Datasheet

ADF4360-9 Data Sheet
Rev. C | Page 4 of 24
Parameter B Version Unit Conditions/Comments
Frequency Pushing (Open Loop) 0.24 MHz/V typ
Frequency Pulling (Open Loop) 10 Hz typ Into 2.00 VSWR load
Harmonic Content (Second) −16 dBc typ
Harmonic Content (Third) −21 dBc typ
Output Power
5, 7
−9/0
dBm typ
Using tuned load, programmable in 3 dB steps;
see Figure 35
Output Power
5, 8
−14/−9 dBm typ
Using 50 Ω resistors to V
VCO
, programmable in
3 dB steps; see Figure 33
Output Power Variation ±3 dB typ
VCO Tuning Range 1.25/2.5 V min/V max
VCO NOISE CHARACTERISTICS
VCO Phase Noise Performance
9,10
−91 dBc/Hz typ @ 10 kHz offset from carrier
−117 dBc/Hz typ @ 100 kHz offset from carrier
−139
dBc/Hz typ
@ 1 MHz offset from carrier
−140 dBc/Hz typ @ 3 MHz offset from carrier
−147 dBc/Hz typ @ 10 MHz offset from carrier
Normalized In-Band Phase Noise
10, 11
−218 dBc/Hz typ
In-Band Phase Noise
10, 11
−110 dBc/Hz typ @ 1 kHz offset from carrier
RMS Integrated Jitter
12
1.4 ps typ Measured at RF
OUT
A
Spurious Signals Due to PFD Frequency
13
−75 dBc typ
DIVOUT CHARACTERISTICS
12
Integrated Jitter Performance
(Integrated from 100 Hz to 1 GHz)
VCO frequency = 320 MHz to 380 MHz
DIVOUT = 180 MHz 1.4 ps rms A = 2, A output selected
DIVOUT = 95 MHz 1.4 ps rms A = 2, A/2 output selected
DIVOUT = 80 MHz 1.4 ps rms A = 2, A/2 output selected
DIVOUT = 52 MHz
1.4
ps rms
A = 3, A/2 output selected (VCO = 312 MHz,
PFD = 1.6 MHz)
DIVOUT = 45 MHz 1.4 ps rms A = 4, A/2 output selected
DIVOUT = 10 MHz 1.6 ps rms
A = 18, A/2 output selected (VCO = 360 MHz,
PFD = 1.6 MHz)
DIVOUT Duty Cycle
A Output 1/A × 100 % typ Divide-by-A selected
A/2 Output 50 % typ Divide-by-A/2 selected
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.
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 90 MHz to 108 MHz. PFD frequency = 200 kHz; loop bandwidth = 10 kHz.
7
For more detail on using tuned loads, see the Output Matching section.
8
Using 50 Ω resistors to V
VCO
into a 50 Ω load.
9
The noise of the VCO is measured in open-loop conditions. L1, L2 = 56 nH.
10
The phase noise is measured with the EV-ADF4360-9EB1Z evaluation board and the Agilent E5052A signal source analyzer.
11
f
REFIN
= 10 MHz; f
PFD
= 1 MHz; N = 360; loop B/W = 40 kHz. The normalized 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) and 10logf
PFD
. PN
SYNTH
= PN
TOT
− 10logf
PFD
− 20logN.
12
The jitter is measured with the EV-ADF4360-9EB1Z evaluation board and the Agilent E5052A signal source analyzer. A low noise TCXO provides the REF
IN
for the
synthesizer, and the jitter is measured over the instrument’s jitter measurement bandwidth. f
REFIN
= 10 MHz; f
PFD
= 1 MHz; N = 360; loop BW = 40 kHz, unless otherwise
noted.
13
The spurious signals are measured with the EV-ADF4360-9EB1Z evaluation board and the Agilent E5052A signal source analyzer. The spectrum analyzer provides the
REF
IN
for the synthesizer; f
REFIN
= 10 MHz @ 0 dBm. f
REFIN
= 10 MHz; f
PFD
= 1 MHz; N = 360; loop BW = 40 kHz.