MAX9750CETI+T Maxim Integrated Products, MAX9750CETI+T Datasheet - Page 9

• Manufacturer Part Number: MAX9750CETI+T
• Description: IC AMP AUDIO PWR 2.6W AB 28TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9750CETI+T

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.2W 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

0.001
(Measurement BW = 22Hz to 22kHz, T
1000
0.01
100
0.1
10
1
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
0
V
R
A
DD
L
V
10
= 32Ω
= 3dB
= 3.3V
20
OUTPUT POWER (mW)
-100
-120
125
100
-20
-40
-60
-80
30 40
75
50
25
0
0
3.0
10
OUTPUT POWER vs. SUPPLY VOLTAGE
2.6W Stereo Audio Power Amplifiers and
f = 1kHz
V
V
R
_______________________________________________________________________________________
CC
RIPPLE
L
= 32Ω
50
RIGHT TO LEFT
= 5V
CROSSTALK vs. FREQUENCY
3.5
= 200mV
100
60
(HEADPHONE MODE)
(HEADPHONE MODE)
SUPPLY VOLTAGE (V)
LEFT TO RIGHT
R
70
L
FREQUENCY (Hz)
= 16Ω
4.0
P-P
80
1k
R
L
90
4.5
A
DirectDrive Headphone Amplifiers
= 32Ω
= +25°C, unless otherwise noted.)
10k
5.0
Typical Operating Characteristics (continued)
180
160
140
120
100
80
60
40
20
0
100k
5.5
10
OUTPUT POWER vs. LOAD RESISTANCE
THD+N = 1%
THD+N = 10%
(HEADPHONE MODE)
LOAD RESISTANCE (Ω)
100
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
200
180
160
140
120
100
80
60
40
20
0
1000
0
10
10
CAPACITANCE AND LOAD RESISTANCE
vs. FREQUENCY (HEADPHONE MODE)
V
A
OUTPUT REFERRED
OUTPUT POWER vs. CHARGE-PUMP
C1 = C2 = 1μF
POWER-SUPPLY REJECTION RATIO
RIPPLE
V
= 10.5dB
= 200mV
250
225
200
175
150
125
100
100
20
75
50
25
0
LOAD RESISTANCE (Ω)
POWER DISSIPATION vs. OUTPUT POWER
0
FREQUENCY (Hz)
P-P
25
C1 = C2 = 2.2μF
1k
30
50 75 100 125
(HEADPHONE MODE)
OUTPUT POWER (mW)
V
f = 1kHz
THD+N = 1%
10k
DD
40
= 5V
V
f = 1kHz
P
DD
OUT
150 175
= 5V
100k
= P
50
OUTL
200
+ P
OUTR
225
250
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