MAX9776ETJ+ Maxim Integrated Products, MAX9776ETJ+ Datasheet - Page 8

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

Specifications of MAX9776ETJ+

• 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
• Product: Class-D
• Output Power: 1.5 W
• Common Mode Rejection Ratio (min): 45 dB
• Thd Plus Noise: 0.04 %
• Operating Supply Voltage: 2.7 V to 5.5 V
• Supply Current: 9.5 mA
• Maximum Power Dissipation: 1360 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Amplifier Class: D
• No. Of Channels: 3
• Supply Voltage Range: 2.7V To 5.5V
• Load Impedance: 4ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: TQFN
• Rohs Compliant: Yes
• For Use With: MAX9776EVKIT+ - EVALUATION KIT FOR MAX9776
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2 x 1.5W, Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
(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.)
8
DD
0.001
0.001
0.01
0.01
100
100
0.1
0.1
_______________________________________________________________________________________
10
10
1
1
= PV
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
0
0
V
R
V
R
f = 1kHz
DD
L
DD
L
DD
= 8Ω
= 8Ω
f = 20Hz
= 5V
= 5V
0.3
0.3
= CPV
vs. OUTPUT POWER
vs. OUTPUT POWER
SSM
OUTPUT POWER (W)
OUTPUT POWER (W)
0.6
0.6
DD
f = 1kHz
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
0.9
0.9
FFM
1.2
1.2
f = 10kHz
1.5
1.5
0.001
Typical Operating Characteristics (continued)
0.01
100
0.1
100
10
90
80
70
60
50
40
30
20
10
1
TOTAL HARMONIC DISTORTION PLUS NOISE
0
0
0
V
R
DD
L
= 4Ω
f = 20Hz
= 3.3V
R
L
0.8
= 8Ω
0.2
vs. OUTPUT POWER
vs. OUTPUT POWER
OUTPUT POWER (W)
OUTPUT POWER (W)
EFFICIENCY
R
L
1.6
= 4Ω
0.4
V
f
P
IN
f = 1kHz
DD
OUT
2.4
= 1kHz
DD
= 5V
= P
, I
OUTL
0.6
2
C default gain settings (INA gain = +20dB, INB gain =
f = 10kHz
3.2
+ P
OUTR
0.8
4.0
0.001
0.01
100
0.1
100
10
90
80
70
60
50
40
30
20
10
1
TOTAL HARMONIC DISTORTION PLUS NOISE
0
0
0
V
R
DD
L
= 8Ω
f = 20Hz
= 3.3V
R
L
0.4
= 8Ω
vs. OUTPUT POWER
vs. OUTPUT POWER
OUTPUT POWER (W)
OUTPUT POWER (W)
0.2
EFFICIENCY
R
0.8
L
LSP
= 4Ω
) are terminated
V
f
P
IN
DD
OUT
1.2
= 1kHz
f = 1kHz
= 3.3V
0.4
= P
OUTL
1.6
f = 10kHz
+ P
OUTR
A
=
0.6
2.0