AS3658 datasheet(11/158 Pages) AMSCO

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AS3658

Data Sheet Confidential - Pin Assignmen ts

VSUPPLY_2

Supply Pad for DCDC_Step down converter2, always connect

to VSUPPLY

LX2

VSUPPLY DC/DC step down converter2 output

FB2

VSUPPLY DC/DC step down converter2 feedback

PGND2

VSUPPLY Power Ground of DCDC step down converter2

VSUPPLY_3

Supply Pad for DCDC_Step down converter3, always connect

to VSUPPLY

LX3

VSUPPLY DC/DC step down converter3 output

FB3

VSUPPLY DC/DC step down converter3 feedback

PGND3

VSUPPLY Power Ground of DCDC step down converter3

Audio

VSUPPLY_6

G13

Supply for VI2S Regulator

VI2S

Supply Pad for I2S Interface, Connect to VDAC Supply

SDI1

VI2S

I2S_1 Data input to DAC

SDO1

VI2S

I2S_1 Data output from ADC

SCLK1

I/O

VI2S

I2S_1 Shift clock input or output

LRCLK1

I/O

VI2S

I2S_1 Left/Right clock input or output

MCLK1

I/O

VI2S

Master clock input or output for I2S1: DAC (128*Fsdac or 256

*Fsdac)

SDI2

VI2S

I2S_2 Data input to DAC

SCLK2

VI2S

I2S_2 Shift clock

LRCLK2

D10

VI2S

I2S_2 Left/Right clock

MCLK2

VI2S

Master clock input for I2S2: DAC (128*Fsdac or 256 *Fsdac)

SDO3(X-)

I/O

VI2S

I2S_3 Data output (if touchpen interface disabled)

Touchpen Interface X- Input/Output (if touchpen interface

enabled)

SCLK3(X+)

I/O

VI2S

I2S_3 Shift clock output (if touchpen interface disabled)

Touchpen Interface X+ Input/Output (if touchpen interface

enabled)

LRCLK3(Y-)

I/O

VI2S

I2S_3 Left/Right clock output (if touchpen interface disabled)

Touchpen Interface Y- Input/Output (if touchpen interface

enabled)

SPDIF(Y+)

I/O

VI2S

SPDIF digital output (if touchpen interface disabled)

Touchpen Interface Y+ Input/Output (if touchpen interface

enabled)

AGND

K11

VDAC

CM voltage bypass capacitor connection (1.45V)

VREF

J11

VDAC

VDAC voltage bypass capacitor connection (2.9V)

LINL

F14

VDAC

Line input left channel.

LINR

E14

VDAC

Line input right channel

GND_SW

VSUPPLY Digital output for controlling the external NMOS

Table 2. Pin list CTBGA124, 8x8MM (AS3658)

Pin Name

Number

Type

Supply

Description

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