CS35L32 Datasheet, PDF (5/51 Pages) Cirrus Logic – Boosted Class D Amplifier with Speaker-Protection Monitoring and Flash LED Drivers

1 Pin Descriptions
CS35L32
1 Pin Descriptions
Ball Name
SDA
SCL
MCLK
SCLK
LRCK
SDOUT
INT
‘
‘
‘
‘
‘
A1
A2
A3
A4
A5
A6
SDA
B1
SCL
‘
B2
SDOUT
‘
B3
SCLK
‘
B4
MCLK
‘
B5
FLOUT2/
AD0
‘
B6
VP
INT
RESET
LRCK
GNDPLED
FLOUT1
‘
‘
‘
‘
‘
C1
C2
C3
C4
C5
C6
SW
GNDP
GNDP
FLINH
GNDA
VA
‘
‘
‘
‘
‘
D1
D2
D3
D4
D5
D6
SW
SPKOUT+ SPKOUT–/
FLEN
IREF+
FILT+
VSENSE–
‘
‘
‘
‘
‘
E1
E2
E3
E4
E5
E6
VBST
SPKRSUPPLY
IN–
IN+
ISENSE–/
ISENSE+
VSENSE+
LED
Digital I/O
Audio
Power Supply
General Ground
Boost Converter
Figure 1-1. Top-Down (Through-Package) View—30-Ball WLCSP Package
Ball
Number
Power
Supply
I/O
Table 1-1. Pin Descriptions
Ball Description
Internal
Connection
Driver
Receiver
State at
Reset
Digital I/O
A1
VA I/O I²C Serial Data Input. Serial data for the I²C
serial port
—
CMOS
Hysteresis Hi-Z
open-drain on CMOS
output
input
A2
VA I I²C Clock Input. Serial clock for the I²C serial
—
port
— Hysteresis Hi-Z
on CMOS
input
A5
VA I Master Clock Source. Clock source for A/D Weak pull-
converters and audio/data serial port (ADSP). down
MCLK_INT, derived from MCLK, is used for other ^{(~1 M}
blocks (see Section 4.13 and Section 7.7).
— Hysteresis Pulled
on CMOS down
input
A4
VA I/O Serial Clock. Serial shift clock for the serial Weak pull- CMOS
Hysteresis Pulled
audio interface
down
output
on CMOS down
(~1 M
input
B4
VA I/O Left Right Clock. Determines which channel, Weak pull- CMOS
Hysteresis Pulled
left or right, is currently active on the serial down
output
on CMOS down
audio/data lines
(~1 M
input
A3
VA O Serial Audio/Data Output. I²S serial data Weak
CMOS
output used to monitor voltage and current of pull-down output
SPKOUT signal and VP levels
(~1 M
— Pulled
down
B2
VA O Interrupt. Programmable, open-drain, active-
—
CMOS
— Hi-Z
low programmable interrupt output
open-drain
output
DS963F5
5