Datasheet

MAX2306/MAX2308/MAX2309
CDMA IF VGAs and I/Q Demodulators
with VCO and Synthesizer
14 ______________________________________________________________________________________
MAX2309
BYP
BYP
STBY
CDMA+
3-WIRE
DAC
0.01µF
0.01µF
0.068µF
47pF
2pF
33pF
0.01µF
10kΩ
2.4kΩ
10kΩ
33pF
47pF
33nH
0.01µF
680Ω
CDMA-
LOCK
VGC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
DATA
CLK
QOUT+
QOUT-
EN
BUFEN
IOUT-
IOUT+
REF
GND
V
CC
LOOUT
TANKH-
TANKH+
GND
CP_OUT
BYP
SHDN
DIVSEL
47pF
FM
455kHz
10kΩ10kΩ
LIMITER
DISCRIMINATOR
47kΩ
Q
I
CDMA
Figure 3. MAX2309 Typical Operating Circuit