CS35L32 datasheet(5/51 Pages) CIRRUS

5 / 51 page

DS963F5

CS35L32

1 Pin Descriptions

Figure 1-1. Top-Down (Through-Package) View—30-Ball WLCSP Package

‘‘‘

‘

SDA

SCL

SDOUT

SCLK

MCLK

FLOUT2/

AD0

‘‘‘‘‘

INT

RESET

LRCK

GNDPLED

FLOUT1

‘‘‘‘‘

GNDP

FLINH

GNDA

‘‘‘‘‘

SPKOUT+

SPKOUT–/

VSENSE–

FLEN

IREF+

FILT+

‘‘‘‘‘

VBST

SPKRSUPPLY

IN–

IN+

ISENSE–/

VSENSE+

ISENSE+

Table 1-1. Pin Descriptions

Ball Name

Ball

Number

Power

Supply I/O

Ball Description

Internal

Connection

Driver

Receiver State at

Reset

SDA

I/O I2C Serial Data Input. Serial data for the I2C

serial port

—CMOS

open-drain

output

Hysteresis

on CMOS

input

Hi-Z

SCL

I I2C Clock Input. Serial clock for the I2C serial

port

——

Hysteresis

on CMOS

input

Hi-Z

MCLK

I Master Clock Source. Clock source for A/D

converters and audio/data serial port (ADSP).

MCLKINT, derived from MCLK, is used for other

blocks (see Section 4.13 and Section 7.7).

Weak pull-

down

(~1 M



—

Hysteresis

on CMOS

input

Pulled

down

SCLK

I/O Serial Clock. Serial shift clock for the serial

audio interface

Weak pull-

down

(~1 M



CMOS

output

Hysteresis

on CMOS

input

Pulled

down

LRCK

I/O Left Right Clock. Determines which channel,

left or right, is currently active on the serial

audio/data lines

Weak pull-

down

(~1 M



CMOS

output

Hysteresis

on CMOS

input

Pulled

down

SDOUT

O Serial Audio/Data Output. I²S serial data

output used to monitor voltage and current of

SPKOUT signal and VP levels

Weak

pull-down

(~1 M



CMOS

output

—

Pulled

down

INT

O Interrupt. Programmable, open-drain, active-

low programmable interrupt output

—CMOS

open-drain

output

—Hi-Z

General Ground

LED

Digital I/O

Power Supply

Boost Converter

Audio

Digital I/O

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