Rainbow-electronics MAX1621 Manuel d'utilisateur télécharger pdf (Page 13)

MAX1620/MAX1621

Digitally Adjustable LCD Bias Supplies

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Reserved for future use.

DAC Register Data

Reserved for future use.

If the voltage applied to POK is

greater than 0.992V and the

MAX1621 is not shut down, this bit

returns 1; otherwise, it returns 0.

DESCRIPTION

—5

D4 (MSB)

—6

POK7

NAMEBIT

With SUS = high,

1 = LCD on, and

0 = LCD off.

DAC Input Data

With SUS = high,

1 = operating, and

0 = shutdown.

this bit writes the next two

bits into the OPR register

and the remaining five bits

into the DAC register

(Figure 7).

DESCRIPTION

1OPR-LCDON5

D4 (MSB)

OPR-SHDN

—REGSEL7

NAME

POR

STATE*

BIT

Table 2. MAX1621 Configuration Byte

with REGSEL = 1 (write to OPR register)

Initial register state after power-up.

Table 3. MAX1621 Status Bits

With SUS = low,

1 = LCD on, and

0 = LCD off.

DAC Input Data

With SUS = low,

1 = operating, and

0 = shutdown.

this bit writes the next two

bits into the SUS register

and the remaining five bits

into the DAC register

(Figure 7).

DESCRIPTION

SUS-LCDON

D4 (MSB)

SUS-SHDN

—REGSEL7

POR

STATE*

BIT NAME

Initial register state after power-up.

Table 1. MAX1621 Configuration Byte

with REGSEL = 0 (write to SUS register)

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 19 20

MAX1620/MAX1621 1

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Rainbow-electronics MAX1621 Manuel d'utilisateur Page 13

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