MAX9776ETJ+ Maxim Integrated Products, MAX9776ETJ+ Datasheet - Page 12

• 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
12
(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.)
0.001
DD
0.01
100
0.1
10
500
450
400
350
300
250
200
150
100
1
50
______________________________________________________________________________________
TOTAL HARMONIC DISTORTION PLUS NOISE
= PV
0
0
0
V
R
DD
L
f = 20Hz
= 16Ω
DD
= 3.3V
= CPV
30
TOTAL OUTPUT POWER (mW)
f = 1kHz
vs. OUTPUT POWER
POWER DISSIPATION
OUTPUT POWER (mW)
vs. OUTPUT POWER
40
DD
60
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
V
f = 1kHz
R
P
DD
L
OUT
= 32Ω
= 5V
= P
80
90
OUTR
f = 10kHz
+ P
OUTL
120
120
0.001
0.01
Typical Operating Characteristics (continued)
500
450
400
350
300
250
200
150
100
100
0.1
50
10
0
1
TOTAL HARMONIC DISTORTION PLUS NOISE
0
0
V
R
DD
L
f = 20Hz
= 32Ω
= 3.3V
TOTAL OUTPUT POWER (mW)
40
20
POWER DISSIPATION
vs. OUTPUT POWER
vs. OUTPUT POWER
OUTPUT POWER (mW)
R
R
L
f = 1kHz
L
= 16Ω
= 32Ω
80
40
V
f = 1kHz
P
DD
OUT
DD
= 3.3V
= P
, I
OUTR
120
60
f = 10kHz
2
C default gain settings (INA gain = +20dB, INB gain =
+ P
OUTL
160
80
0.001
0.01
100
0.1
10
1
65
60
55
50
45
40
35
30
TOTAL HARMONIC DISTORTION PLUS NOISE
0
2.7
vs. COMMON-MODE VOLTAGE
0.5
3.2
COMMON-MODE VOLTAGE (V)
V
f
P
GAIN = +3dB
R
IN
DD
OUT
L
vs. SUPPLY VOLTAGE
= 1kHz
= 32Ω
= 3.3V
SUPPLY VOLTAGE (V)
THD+N = 1%
THD+N = 10%
= 30mW
OUTPUT POWER
3.7
1.0
LSP
) are terminated
4.2
1.5
4.7
2.0
R
f = 1kHz
L
= 32Ω
5.2
A
2.5
=