Datasheet

MAX2306/MAX2308/MAX2309
CDMA IF VGAs and I/Q Demodulators
with VCO and Synthesizer
18 ______________________________________________________________________________________
Functional Diagram
CP1
CP2
M1 REGISTER
M2 REGISTER
R1 REGISTER
R2 REGISTER
LOGIC
SB
SHIFT REGISTER1
00
14
11
11
010
011
110TM POL TE TC
DS
VB
VS
BD
BE
FT IS
SB
SD
DATA
CLK
CONTROL
2
2
2
2
2
REF
FM+
FM-
CDMA+
CDMA-
IOUT+
VGC
FT
VB
IOUT-
QOUT+
QOUT-
LO_OUT
TANKL+
VCO_L
MODE
DS
14
11 11
14
14
POL
11
2
IS
VS
DIVSEL
TANKL-
TANKH+
TANKH-
LOCK
BD BE
÷2
TC
BUFEN
R COUNTER M COUNTER
LOCK DET
TURBO
CONTROL
CP_OUT
CHARGE
PUMP
Ø
DET
SB
MAX2309 MAX2309
SD
SHDN
STBY
VCO_H
1401
÷2
BIAS
EN
MAX2306
MAX2308
MAX2309
MAX2306
MAX2309
MAX2306
MAX2308