MAX9779ETI+ Maxim Integrated Products, MAX9779ETI+ Datasheet - Page 5

• Manufacturer Part Number: MAX9779ETI+
• Description: IC AMP AUDIO PWR 2.6W AB 28TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9779ETI+

• 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
• 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
0.0001
0.001
0.001
0.01
0.01
100
0.1
0.1
3.5
3.0
2.5
2.0
1.5
1.0
0.5
10
10
1
1
0
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
vs. LOAD RESISTANCE (SPEAKER MODE)
10
0
1
vs. OUTPUT POWER (SPEAKER MODE)
V
R
V
R
f = 1kHz
vs. FREQUENCY (SPEAKER MODE)
DD
L
DD
L
THD+N = 1%
0.5
= 3Ω
= 3Ω
= 5V
= 5V
OUTPUT POWER = 1.5W
OUTPUT POWER = 500mW
f = 20Hz
100
1.0
LOAD RESISTANCE (Ω)
OUTPUT POWER (W)
OUTPUT POWER
FREQUENCY (Hz)
f = 10kHz
THD+N = 10%
1.5
_______________________________________________________________________________________
2.6W Stereo Audio Power Amplifier and
10
1k
2.0
2.5
10k
3.0
3.5
A
100k
100
= +25°C, unless otherwise noted.)
DirectDrive Headphone Amplifier
0.0001
0.001
0.001
0.01
0.01
0.1
100
10
0.1
10
1
5
4
3
2
1
0
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
POWER DISSIPATION vs. OUTPUT POWER
0
10
0
vs. OUTPUT POWER (SPEAKER MODE)
V
f = 1kHz
P
V
R
V
R
DD
L
DD
OUT
vs. FREQUENCY (SPEAKER MODE)
DD
L
= 4Ω
= 4Ω
f = 1kHz
= 5V
= 5V
= 5V
0.5
= P
OUTPUT POWER = 1.25W
OUTPUT POWER = 500mW
f = 20Hz
OUTL
100
1
(SPEAKER MODE)
OUTPUT POWER (W)
R
OUTPUT POWER (W)
1.0
L
+ P
FREQUENCY (Hz)
= 4Ω
f = 10kHz
OUTR
1.5
2
1k
Typical Operating Characteristics
R
L
= 8Ω
2.0
10k
3
2.5
100k
3.0
4
0.0001
0.001
0.001
-100
0.01
0.01
-10
-20
-30
-40
-50
-60
-70
-80
-90
100
0.1
10
0.1
10
1
0
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
0
vs. OUTPUT POWER (SPEAKER MODE)
V
OUTPUT REFERRED
V
R
V
R
POWER-SUPPLY REJECTION RATIO
RIPPLE
vs. FREQUENCY (SPEAKER MODE)
vs. FREQUENCY (SPEAKER MODE)
DD
L
DD
L
= 8Ω
= 8Ω
OUTPUT POWER = 600mW
f = 1kHz
OUTPUT POWER = 100mW
= 5V
= 5V
= 200mV
100
100
f = 20Hz
0.5
OUTPUT POWER (W)
FREQUENCY (Hz)
FREQUENCY (Hz)
P-P
f = 10kHz
1k
1k
1.0
10k
10k
1.5
100k
100k
5