Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifier
ABSOLUTE_MAXIMUM_RATINGS
(Voltages with respect to GND.)
Continuous Current In/Out of COM1,
VDD, HPVDD........................................................-0.3V to +2.2V
PVDD, LDOIN.......................................................-0.3V to +6.0V
PGND ...................................................................-0.1V to +0.1V
HPVSS .................................................................-2.2V to + 0.3V
C1N .....................................(HPVSS - 0.3V) to (HPVDD + 0.3V)
C1P..........................................................- 0.3V to (VDD + 0.3V)
HPL, HPR ............................. (HPVSS - 0.3V) to (HPVDD +0.3V)
INA1, INA2, INB1, INB2, BIAS .............................-0.3V to +6.0V
SDA, SCL, SHDN .................................................-0.3V to +6.0V
COM1, COM2, NC1, NC2,
COM2, NC1, NC2...................................................... Q150mA
Continuous Input Current (all other pins)........................ Q20mA
Duration of OUT_ Short Circuit to GND
or PVDD.................................................................Continuous
Duration of Short Circuit Between OUTP
and OUTN .............................................................Continuous
Duration of HP_ Short Circuit to GND or VDD ..........Continuous
Continuous Power Dissipation (T = +70NC) Multilayer Board
A
25 WLP (derate 19.2mW/NC above +70NC) ................850mW
Junction Temperature .....................................................+150NC
Operating Temperature Range.......................... -40NC to +85NC
Storage Temperature Range............................ -65NC to +150NC
Soldering Temperature (reflows).....................................+260NC
OUTP, OUTN......................................-0.3V to (PVDD + 0.3V)
Continuous Current In/Out of PVDD, PGND, OUT_...... Q800mA
Continuous Current In/Out of HPR, HPL,
VDD, LDOIN .............................................................. Q140mA
Stresses beyond those listed under “Absolute Maximum 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 in the operational sections of the specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL_CHARACTERISTICS
(V
LDOIN
= V
= V
= 3.7V, V
= V
= 0V. Input signal applied at INA configured single-ended, preamp gain = 0dB,
PVDD
SHDN
GND
PGND
HPLVOL = HPRVOL = SPKVOL = 0dB, speaker loads (Z ) connected between OUTP and OUTN. Headphone loads (R ) con-
SPK HP
nected from HPL or HPR to GND. SDA and SCL pullup voltage = 1.8V. Z
= J, R = J. C
= C
= C
= C
HPVSS BIAS
SPK
HP
C1P-C1N
HPVDD
= 1FF. T = T
to T , unless otherwise noted. Typical values are at T = +25NC.) (Note 1)
MAX A
A
MIN
PARAMETER
SYMBOL
CONDITIONS
Guaranteed by PSRR test
MIN
TYP
MAX
UNITS
Speaker Amplifier Supply-
Voltage Range
V
PVDD
2.7
5.5
V
Headphone Amplifier Supply
Voltage Range
VDD
Guaranteed by PSRR test
Guaranteed by PSRR test
1.6
2.5
2
V
V
LDO Input Supply-Voltage Range
V
5.5
2
LDOIN
I
I
I
I
I
I
1.45
0.4
Low-power mode, T = +25NC,
LDOIN
PVDD
LDOIN
PVDD
LDOIN
PVDD
A
LPMODE = 0x01
0.7
2
1.45
0.79
0.42
1.38
1.45
1.8
HP mode, T = +25NC, stereo SE
A
input on INA, INB disabled
1.2
0.75
2.2
2
Quiescent Supply Current
mA
SPK mode, T = +25NC mono
A
differential input on INB, INA disabled
I
SPK + HP mode, T = +25NC stereo LDOIN
A
SE input on INA, INB disabled
I
I
I
2.7
175
110
PVDD
PVDD
LDOIN
90
T
= +25NC, internal gain, software
A
60
Shutdown Current
Turn-On Time
I
FA
SHDN
T
= +25NC, internal gain, I
+ I
,
A
PVDD
LDOIN
1
hardware
Time from power-on to full operation
including soft-start
t
8
ms
ON
Gain = -6dB, -3dB
Gain = 0dB to +9dB
Gain = +18dB
41.2
20.6
7.2
T
= +25NC,
A
Input Resistance
R
16
5.5
19
27
9.5
21
kI
kI
IN
internal gain
Feedback Resistance
R
T
= +25NC, external gain
A
20
F
5
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