MAX2314EEI Maxim Integrated, MAX2314EEI Datasheet - Page 12

• Manufacturer Part Number: MAX2314EEI
• Description: Modulator / Demodulator
• Manufacturer: Maxim Integrated

CDMA IF VGAs and I/Q Demodulators
with VCO and Synthesizer
Table 2. MAX2312/MAX2316 Control Register States
Note: H = high, L = low, 1 = logic high, 0 = logic low, X = don’t care, blank = independent parameter.
12
OPERATIONAL
SHUTDOWN
SHUTDOWN
LO BUFFER
LO BUFFER
STANDBY
STANDBY
DIVIDER
DIVIDER
ENABLE
ENABLE
______________________________________________________________________________________
SELECT
SELECT
MODE
Shutdown pin com-
pletely powers down
the chip
0 in shutdown register
bit leaves serial bus
active
0 in standby pin turns
off VGA and modulator
only
0 in standby register bit
turns off VGA and mod-
ulator only
DIV_SEL pin overrides
DIV_SEL register bit
If DIV_SEL pin is float-
ed, then register bit
selects divider
BUFEN pin controls the
LO buffer and overrides
the bit
If pin is floated, then
BUFEN register bit
controls buffer
RESULT
ACTION
H/
H
H
H
H
H
H
L
L
H/
H/
X
X
L
L
F
PINS
H
H
X
X
F
H
H
X
X
L
M
S
B
X
X
X
X
X
X
0
0
0
0
0
0
X
X
CONTROL REGISTER
1/
X
X
X
0
X
X
MSB
X
X
X
X
X
X
X
X
X
X
1/
X
X
X
0
X
X
X
X
X
X
X
0
S
B
L
X
0
1
1
1
1
1
1