MAX9776ETJ+T Maxim Integrated Products, MAX9776ETJ+T Datasheet - Page 7

• Manufacturer Part Number: MAX9776ETJ+T
• Description: IC AMP AUDIO PWR 1.5W D 32TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class Dr

Specifications of MAX9776ETJ+T

• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.5W x 1 @ 4 Ohm; 60mW x 2 @ 16 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: Depop, Differential Inputs, I²C, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• For Use With: MAX9776EVKIT+ - EVALUATION KIT FOR MAX9776
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
INC gain = 0dB, volume setting = 0dB, mono path gain = 0dB, SHDN = 1, SSM = 1). Speaker load resistors (R
between OUT_+ and OUT_-, headphone load resistors are terminated to GND, unless otherwise stated. C1 = C2 = C3 = 1µF. T
+25°C, unless otherwise noted.)
DD
0.001
0.001
0.01
0.01
0.1
0.1
= PV
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
V
R
V
R
DD
L
DD
DD
L
= 8Ω
= 4Ω
= 3.3V
= 5V
P
= CPV
OUT
100
2 x 1.5W, Stereo Class D Audio Subsystem
100
P
P
OUT
= 400mW
OUT
vs. FREQUENCY
vs. FREQUENCY
FREQUENCY (Hz)
FREQUENCY (Hz)
= 300mW
= 1000mW
DD
_______________________________________________________________________________________
P
OUT
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
1k
1k
= 150mW
with DirectDrive Headphone Amplifier
10k
10k
100k
100k
0.001
0.001
0.01
0.01
0.1
0.1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
10
V
R
V
R
P
DD
L
DD
L
OUT
P
= 8Ω
= 8Ω
OUT
= 5V
= 3.3V
FFM
= 500mW
= 150mW
100
100
P
OUT
vs. FREQUENCY
vs. FREQUENCY
FREQUENCY (Hz)
FREQUENCY (Hz)
= 750mW
SSM
1k
1k
Typical Operating Characteristics
DD
, I
10k
10k
2
C default gain settings (INA gain = +20dB, INB gain =
100k
100k
0.001
0.001
0.01
0.01
100
0.1
0.1
10
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
0
V
R
V
R
DD
L
P
DD
L
= 4Ω
OUT
= 4Ω
= 3.3V
= 5V
0.4
= 400mW
f = 20Hz
100
vs. OUTPUT POWER
P
vs. FREQUENCY
OUT
OUTPUT POWER (W)
FREQUENCY (Hz)
= 150mW
0.8
LSP
1k
) are terminated
1.2
10k
f = 1kHz
1.6
f = 10kHz
A
=
100k
2.0
7