MAX9776ETJ+T Maxim Integrated Products, MAX9776ETJ+T Datasheet - Page 11

• 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
0.01
0.1
16
14
12
10
8
6
4
1
= PV
TOTAL HARMONIC DISTORTION PLUS NOISE
2.7
10
SP MODE
INPUTS AC GROUNDED
OUTPUTS UNLOADED
V
R
DD
L
DD
= 16Ω
P
= 3.3V
MAX9776 SUPPLY CURRENT
P
OUT
3.2
OUT
= CPV
100
vs. SUPPLY VOLTAGE
2 x 1.5W, Stereo Class D Audio Subsystem
= 40mW
= 20mW
SUPPLY VOLTAGE (V)
vs. FREQUENCY
3.7
FREQUENCY (Hz)
DD
______________________________________________________________________________________
1k
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
4.2
with DirectDrive Headphone Amplifier
4.7
10k
5.2
100k
0.001
Typical Operating Characteristics (continued)
0.01
100
0.1
90
80
70
60
50
40
30
20
10
1
0
TOTAL HARMONIC DISTORTION PLUS NOISE
2.7
10
V
R
DD
L
= 32Ω
P
SHUTDOWN SUPPLY CURRENT
= 3.3V
OUT
3.2
P
OUT
100
= 40mW
vs. SUPPLY VOLTAGE
= 10mW
SUPPLY VOLTAGE (V)
vs. FREQUENCY
FREQUENCY (Hz)
3.7
1k
4.2
DD
4.7
, I
10k
2
C default gain settings (INA gain = +20dB, INB gain =
5.2
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
DD
L
f = 20Hz
= 32Ω
P
= 32Ω
= 5V
OUT
= 5V
100
= 20mW
20
P
vs. OUTPUT POWER
OUTPUT POWER (mW)
OUT
vs. FREQUENCY
FREQUENCY (Hz)
= 40mW
LSP
f = 1kHz
1k
40
) are terminated
10k
60
f = 10kHz
A
100k
=
80
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