MAX9750AETI+ Maxim Integrated Products, MAX9750AETI+ Datasheet - Page 7

• Manufacturer Part Number: MAX9750AETI+
• Description: IC AMP AUDIO PWR 2.6W AB 28TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9750AETI+

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.6W x 2 @ 3 Ohm; 110mW x 2 @ 16 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(Measurement BW = 22Hz to 22kHz, T
5
4
3
2
1
0
POWER DISSIPATION vs. OUTPUT POWER
0
V
f = 1kHz
P
DD
OUT
= 5V
= P
OUTL
1
-100
-120
-110
(SPEAKER MODE)
-20
-40
-60
-70
-80
-90
-10
-30
-50
OUTPUT POWER (W)
R
0
L
3.5
3.0
2.5
2.0
1.5
1.0
0.5
+ P
= 4Ω
0
OUTR
10
vs. LOAD RESISTANCE (SPEAKER MODE)
1
2.6W Stereo Audio Power Amplifiers and
V
V
R
_______________________________________________________________________________________
CC
RIPPLE
L
2
THD+N = 1%
= 4Ω
= 5V
R
CROSSTALK vs. FREQUENCY
L
= 200mV
LEFT TO RIGHT
= 8Ω
100
(SPEAKER MODE)
LOAD RESISTANCE (Ω)
OUTPUT POWER
3
FREQUENCY (Hz)
RIGHT TO LEFT
THD+N = 10%
P-P
1k
10
4
DirectDrive Headphone Amplifiers
A
= +25°C, unless otherwise noted.)
10k
5
4
3
2
1
0
Typical Operating Characteristics (continued)
POWER DISSIPATION vs. OUTPUT POWER
0
100k
100
V
f = 1kHz
P
MAX9750C
DD
OUT
0.5
= 5V
= P
1.0
OUTL
(SPEAKER MODE)
OUTPUT POWER (W)
+ P
1.5
R
L
OUTR
= 8Ω
2.0
R
L
= 4Ω
2.5
3.0
- OUT_-
OUT_+
OUT_-
OUT_+
SHDN
AND
3.0
2.5
2.0
1.5
1.0
0.5
3.5
0
vs. LOAD RESISTANCE (SPEAKER MODE)
4.0
1
R
L
= 8Ω
THD+N = 1%
TURN-ON RESPONSE
-100
LOAD RESISTANCE (Ω)
(SPEAKER MODE)
-10
-20
-30
-40
-50
-60
-70
-80
-90
OUTPUT POWER
0
10
20ms/div
THD+N = 10%
V
A
OUTPUT REFERRED
POWER-SUPPLY REJECTION RATIO
RIPPLE
V
vs. FREQUENCY (SPEAKER MODE)
10
= 10.5dB
= 200mV
100
V
f = 1kHz
A
MAX9750C
FREQUENCY (Hz)
CC
V
MAX9750/51 toc16
P-P
= 10.5dB
= 5V
1k
100
5V/div
2V/div
100mV/div
10k
100k
7