MAX9776ETJ+ Maxim Integrated Products, MAX9776ETJ+ Datasheet - Page 10

• 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
10
(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
-100
-110
-120
-100
-120
-140
-10
-20
-30
-40
-50
-60
-70
-80
-90
-20
-40
-60
-80
20
0
0
______________________________________________________________________________________
= PV
0.1
0
V
R
INPUTS AC GROUNDED
f
R
GAIN = +12dB
CROSSTALK vs. INPUT AMPLITUDE
IN
DD
L
L
WIDEBAND OUTPUT SPECTRUM
= 8Ω
= 1kHz
= 8Ω
DD
= 5V
0.1
FIXED-FREQUENCY MODE
= CPV
INPUT AMPLITUDE (V
1
0.2
FREQUENCY (MHz)
LEFT TO RIGHT
DD
RIGHT TO LEFT
0.3
10
= 3.3V, GND = PGND = CPGND = 0V, SHDN = V
0.4
RMS
100
)
0.5
1000
0.6
-100
-120
-140
-100
-120
-140
-20
-40
-60
-80
Typical Operating Characteristics (continued)
20
-20
-40
-60
-80
20
0
0
0.1
0
V
R
INPUTS AC GROUNDED
SSM MODE
R
V
f
UNWEIGHTED
DD
L
IN
L
DD
WIDEBAND OUTPUT SPECTRUM
= 8Ω
= 8Ω
= 1kHz
= 5V
IN-BAND OUTPUT SPECTRUM
SPREAD-SPECTRUM MODE
= 3.3V
1
5k
FREQUENCY (MHz)
FREQUENCY (Hz)
10
10k
DD
100
, I
15k
2
C default gain settings (INA gain = +20dB, INB gain =
1000
20k
-100
-120
-140
-20
-40
-60
-80
20
25
20
15
10
0
2.7
0
SP MODE
INPUTS AC GROUNDED
OUTPUTS UNLOADED
FFM MODE
R
V
f
UNWEIGHTED
IN
L
DD
= 8Ω
= 1kHz
IN-BAND OUTPUT SPECTRUM
= 3.3V
MAX9775 SUPPLY CURRENT
3.2
5k
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
FREQUENCY (Hz)
3.7
LSP
10k
) are terminated
4.2
4.7
15k
5.2
A
=
20k