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SLOS563 – MARCH 2008
TERMINAL FUNCTIONS (continued)
TERMINAL
NAME
RESET
NO.
16
TYPE
(1)
5-V
TOLERANT
5-V
TERMINATION
(2)
DESCRIPTION
Reset, active-low. A system reset is generated by applying a logic low
to this terminal. RESET is an asynchronous control signal that sets
the VALID outputs low, and places the PWM in the hard-mute state
(stops switching). Gain is immediately set to full attenuation. Upon the
release of RESET, if PDN is high, the system performs a 4- to 5-ms
device initialization and sets the gain, output configuration, and format
to the settings determined by the hardware pins.
Serial audio data clock (shift clock). SCLK is the serial audio port input
data bit clock.
Serial audio data-1 input is one of the serial data input ports. SDIN1
supports three discrete (stereo) data formats.
Serial audio data-2 input is one of the serial data input ports. SDIN2
supports three discrete (stereo) data formats.
Subwoofer negative PWM output
Subwoofer positive PWM output
Output indicating validity of all PWM channels, active high. Connect
this pin to an external power stage or leave floating.
Internally generated voltage supply for channels A and B gate drive.
Not to be used as a supply or connected to any component other than
the decoupling capacitor
Internally generated voltage supply for channels C and D gate drive.
Not to be used as a supply or connected to any component other than
the decoupling capacitor
Internally regulated 1.8-V analog supply voltage. This terminal must
not be used to power external devices.
Internally regulated 1.8-V digital supply voltage. This terminal must not
be used to power external devices.
DI
Pullup
SCLK
SDIN1
SDIN2
SUB_PWM–
SUB_PWM+
VALID
VCLAMP_AB
23
25
24
39
40
38
60
DI
DI
DI
DO
DO
DO
P
5-V
5-V
5-V
VCLAMP_CD
54
P
VR_ANA
VR_DIG
VREG_EN
14
27
18
P
P
DI
Pulldown
Voltage regulator enable. Connect directly to GND.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)
DVDD, AVDD
PVCC_X
3.3-V digital input
5-V tolerant
(2)
(1)
VALUE
Supply voltage
Input voltage
–0.3 to 3.6
-0.3 to 30
–0.5 to DVDD + 0.5
–0.5 to 6
±20
±20
0 to 85
0 to 150
–40 to 125
digital input
UNIT
V
V
V
V
mA
mA
°C
°C
°C
Input clamp current, I
IK
(V
I
< 0 or V
I
> 1.8 V
Output clamp current, I
OK
(V
O
< 0 or V
O
> 1.8 V
Operating free-air temperature
Operating junction temperature range
Storage temperature range, T
stg
(1)
(2)
Stresses beyond those listed under
absolute ratings
may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under
recommended operation conditions
are
not implied. Exposure to absolute-maximum conditions for extended periods may affect device reliability.
5-V tolerant inputs are PDN, RESET, MUTE, SCLK, LRCLK, MCLK, SDIN1, and SDIN2.
Copyright © 2008, Texas Instruments Incorporated
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