Datasheet
∆V = ∆f / 500kHz/V (nominal modulation sensitivity)
Let R = R
1
+ R
3
+ R
4
. Setting R based on the desired
current from V
CC
and filter impedance level:
Layout Issues
Use controlled impedance lines (microstrip, co-planar
waveguide, etc.) each time for high-frequency signals.
Always place decoupling capacitors as close to the
V
CC
pins as possible; for long V
CC
lines, it may be nec-
essary to add additional decoupling capacitors located
further from the device. Always provide a low-induc-
tance path to ground, and keep GND vias as close to
the device as possible. Thermal reliefs on GND pads
are not recommended.
R
R
R
V
V
R
RR
V
V
R
V
V
R
MODB
MODB
CC
MODB
CC
1
2
21
4
3
1
2
4
=
=−
⎛
⎝
⎜
⎞
⎠
⎟
×
=× −
⎛
⎝
⎜
⎞
⎠
⎟
=×
,
,
,
∆
MAX2754
1.2GHz VCO with Linear
Modulation Input
_______________________________________________________________________________________ 7
Chip Information
TRANSISTOR COUNT: 619








