MAX9705AETB+T Maxim Integrated Products, MAX9705AETB+T Datasheet - Page 6

• Manufacturer Part Number: MAX9705AETB+T
• Description: IC AMP AUDIO PWR 2.3W D 10TDFN
• Manufacturer: Maxim Integrated Products
• Type: Class Dr

Specifications of MAX9705AETB+T

• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 2.3W x 1 @ 4 Ohm
• Voltage - Supply: 2.5 V ~ 5.5 V
• Features: Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 10-TDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.3W, Ultra-Low-EMI, Filterless,
Class D Audio Amplifier
(V
load condition apply to the MAX9705_ETB+T only.)
6
DD
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
_______________________________________________________________________________________
0
= 3.3V, SYNC = V
2.5
3.0
THD+N = 10%
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
OUTPUT POWER
3.5
-100
-100
-120
-140
-10
-20
-30
-40
-50
-60
-70
-80
-90
-20
-40
-60
-80
20
0
0
4.0
DD
10
0
SPREAD-SPECTRUM-MODE OUTPUT
R
V
f
BW = 22Hz to 22kHz
V
V
R
IN
L
DD
DD
IN
L
(SSM), differential input, T
THD+N = 1%
= 8Ω
= 1kHz
= 8Ω
4.5
= 200mV
= 5.0V
POWER-SUPPLY REJECTION
= 3.3V
SPECTRUM vs. FREQUENCY
f
R
RATIO vs. FREQUENCY
100
IN
L
5
= 1kHz
= 8Ω
5.0
P-P
FREQUENCY (kHz)
FREQUENCY (Hz)
5.5
1k
10
10k
15
Typical Operating Characteristics (continued)
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
2.5
A
= +25°C, unless otherwise noted. Typical Operating Characteristics for 4Ω
100k
20
3.0
THD+N = 10%
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
OUTPUT POWER
3.5
4.0
4.5
THD+N = 1%
f
R
IN
L
5.0
= 1kHz
= 4Ω
-100
-120
-140
-100
-120
-140
-20
-40
-60
-80
-20
-40
-60
-80
20
20
0
0
0
0
5.5
SPREAD-SPECTRUM-MODE OUTPUT
R
V
f
A-WEIGHTED
R
V
f
BW = 22Hz to 22kHz
FIXED-FREQUENCY-MODE OUTPUT
IN
IN
L
DD
L
DD
= 8Ω
= 1kHz
= 8Ω
= 1kHz
= 5.0V
SPECTRUM vs. FREQUENCY
= 5.0V
SPECTRUM vs. FREQUENCY
5
5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
FREQUENCY (kHz)
FREQUENCY (kHz)
0
1
f
Z
SERIES WITH R
THD+N = 1%
IN
10
LOAD
10
= 1kHz
= 33µH IN
vs. LOAD RESISTANCE
LOAD RESISTANCE (Ω)
OUTPUT POWER
15
15
10
L
3.3V
5.0V
20
20
100
1000