MAX9777ETI+T Maxim Integrated Products, MAX9777ETI+T Datasheet - Page 9

• 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
120
100
80
60
40
20
0
= PV
POWER DISSIPATION vs. OUTPUT POWER
0
100mV/div
DD
HP JACK
OUT_+
2V/div
1V/div
SHDN
= 5V, GND = PGND = 0V, V
-100
-110
-120
-40
-50
-60
-70
-80
-90
50
(HEADPHONE MODE)
OUTPUT POWER (mW)
ENTERING SHUTDOWN (HEADPHONE MODE)
10
V
R
_______________________________________________________________________________________
IN
L
= 16Ω
= 200mV
100
CROSSTALK vs. FREQUENCY
Stereo 3W Audio Power Amplifiers with
RIGHT TO LEFT
100
(HEADPHONE MODE)
P-P
LEFT TO RIGHT
FREQUENCY (Hz)
150
100ms/div
R
f = 1kHz
L
1k
= 16Ω
200
SHDN
10k
MAX9777/78 toc38
Headphone Drive and Input Mux
= 5V, C
70
60
50
40
30
20
10
Typical Operating Characteristics (continued)
0
100k
POWER DISSIPATION vs. OUTPUT POWER
0
BIAS
20
(HEADPHONE MODE)
= 1µF, T
OUTPUT POWER (mW)
40
A
= +25°C, unless otherwise noted.)
60
200mV/div
HP JACK
R
f = 1kHz
80
L
OUT_+
2V/div
1V/div
SHDN
= 32Ω
25
20
15
10
5
0
4.50
100
EXITING SHUTDOWN (HEADPHONE MODE)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
R
INPUT AC-COUPLED TO GND
L
= 16Ω
4.75
T
100
(SPEAKER MODE)
SUPPLY VOLTAGE (V)
A
40
50
60
70
80
90
T
= +85°C
A
10
= +25°C
100ms/div
vs. FREQUENCY (HEADPHONE MODE)
V
POWER-SUPPLY REJECTION RATIO
RIPPLE
5.00
T
A
= -40°C
= 200mV
100
5.25
FREQUENCY (Hz)
MAX9777/78 toc37
P-P
1k
5.50
10k
100k
9