MAX9791AETI+T Maxim Integrated Products, MAX9791AETI+T Datasheet - Page 14

• 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
(V
erwise specified. R
= 20kHz AES17, T
HP_EN = 1.)
14
AVDD
20
15
10
-5
______________________________________________________________________________________
5
0
4.50
SUPPLY CURRENT vs. SUPPLY VOLTAGE
= V
LDO_EN = 1, V
SPKR_EN = 0
HP_EN = 1
SPKR_EN = 1
HP_EN = 0
PVDD
4.75
= V
SUPPLY VOLTAGE (V)
A
IN1
LDO
= +25°C, unless otherwise noted. Speaker mode: SPKR_EN = 0, HP_EN = 0. Headphone mode: SPKR_EN = 1,
HPVDD
= 3.3V OR 4.75V
= 20kΩ (A
5.00
SPKR_EN = 1
HP_EN = 1
SPKR_EN = 0
HP_EN = 0
= 5V, V
5.25
VSPKR
GND
5.50
= 12dB), R
= V
PGND
Typical Operating Characteristics (continued)
= V
20
15
10
-5
IN2
5
0
2.5
SUPPLY CURRENT vs. SUPPLY VOLTAGE
CPGND
= 40.2kΩ (A
LDO_EN = 1
V
LDO_OUT
3.0
= 0, I
GENERAL
= 1.8V
SUPPLY VOLTAGE (V)
3.5
SPKR_EN = 1
LDO_OUT
VHP
SPKR_EN = 1
4.0
= 0dB), C
SPKR_EN = 0
4.5
SPKR_EN = 0
= 0, C
5.0
IN1
LDO
= 470nF, C
5.5
= 2 x 1µF, C1 = C2 = 1µF. R
8
7
6
5
4
3
2
1
0
IN2
SHUTDOWN CURRENT vs. SUPPLY VOLTAGE
2.5
SPKR_EN = 1
HP_EN = 0
LDO_EN = 0
= C
3.0
COM
SUPPLY VOLTAGE (V)
3.5
= 1µF, measurement BW
4.0
L
= ∞, unless oth-
4.5
5.0
5.5