ALC5633 查看數據表（PDF） - Realtek Semiconductor

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ALC5633

I2C + I2S Stereo Audio Codec Mono Class-AB/D Amp

Realtek Semiconductor 

7. Function Description

ALC5633Q

Datasheet

7.1. Power

There are different power types in ALC5633Q. DBVDD is for digital I/O power, DCVDD is for digital

core power, AVDD is for analog power (include analog I/Os, Video Buffer and Touch Panel Controller)

and SPKVDD is for speaker amplifier power.

The power supplier limit condition is DBVDD ≧ DCVDD and SPKVDD ≧ AVDD, AVDD ≧ DCVDD,

and for the best performance, our design setting is show on below.

Power

Setting

Table 5. Power Supply for Best Performance

DBVDD

DCVDD

AVDD

3.3V

3.3V

3.3V

SPKVDD

4.2V

7.2. Reset

There are 2 types of reset operation: power on reset (POR) and register reset.

Reset Type

POR

Register Reset

Table 5. Reset Operation

Trigger Condition

CODEC Response

Monitor digital power supply voltage reach

VPOR

Write REG-MX00h

Reset all hardware logic and all registers to default

values.

Reset all registers to default values except some specify

control registers and logic.

7.2.1. Power-On Reset (POR)

When powered on, DCVDD passes through the VPOR band of the ALC5633Q (VPOR_ON ~VPOR_OFF). A

power on reset (POR) will generate an internal reset signal (POR reset ‘LOW’) to reset the whole chip.

Table 6.

Symbol

Min

VPOR_ON

1.0

VPOR_OFF

-

Note: VPOR_OFF must be below VPOR_ON.

Power-On Reset Voltage

Typical

-

1.3

Max

1.6

-

Unit

V

V

7.2.2. Software Reset

When REG-MX00h is wrote, all registers become to default value.

I2S Stereo Audio Codec + Mono Class-AB/D Amp

7

Rev. 0.1

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