
MAX9877AERP
Low RF Susceptibility, Mono Audio
Subsystem with DirectDrive Headphone Amplifier
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD = PVDD = 3.7V, VGND = VPGND = 0V. Single-ended inputs, preamp gain = 0dB, volume controls = 0dB, OSC = 00, BYPASS = 0,
SHDN = 1. Speaker loads (ZSPK) connected between OUT+ and OUT-. Headphone loads (RHP) connected from HPL or HPR to GND.
SDA and SCL pullup voltage = 3.3V. ZSPK = ∞, RHP = ∞. C1 = C2 = CBIAS = 1F. TA = TMIN to TMAX, unless otherwise noted. Typical
values are at TA = +25°C.) (Note 3)
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.
Note 1: HPR and HPL should be limited to no more than 9V above VSS, or above PVDD + 0.3V, whichever limits first.
Note 2: HPR and HPL should be limited to no more than 9V below PVDD, or below VSS - 0.3V, whichever limits first.
VDD, PVDD to PGND..............................................-0.3V to +5.5V
VDD to PVDD ..........................................................-0.3V to +0.3V
VSS to PGND .........................................................-5.5V to +0.3V
C1N to PGND..............................................(VSS - 0.3V) to +0.3V
C1P to PGND ...........................................-0.3V to (PVDD + 0.3V)
HPL, HPR to VSS
(Note 1) ......-0.3V to the lower of (PVDD - (VSS + 0.3V)) or +9V
HPL, HPR to PVDD
(Note 2) ......+0.3V to the higher of (VSS - (PVDD - 0.3V)) or -9V
GND to PGND.....................................................................±0.3V
INA1, INA2, INB1, INB2, BIAS..................................-0.3V to +4V
SDA, SCL...............................................................-0.3V to +5.5V
All Other Pins to GND...............................-0.3V to (PVDD + 0.3V)
Continuous Current In/Out of PVDD, PGND, OUT_.........±800mA
Continuous Current In/Out of HPR and HPL .....................140mA
Continuous Current In/Out of RXIN+ and RXIN- ...............150mA
Continuous Input Current VSS...........................................100mA
Continuous Input Current (all other pins) .........................±20mA
Duration of OUT_ Short Circuit to GND or PVDD........Continuous
Duration of Short Circuit Between OUT+ and OUT- ..Continuous
Duration of HP_ Short Circuit to GND or PVDD ..........Continuous
Continuous Power Dissipation (TA = +70°C)
20-Bump MaxFilm, 5 x 4, Multilayer Board
(derate 13.0mW/°C above +70°C) ..................................1.04W
Junction Temperature ......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage Range
VDD, PVDD Guaranteed by PSRR test
2.7
5.25
V
OSC = 00
5.6
9.0
HP mode,
OUTMODE = 2
OSC = 10
5.5
OSC = 00
6.6
11.0
SPK mode,
OUTMODE = 7
OSC = 10
5.7
OSC = 00
10.4
16.0
Quiescent Current
IDD
SPK + HP mode,
OUTMODE = 9
OSC = 10
9.3
mA
Shutdown Current
ISHDN
ISHDN = IVDD + IPVDD; SHDN = 0; VSDA =
VSCL = logic-high
10
22
A
OSC = 00
10
OSC = 01
10
Turn-On Time
tON
Time from shutdown to
full operation
OSC = 10
17.5
ms
BIAS Release Time
tBR
After forcing BIAS low, time from BIAS
released to I2C reset
25
80
ms
TA = +25°C, preamp gain = 0dB or +9dB
11
21
31
Input Resistance
RIN
TA = +25°C, preamp gain = +20dB
3
5.5
8
k
Preamp = 0dB
2.30
Preamp = +9dB
0.820
Maximum Input Signal Swing
Preamp = +20dB
0.230
VP-P