MAX9791AETI+T Maxim Integrated Products, MAX9791AETI+T Datasheet - Page 5

• 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

ELECTRICAL CHARACTERISTICS (continued)
(V
C1 = C2 = 1µF. R
C
COM Input Range
Common-Mode Rejection Ratio
Slew Rate
Charge-Pump Frequency
BEEP INPUT (LDO_EN = 1)
Beep Signal Minimum
Amplifier Turn-On Time
Amplifier Hold Time
LOW-DROPOUT LINEAR REGULATOR
LDO Ground Current
Output Current
Current Limit
Crosstalk
Output-Voltage Accuracy
Dropout Voltage
Startup Time
Line Regulation
Load Regulation
Ripple Rejection
Output-Voltage Noise
DIGITAL INPUTS (
Input-Voltage High
Input-Voltage Low
Input Bias Current
Amplifiers with DirectDrive Headphone Amplifiers
IN2
AVDD
= C
= V
COM
PARAMETER
PVDD
= 1µF, T
= V
L
Windows Vista-Compliant Class D Speaker
= ∞, unless otherwise specified. R
_______________________________________________________________________________________
HPVDD
A
= T
MIN
= 5V, V
, HP_EN, LDO_EN, BEEP)
to T
MAX
GND
t
SYMBOL
HOLDBEEP
t
ONBEEP
CMRR
, unless otherwise noted. Typical values are at T
V
f
f
V
V
BEEP
I
I
V
I
OSC
COM
LDO
OUT
SR
LIM
INH
INL
DO
= V
PGND
Inferred from CMRR test
-300mV < V
Four-cycle count
Inferred from load regulation
Speaker to LDO, V
f =1kHz, I
= 1.2W, R
V
V
V
T
V
I
V
I
V
I
V
120mA
V
V
I
20Hz to 20kHz, C
I
LDO_OUT
LDO_OUT
LDO_OUT
LDO_OUT
LDO_OUT
A
LDO_OUT
LDO_OUT
LDO_OUT
AVDD
AVDD
AVDD
LDO_OUT
RIPPLE
LDO_OUT
= V
= +25°C (Note 8)
CPGND
IN1
= 5V to 5.5V, V
= 4.5V to 5.5V, V
= 3V to 5.5V, V
= 200mV
= 20kΩ (A
= 1mA, C
= 1mA, C
= 1mA, C
= 10mA
= 120mA
LDO_OUT
L
= 4.75V
= 3.3V
= 4.75V,
= 4.75V, 1mA < I
= 4.75V
COM
= 8
= 0, I
CONDITIONS
< +300mV
(Note 6)
P-P
LDO_OUT
LDO_OUT
LDO_OUT
= 10mA, speaker P
LDO
LDO
LDO
VSPKR
,
LDO_OUT
LDO_OUT
LDO_OUT
= 2µF
= 2µF
= 4µF
I
I
f = 1kHz
f = 10kHz
OUT
OUT
= 12dB), R
= 2 x 1µF,
= 4.75V,
LDO_OUT
= 0, C
= 50mA
= 120mA
= 4.75V,
= 1.8V,
= 3.3V,
LDO
A
<
IN2
= +25°C.) (Note 3)
OUT
= 2µF (C
= 40.2kΩ (A
-300
215
221
-4.8
-6.4
MIN
1.4
-4
-1
LDO
= 4µF for 1.8V LDO option),
VHP
0.25
0.22
TYP
0.38
246
300
106
130
530
0.4
-80
1.5
0.2
2.5
60
46
30
56
40
= 0dB), C
+300
MAX
±1.5
±1.5
+4.8
+6.4
271
120
0.4
0.4
+4
+1
IN1
= 470nF,
mV/mA
UNITS
µV
mV/V
V/µs
kHz
mA
mA
mA
mV
ms
ms
mV
dB
Hz
dB
dB
µA
µs
%
RMS
V
V
5