MAX2306EGI Ver la hoja de datos (PDF) - Maxim Integrated

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MAX2306EGI

CDMA IF VGAs and I/Q Demodulators with VCO and Synthesizer

Maxim Integrated 

CDMA IF VGAs and I/Q Demodulators

with VCO and Synthesizer

Table 3. MAX2309 Control Register States

M

L

PINS

S

CONTROL REGISTER

S

B

B

OPERATIONAL

MODE

ACTION

RESULT

SHUTDOWN

SHUTDOWN

STANDBY

STANDBY

DIVIDER

SELECT

DIVIDER

SELECT

LO BUFFER

ENABLE

LO BUFFER

ENABLE

Shutdown pin com-

pletely powers down

the chip

LXXXXXXXXXXXXXXXX

0 in shutdown register

bit leaves serial bus

active

HXXXXXXXXXXXXXXX0

0 in standby pin turns

off VGA and modulator H

L

0

X

only

X1

0 in standby register bit

turns off VGA and mod-

ulator only

H

H/

L

H

0

X

01

DIVSEL pin overrides

DIVSEL register bit

H

H/

L

H

0

X

X

1

If DIVSEL pin is floated,

then register bit selects H F

H

divider

0

1/

0

X

1

BUFEN pin controls the

LO buffer and overrides

the bit

H/

L

H

0

X

X

1

If pin is floated, then

BUFEN register bit

H

F

controls buffer

0

X

1/

0

1

Note: H = high, L = low, 1 = logic high, 0 = logic low, X = don’t care, blank = independent parameter.

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