Datasheet

MAX2306/MAX2308/MAX2309
CDMA IF VGAs and I/Q Demodulators
with VCO and Synthesizer
______________________________________________________________________________________ 17
CP
2/0
CP
1/1
CP
1/0
R
1/10
CP
2/1
/1 R
2/10
M
1/0
M
1
13
M
2
13
M
2/0
A
2
/M
0
A
1
A
0
A
2
/M
0
A
1
A
0
CP2 AND R2 REGISTERS
SHIFT REGISTER
M1 REGISTER
M2 REGISTER
CP1 AND R1 REGISTERS
CTRL REGISTER
ADDRESS
DECODED
START BIT
1
00
1
0
0
1
0
1
1
1
0R
1/0
R
2/0
0
1TM POL TE TC DS VB VS BD BE FT IS SB SD
DATA
Figure 7. Programming Logic
DEFAULTREGISTER
M2 4269
DEC
M1 10519
DEC
CTRL 0B57
HEX
R2 492
DEC
R1 492
DEC
CP1 11
BIN
CP0 11
BIN
Table 5. Register Defaults
CHARGE-PUMP CURRENT
AFTER ACQUISITION
(µA)
CP1
0 210
0 150
CP0
1
0
1
0
1 425
1 300
Table 6. Charge-Pump Control Bits
Chip Information
TRANSISTOR COUNT: 6422