max9779etit Maxim Integrated Products, Inc., max9779etit Datasheet - Page 2

• Manufacturer Part Number: max9779etit
• Description: Max9779 2.6w Stereo Audio Power Amplifier And Directdrive Headphone Amplifier
• Manufacturer: Maxim Integrated Products, Inc.

ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
GND to PGND.....................................................................±0.3V
CPV
HPOUT_ to GND ....................................................................±3V
Any Other Pin .............................................-0.3V to (V
Duration of OUT_ _ Short Circuit to GND or PV
Duration of OUT_+ Short Circuit to OUT_- .................Continuous
Duration of HPOUT_ Short Circuit to GND,
Continuous Current (PV
2.6W Stereo Audio Power Amplifier and
DirectDrive Headphone Amplifier
ELECTRICAL CHARACTERISTICS
(V
terminated between OUT_+ and OUT_-, headphone load terminated between HPOUT_ and GND, GAIN1 = GAIN2 = 0V, T
T
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.
2
GENERAL
Supply Voltage Range
Headphone Supply Voltage
Quiescent Supply Current
Shutdown Supply Current
Bias Voltage
Switching Time
Input Resistance
Turn-On Time
SPEAKER AMPLIFIER (HPS = GND)
Output Offset Voltage
Power-Supply Rejection Ratio
(Note 3)
MAX
DD
V
SS
SS
_______________________________________________________________________________________
, unless otherwise noted. Typical values are at T
= PV
, C1N, V
or HPV
DD
PARAMETER
DD
= CPV
SS
.........................................................Continuous
DD
to GND .........................-6.0V to (GND + 0.3V)
, PV
DD
DD
DD
= HPV
, OUT_ _, PGND) ........................1.7A
, HPV
DD
DD
= 5V, GND = PGND = CPGND = 0V,
, CPV
V
SYMBOL
DD
CPV
HPV
I
V
PSRR
SHDN
t
V
I
t
R
SON
BIAS
DD
, PV
SW
DD
OS
IN
DD
DD
to GND)..........+6V
DD
DD
,
.....Continuous
Inferred from PSRR test
Inferred from PSRR test
HPS = GND, speaker mode, R
HPS = V
SHDN = GND
Gain or input switching
Amplifier inputs (Note 2)
Measured between OUT_+ and OUT_-,
T
PV
f = 1kHz, V
f = 10kHz, V
A
DD
DD
A
= +25°C
= +25°C.) (Note 1)
+ 0.3V)
or V
DD
DD
, headphone mode, R
RIPPLE
RIPPLE
= 4.5V to 5.5V (T
CONDITIONS
= 200mV
Continuous Current (CPV
Continuous Input Current (all other pins) .........................±20mA
Continuous Power Dissipation (T
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
= 200mV
28-Pin Thin QFN (derate 20.8mW/°C above +70°C) ..1667mW
HPOUT_) .......................................................................850mA
SHDN = V
P-P
P-P
A
L
= ∞
= +25°C)
L
DD
= ∞
, C
BIAS
DD
= 1µF, C1 = C2 = 1µF, speaker load
, C1N, C1P, CPV
MIN
4.5
3.0
1.7
10
75
A
= +70°C)
TYP
0.2
1.8
14
10
20
25
±1
90
80
55
7
SS
, V
MAX
±15
5.5
5.5
1.9
29
13
30
5
SS
, HPV
A
= T
UNITS
DD
mA
mV
MIN
ms
dB
µA
kΩ
µs
V
V
V
,
to