
LTC6946
9
6946fa
LTC6946-3 Spurious Response
fRF = 900MHz, fREF = 10MHz,
fPFD = 1MHz, Loop BW = 40kHz
LTC6946-3 Spurious Response
fRF = 2200MHz, fREF = 10MHz,
fPFD = 0.4MHz, Loop BW = 28kHz
LTC6946-3 Spurious Response
fRF = 5700MHz, fREF = 100MHz,
fPFD = 1MHz, Loop BW = 33kHz
TYPICAL PERFORMANCE CHARACTERISTICS
TC = 25°C, VREF+ = VREFO+ = VD+ = VRF+ = 3.3V, VCP+ = VVCO+ = 5V, RFO[1:0] = 3,unless otherwise noted.
FREQUENCY OFFSET (MHz IN 10kHz SEGMENTS)
–10
–105dBc
–103dBc
–111dBc
–109dBc
–3
–140
P
OUT
(dBm)
–120
–100
–80
123
0
6946 G28
–2
–1
0
10
–60
–40
–20
RBW = 1Hz
VBW = 1Hz
NOTES 8, 13
FREQUENCY OFFSET (MHz IN 10kHz SEGMENTS)
–10
–93dBc
–94dBc
–86dBc
–88dBc
–1.2
–140
P
OUT
(dBm)
–120
–100
–80
0.4 0.8 1.2
0
6946 G29
–0.8 –0.4
0
10
–60
–40
–20
RBW = 1Hz
VBW = 1Hz
NOTES 8, 13
FREQUENCY OFFSET (MHz IN 10kHz SEGMENTS)
–100
–101dBc
–113dBc
–96dBc
–92dBc
–3
–140
P
OUT
(dBm)
–120
–100
–80
123
0
6946 G30
–2
–1
0
100
–60
–40
–20
RBW = 1Hz
VBW = 1Hz
NOTE 13