max9724a Maxim Integrated Products, Inc., max9724a Datasheet - Page 2

• Manufacturer Part Number: max9724a
• Description: 60mw, Directdrive, Stereo Headphone Amplifier With Low Rf Susceptibility And Shutdown
• Manufacturer: Maxim Integrated Products, Inc.

ABSOLUTE MAXIMUM RATINGS
V
PV
PGND to SGND .....................................................-0.3V to +0.3V
C1P to PGND..............................................-0.3V to (V
C1N to PGND............................................(PV
PV
IN_ to SGND (MAX9724A)..........................-0.3V to (V
IN_ to SGND (MAX9724B) .............(SV
OUT_ to SV
OUT_ to V
SHDN to _GND.........................................................-0.3V to +6V
OUT_ Short Circuit to GND ........................................Continuous
Short Circuit between OUTL and OUTR ....................Continuous
ELECTRICAL CHARACTERISTICS
(V
(R
are at T
60mW, DirectDrive, Stereo Headphone Amplifier
with Low RF Susceptibility and Shutdown
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
Note 1: OUTR and OUTL should be limited to no more than 9V above SV
Note 2: OUTR and OUTL should be limited to no more than 9V below V
GENERAL
Supply Voltage Range
Quiescent Current
Shutdown Current
Shutdown to Full Operation
Input Impedance
Output Offset Voltage
Power-Supply Rejection Ratio
Output Power (TQFN)
Output Power (UCSP)
Voltage Gain
Channel-to-Channel Gain Tracking
Total Harmonic Distortion Plus
Noise (TQFN) (Note 6)
Total Harmonic Distortion Plus
Noise (UCSP) (Note 6)
Signal-to-Noise Ratio
DD
DD
IN
SS
SS
_______________________________________________________________________________________
to GND ..............................................................-0.3V to +6V
= 20kΩ, R
to SV
and SV
= 5V, PGND = SGND, SHDN = 5V, C1 = C2 = 1µF, R
A
= +25°C, unless otherwise noted.) (Note 3)
DD
SS
SS
PARAMETER
SS
(Note 2) ......+0.3V to Max (SV
.........................................................-0.3V to +0.3V
(Note 1) ....-0.3V to Min (V
F
to PGND..........................................-6V to +0.3V
= 30kΩ); for MAX9724B gain = -1.5V/V (internally set), T
SS
SYMBOL
THD+N
THD+N
I
DD
PSRR
P
P
SHDN
t
- 0.3V) to (V
SNR
V
V
I
SON
R
OUT
OUT
A
CC
DD
OS
IN
SS
V
- SV
SS
- V
- 0.3V) to +0.3V
SS
DD
Guaranteed by PSRR test
SHDN = SGND = PGND
MAX9724B, measured at IN_
(Note 4)
V
f = 1kHz, 100mV
f = 20kHz, 100mV
R
R
R
R
MAX9724B (Note 5)
MAX9724B
R
R
R
R
R
R
R
V
R
P
+ 0.3V, +9V)
DD
OUT
OUT
L
L
L
L
L
L
L
L
L
L
L
L
- 0.3V, -9V)
DD
DD
DD
= 32Ω, THD+N = 1%
= 16Ω, THD+N = 1%
= 32Ω, THD+N = 1%
= 16Ω, THD+N = 1%
= 1kΩ, V
= 32Ω, P
= 16Ω, P
= 1kΩ, V
= 32Ω, P
= 16Ω, P
= 1kΩ,
= 32Ω,
= 2.7V to 5.5V, T
= 2V
= 50mW
+ 0.3V)
+ 0.3V)
+ 0.3V)
RMS
L
OUT
OUT
OUT
OUT
OUT
OUT
= ∞, resistive load reference to ground; for MAX9724A gain = -1.5V/V
CONDITIONS
P-P
= 2V
= 50mW, f
= 35mW, f
= 2V
= 45mW, f
= 32mW, f
P-P
Continuous Input Current into PV
Continuous Input Current (any other pin) .........................±20mA
Continuous Power Dissipation (T
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Bump Temperature (soldering) Reflow............................+235°C
(Note 4)
BW = 22Hz to 22kHz
A-weighted
BW = 22Hz to 22kHz
A-weighted
12-Bump UCSP (derate 6.5mW/°C above +70°C) ........519mW
θ
12-Pin TQFN (derate 16.7mW/°C above +70°C) .........1333mW
θ
θ
RMS
RMS
A
(Note 4)
JA
JA
JC
DD
= +25°C
SS
A
..................................................................................60°C/W
..................................................................................11°C/W
................................................................................154 C/W
, or below SV
, f
, f
= -40°C to +85°C, unless otherwise noted. Typical values
, or above V
IN
IN
IN
IN
IN
IN
= 1kHz
= 1kHz
= 1kHz
= 1kHz
= 1kHz
= 1kHz
DD
SS
- 0.3V, whichever limits first.
+ 0.3V, whichever limits first.
-1.52
MIN
2.7
12
69
30
25
A
SS
= +70°C, Multilayer board)
..................................260mA
±0.15
0.003
0.003
±1.5
TYP
0.02
0.04
0.03
0.05
-1.5
180
102
105
101
3.5
0.1
19
86
80
65
63
42
45
35
98
MAX
-1.48
±10
5.5
5.5
28
1
UNITS
mW
mW
mA
mV
V/V
kΩ
dB
dB
µA
µs
%
%
%
V