MAX9777ETI+T Maxim Integrated Products, MAX9777ETI+T Datasheet - Page 7

• Manufacturer Part Number: MAX9777ETI+T
• Description: IC AMP AUDIO PWR 2.6W AB 28TQFN
• Manufacturer: Maxim Integrated Products
• Type: Class ABr

Specifications of MAX9777ETI+T

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.6W x 2 @ 4 Ohm; 200mW x 2 @ 16 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, I²C, Input Multiplexer, Mute, Shutdown, Thermal Protection
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
DD
= PV
OUT_+ AND OUT_-
OUT_+ - OUT_-
DD
200mV/div
= 5V, GND = PGND = 0V, V
0.0001
1V/div
2V/div
0.001
0.01
V
100
0.1
40
50
60
70
80
90
DD
1
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
ENTERING SHUTDOWN (SPEAKER MODE)
_______________________________________________________________________________________
vs. FREQUENCY (HEADPHONE MODE)
V
P
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (SPEAKER MODE)
RIPPLE
OUT
P
Stereo 3W Audio Power Amplifiers with
OUT
= 25mW
= 100mW
= 200mV
100
100
FREQUENCY (Hz)
FREQUENCY (Hz)
P-P
400ms/div
P
OUT
1k
1k
= 50mW
P
OUT
SHDN
= 150mW
10k
10k
Headphone Drive and Input Mux
R
A
MAX9777/78 toc20
L
V
= 16Ω
= 1V/V
= 5V, C
Typical Operating Characteristics (continued)
100k
100k
BIAS
= 1µF, T
A
= +25°C, unless otherwise noted.)
OUT_+ AND OUT_-
OUT_+ - OUT_-
500mV/div
0.0001
1V/div
2V/div
SHDN
0.001
-100
-110
-120
0.01
-40
-50
-60
-70
-80
-90
0.1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
EXITING SHUTDOWN (SPEAKER MODE)
vs. FREQUENCY (HEADPHONE MODE)
P
V
R
P
OUT
IN
L
OUT
= 8Ω
= 200mV
CROSSTALK vs. FREQUENCY
= 25mW
RIGHT TO LEFT
= 100mW
100
100
(SPEAKER MODE)
P-P
LEFT TO RIGHT
FREQUENCY (Hz)
FREQUENCY (Hz)
P
100ms/div
OUT
1k
1k
= 50mW
P
OUT
= 150mW
10k
10k
R
A
MAX9777/78 toc21
L
V
= 16Ω
= 2V/V
100k
100k
7