C11 datasheet(34/72 Pages) AMSOSRAM

34 / 72 page

AS3688

austriami crosyst ems

Datasheet, Confidential

www.austriamicrosystems.com (ptr,tje)

Revision 1.1.1 / 20060707

32 - 70

Figure

19 – RGB pin functionality

Table

14 – RGB pins Function Overview

Bit settings

Pin Function / Name

rgb1_

mode

rgb2_

mode

rgb3_

mode

cp_ext

_on

ldo_an

a2_on

RGB1

RGB2

RGB3

Function

00b

open

all functions off

01b

RGB1

RGB2

RGB3

Normal current sink operation

10b

RGB1

RGB2

RGB3

PWM current sink operation

xxb

CP_CLK1 CP_CLK2

CP_FB

External chargepump operation

xxb

open or

RGB1

open or

RGB2

LDO_ANA2

current sink operation on RGB1 and

RGB2, LDO_ANA2 on RGB3 pin

These low voltage current sinks have a resolution of 8 bits. They can be controlled individually by the LED

pattern generator (on/off).

External PWM control of these current sinks is also possible and can be enabled by software (Input pin GPIO0).

If the current sink RGB3 (VANA2) is not used, its alternative function is ldo VANA2.

Symbol

Parameter

Min

Typ

Max

Unit

Note

IBIT7

Current sink if Bit7 = 1

19.2

For V(CURRx) > 0.2V

Battery

VBAT3

RGB1

RGB2

Current Sinks

0.15-38.5mA

OLED

Charge Pump

(Alternative Function)

Battery or CPOUT

D13,D14,D15

LDO VANA2

1.85-3.4V

150mA

VBAT3

Vref

VANA2

CLK1

CLK2

RGB3 (VANA2)

RGB3

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