SLG46880 datasheet(92/353 Pages) DIALOG

92 / 353 page

Datasheet

25-Feb-2021

CFR0011-120-00

Revision 3.12

92 of 353

SLG46880/81

GreenPAK Programmable Mixed-Signal Matrix with Asynchronous

State Machine and Dual Supply

Note: If low power BG is powered on/off by WS, the wake time should be longer than 2.1 ms. The BG/analog start up time will

take maximal 2 ms. If low power BG is always on, OSC0 period is longer than required wake time. The short wake mode can be

used to reduce the current consumption.

To use any ACMPxH under WS controller the following settings must be done:

 ACMPxH Power Up Input from matrix = 1 (for each ACMPxH separately).

Figure 58: Wake/Sleep Timing Diagram, Normal Wake Mode, Counter Set is Used

Figure 59: Wake/Sleep Timing Diagram, Short Wake Mode, Counter Set is Used

Normal ACMP

Operation

ACMP follows input

Sleep Mode

ACMP Latches New Data

Data is latched

BG/Analog

Startup time*

Force Sleep

Sleep Mode

ACMP Latches Last Data

BG/Analog_Good

(internal signal)

ACMP_PD is High

(From Connection Matrix)

CNT_SET

(From Connection Matrix)

CNT0_out

(To Connection Matrix)

time between Reset goes low

and 1st WS clock rsing edge

WS_out

(internal signal)

Note: CNT0_out is a delayed WS_out signal for 1us to make sure the data is correct during latch.

Sleep Mode

ACMP Latches New Data

Data is latched

BG/Analog

Startup time*

Normal ACMP

Operation for short time

ACMP follows inout

Force Sleep

Sleep Mode

ACMP Latches Last Data

BG/Analog_Good

(internal signal)

ACMP_PD is High

(From Connection Matrix)

CNT_RST

(From Connection Matrix)

CNT0_out

(To Connection Matrix)

time between Reset goes low

and 1st WS clock rsing edge

WS_out

(internal signal)

Note: CNT0_out is a delayed WS_out signal for 1us to make sure the data is correct during latch.

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