = 10 MHz @ 0 dBm.
Rev. 0 | Page 4 of 24
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