Datasheet

ADF4360-4
Data Sheet
Rev. B | Page 4 of 24
Parameter B Version Unit Conditions/Comments
NOISE CHARACTERISTICS
5
VCO Phase-Noise Performance
8
−111 dBc/Hz typ @ 100 kHz offset from carrier.
−133 dBc/Hz typ @ 1 MHz offset from carrier.
−141 dBc/Hz typ @ 3 MHz offset from carrier.
−147
dBc/Hz typ
@ 10 MHz offset from carrier.
Synthesizer Phase-Noise Floor
9
−172 dBc/Hz typ @ 25 kHz PFD frequency.
−163 dBc/Hz typ @ 200 kHz PFD frequency.
−147 dBc/Hz typ @ 8 MHz PFD frequency.
In-Band Phase Noise
10, 11
−85 dBc/Hz typ @ 1 kHz offset from carrier.
RMS Integrated Phase Error
12
0.56 Degrees typ 100 Hz to 100 kHz.
Spurious Signals due to PFD Frequency
11, 13
−65 dBc typ
Level of Unlocked Signal with MTLD Enabled −48 dBm
1
Operating temperature range is –40°C to +85°C.
2
Guaranteed by design. Sample tested to ensure compliance.
3
I
CP
is internally modified to maintain constant loop gain over the frequency range.
4
T
A
= 25°C; AV
DD
= DV
DD
= V
VCO
= 3.3 V; P = 32.
5
These characteristics are guaranteed for VCO core power = 15 mA.
6
Jumping from 1.45 GHz to 1.75 GHz. PFD frequency = 200 kHz; loop bandwidth = 10 kHz.
7
Using 50 Ω resistors to V
VCO
into a 50 Ω load. For tuned loads, see the Output Matching section.
8
The noise of the VCO is measured in open-loop conditions.
9
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).
10
The phase noise is measured with the EV-ADF4360-4EB1Z Evaluation Board and the HP8562E Spectrum Analyzer. The spectrum analyzer provides the REF
IN
for the
synthesizer; offset frequency = 1 kHz.
11
f
REFIN
= 10 MHz; f
PFD
= 200 kHz; N = 8000; Loop B/W = 10 kHz.
12
f
REFIN
= 10 MHz; f
PFD
= 1 MHz; N = 1600; Loop B/W = 25 kHz.
13
The spurious signals are measured with the EV-ADF4360-4EB1Z Evaluation Board and the HP8562E Spectrum Analyzer. The spectrum analyzer provides the REF
IN
for
the synthesizer; f
REFOUT
= 10 MHz @ 0 dBm.