MAX9791AETI+T Maxim Integrated Products, MAX9791AETI+T Datasheet - Page 4

• Manufacturer Part Number: MAX9791AETI+T
• Description: IC AMP AUDIO 2.2W STER D 28TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class Dr

Specifications of MAX9791AETI+T

• Output Type: 2-Channel (Stereo) with Stereo Headphones and Subwoofer
• Max Output Power X Channels @ Load: 2.2W x 2 @ 4 Ohm; 180mW x 2 @ 32 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, LDO, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Windows Vista-Compliant Class D Speaker
Amplifiers with DirectDrive Headphone Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V
C1 = C2 = 1µF. R
C
4
Class D Switching Frequency
Spread-Spectrum Bandwidth
Efficiency
HEADPHONE AMPLIFIER
Output Power
Total Harmonic Distortion Plus
Noise
Power-Supply Rejection Ratio
Feedback Impedance
Gain
Output Offset Voltage
Click-and-Pop Level
Signal-to-Noise Ratio
Noise
Maximum Capacitive Load
Crosstalk
IN2
AVDD
_______________________________________________________________________________________
= C
= V
COM
PARAMETER
PVDD
= 1µF, T
= V
L
= ∞, unless otherwise specified. R
HPVDD
A
= T
MIN
= 5V, V
to T
MAX
GND
SYMBOL
THD+N
, unless otherwise noted. Typical values are at T
PSRR
P
R
f
SNR
V
K
SPK
A
V
C
OUT
FHP
OS
CP
= V
N
V
L
PGND
P
THD+N = 1%,
f = 1kHz,
T
R
V
R
V
R
R
V
f = 1kHz, V
f = 10kHz, V
R
T
R
peak voltage,
A-weighted, 32 samples
per second (Notes 6, 7)
R
f
A-weighted
No sustained oscillations
L to R, R to L, f
= 1kHz, COM
and SENSE
connected
L to R, R to L, f
= 15kHz, COM
and SENSE
connected
SPKR to HP, R
R
IN
OUT
A
A
IN
IN
HPVDD
L
L
L
L
IN2
L
L
LHP
= V
= +25°C
= 32 , f
= 10k , f
= 32 , P
= 16 , P
= +25°C
= 32 ,
= 32 , P
= 1kHz
= -3dBFS = 212mV
= -3dBFS = 500mV
= 40.2k
CPGND
= 1.5W, f
= 32 , f
IN1
= 2.7V to 5.5V, T
= 20kΩ (A
RIPPLE
IN
OUT
OUT
OUT
IN
RIPPLE
= 0, I
= 6kHz, 20kHz AES17,
IN
LSPKR
IN
CONDITIONS
IN
IN
= 6kHz, 20kHz AES17,
= 100mW, f = 1kHz
= 75mW, f = 1kHz
= 40mW,
= 1Hz
= 1kHz, R
= 200mV
LDO_OUT
R
-20dBFS = 30mV
R
-20dBFS = 0.7mV
R
-20dBFS = 30mV
R
-20dBFS = 70.7mV
= 200mV
VSPKR
L
L
L
L
= 8 , P
= 32 , V
= 10k , V
= 32 , V
= 10k , V
RMS
RMS
R
R
A
L
L
= 16
= 32
= +25°C
= 12dB), R
L
Into shutdown
Out of
shutdown
A-weighted
20Hz to 20kHz
P-P
= 0, C
SPKR
P-P
= 8
IN
IN
IN
IN
=
=
= 1W,
(Note 5)
LDO
=
=
RMS
RMS
A
RMS
RMS
IN2
= +25°C.) (Note 3)
= 2µF (C
= 40.2kΩ (A
MIN
38.2
948
70
LDO
= 4µF for 1.8V LDO option),
VHP
0.006
0.014
-72.5
TYP
±0.3
±15
40.2
100
180
107
102
100
-78
-87
-81
83
91
80
94
82
89
64
70
80
0
8
= 0dB), C
MAX
1158
42.2
±3
IN1
= 470nF,
UNITS
µV
dBFS
kHz
kHz
dBV
mW
mV
k
dB
dB
dB
pF
dB
%
%
RMS