MAX9756ETX+T Maxim Integrated Products, MAX9756ETX+T Datasheet - Page 10

• Manufacturer Part Number: MAX9756ETX+T
• Description: IC AMP AUDIO PWR 2.3W AB 36TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9756ETX+T

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.3W x 2 @ 3 Ohm; 130mW x 2 @ 16 Ohm
• Voltage - Supply: 4.5 V ~ 5.5 V
• Features: Depop, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 36-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.3W Stereo Speaker Amplifiers and DirectDrive
Headphone Amplifiers with Automatic Level Control
(V
1µF, C
22kHz, T
10
DD
-100
-110
-10
-20
-30
-40
-50
-60
-70
-80
-90
______________________________________________________________________________________
= PV
0
0.01
PVSS
A
R
P
L
OUT(SPK)
DD
= +25°C, unless otherwise noted.)
= 4Ω
= 1µF, C1 = C2 = 1µF, PREF = unconnected, GAIN1 = 1, GAIN2 = GAIN3 = VOL = 0V, measurement BW = 22Hz to
CROSSTALK vs. FREQUENCY
= HPV
I
OUT
0.1
= 1W
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
= 10mA
FREQUENCY (Hz)
0
I
OUT
DD
10
(LDO)
= 50mA
V
POWER-SUPPLY REJECTION RATIO
RIPPLE
= CPV
1
I
OUT
= 100mV
100
vs. FREQUENCY (LDO)
DD
= 90mA
10
FREQUENCY (Hz)
= IN = +5.0V, GND = PGND = CPGND = 0V, SHDN = V
P-P
1k
100
10k
Typical Operating Characteristics (continued)
-1
-2
-3
-4
-5
5
4
3
2
1
0
-40
100k
LDO OUTPUT VOLTAGE ACCURACY
-15
vs. TEMPERATURE
TEMPERATURE (°C)
10
35
60
85
DD
-100
-200
-300
LDO OUTPUT NOISE
300
200
100
, REGEN = DR = SET = GND, C
0
0
200µs/div
25
DROPOUT VOLTAGE
vs. LOAD CURRENT
LOAD CURRENT (mA)
50
MAX9756 toc40
75
100
LDO_OUT
1mV/div
125
BIAS
150
=