MAX9729 Maxim Integrated Products, MAX9729 Datasheet - Page 2

• Manufacturer Part Number: MAX9729
• Description: Stereo Headphone Amplifier
• Manufacturer: Maxim Integrated Products

ABSOLUTE MAXIMUM RATINGS
V
V
PV
SGND to PGND...................................................................±0.3V
C1P to PGND..............................................-0.3V to (V
C1N to PGND............................................(PV
PV
INL_, INR_, BEEP to SGND............(SV
SDA, SCL, BEEP_EN to PGND.................................-0.3V to +4V
SHDN to PGND ..........................................-0.3V to (V
OUT_ to PGND ............................................................-3V to +3V
BM_ to SGND ..............................................................-2V to +2V
Duration of OUT_ Short Circuit to PGND....................Continuous
Stereo Headphone Amplifier with BassMax,
Volume Control, and Input Mux
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 (3V Supply)
(V
setting = -16dB (overall gain = -10dB), BassMax disabled. Load connected between OUT_ and PGND where specified. THD+N
measurement BW = 22Hz to 22kHz. T
2
GENERAL
Supply Voltage Range
Charge-Pump and Logic Supply
Voltage
Quiescent Supply Current
Shutdown Supply Current
Turn-On Time
Beep Enable Time
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
HEADPHONE AMPLIFIER
Input Resistance
Output Offset Voltage
BMR, BML Input Bias Current
DD
DD
DD
SS
SS
, PV
_______________________________________________________________________________________
to PV
, SV
to SV
= PV
DD
SS
DD
DD
SS
to PGND or SGND .................................-0.3V to +4V
to PGND ................................................+0.3V to -4V
PARAMETER
................................................Internally Connected
.......................................................................±0.3V
= SHDN = 3V, PGND = SGND = 0V, C1 = C2 = C3 = 1µF, BM_ = 0V, maximum gain setting = 6dB, volume attenuation
A
SS
= T
I
SYMBOL
t
- 0.3V) to (V
I
DD_SHDN
ON_BEEP
T
BIAS_BM
V
T
PV
THRES
MIN
V
HYST
OSHP
I
t
R
ON
DD
DD
SS
IN
DD
to T
- 0.3V) to +0.3V
MAX
DD
DD
DD
(Note 2)
(Note 2)
No load, BEEP_EN = V
V
From shutdown mode to full operation
Applicable to all maximum gain and
volume settings
Measured between OUT_ and SGND,
overall gain = -10dB (Note 3)
SHDN
, unless otherwise noted. Typical values are at T
+ 0.3V)
+ 0.3V)
+ 0.3V)
= 0V
CONDITIONS
Continuous Current Into/Out of:
Continuous Power Dissipation (T
Junction-to-Ambient Thermal Resistance (θ
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
OUT_ ESD Protection (Human Body Model) .......................±8kV
ESD Protection of All Other Pins ..........................................±2kV
Lead Temperature (soldering, 10s) .................................+300°C
V
All other pins.................................................................±20mA
28-Pin Thin QFN (derate 28.6mW/°C above +70°C) 0.2286mW
28-Pin TQFN.................................................................35°C/W
DD
DD
, C1P, C1N, PGND, PV
(Note 3)
MIN
1.8
1.8
SS
14
, SV
A
A
= +70°C, multilayer board)
= +25°C.) (Note 1)
SS
±0.7
TYP
, or OUT_ .............±0.85A
±10
200
146
5.5
12
13
25
5
JA
)
±100
MAX
±3.5
3.6
3.6
10
35
8
UNITS
mA
mV
kΩ
µA
nA
µs
µs
°C
°C
V
V