Datasheet

Data Sheet ADF4156
Rev. E | Page 7 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
PFD = 25 MHz, loop bandwidth = 20 kHz, reference = 100 MHz, I
CP
= 313 μA, phase noise measurements taken on the Agilent E5500
phase noise system.
1
0
–4
0
0
9
05863-017
FR
EQ
U
ENC
Y (
GHz)
POWER (dBm)
5
0
–
5
–10
–15
–2
0
–25
–3
0
–35
1
2
3 4
5 6
7
8
P
=
4
/
5
P
=
8
/
9
Figure 5. RF Input Sensitivity
0
1k
100M
05863-018
FREQUE
NCY (
H
z)
PHASE NOISE (dBc/Hz)
–2
0
–40
–6
0
–80
–100
–120
–140
–160
–180
10
k
100k 1M 10M
L
OW
NOI
SE
M
O
D
E
RF
= 5800.
25
MH
z,
P
FD
= 25
M
Hz
, N
=
232,
FRAC
=
2
,
M
O
D
= 200
, 20k
Hz L
OOP
BW,
I
CP
=
313µA,
DS
B IN
TE
GRA
TE
D
PHA
SE E
RROR = 0.73° RMS,
P
HASE
N
OISE @ 5kHz = –89.5dBc/H
z,
ZCOMM V940ME03 VC
O
Figure 6. Phase Noise and Spurs, Low Noise Mode
0
1k 100M
05863-019
FREQUENCY (Hz)
PHASE NOISE (dBc/Hz)
–20
–40
–60
–80
–100
–120
–140
–160
–180
10k 100k 1M 10M
LOW SPUR MODE
RF = 5800.25MHz, PFD = 25MHz, N = 232, FRAC = 2,
MOD = 200, 20kHz LOOP BW, I
CP
= 313µA,
DSB INTEGRATED PHASE ERROR = 1.09° RMS,
PHASE NOISE @ 5kHz = –83dBc/Hz, ZCOMM V940ME03 VCO
Figure 7. Phase Noise and Spurs, Low Spur Mode
(Note that Fractional Spurs Are Removed and Only
the Integer Boundary Spur Remains in Low Spur Mode)
6.00
5
.
6
5
–100
900
05863-021
TI
ME
(µ
s
)
FREQUENCY (GHz)
5
.
9
5
5
.
9
0
5
.
8
5
5
.8
0
5
.
7
5
5
.
7
0
0
100
200
30
0 40
0 50
0
600
700
80
0
C
SR
O
FF
C
S
R
O
N
Figure 8. Lock Time for 200 MHz Jump, from 5705 MHz to 5905 MHz,
with CSR On and Off
5.65
5.
6
0
5
.
95
5
.9
0
5.
85
5.
80
5.7
5
5.70
–10
0 900
05863-022
TIME (µs
)
FREQUENCY (GHz)
0 10
0 20
0
300
400
500 600 700
800
C
SR
O
N
CSR
OFF
Figure 9. Lock Time for 200 MHz Jump, from 5905 MHz to 5705 MHz,
with CSR On and Off
V
CP
(V)
6
0
–6
I
CP
(mA)
4
2
–2
–4
–5
–3
–1
1
3
5
0 1 2 3 4 5
05863-020
Figure 10. Charge-Pump Output Characteristics