MAX4409ETP+ Maxim Integrated Products, MAX4409ETP+ Datasheet - Page 6

• Manufacturer Part Number: MAX4409ETP+
• Description: IC AMP AUDIO .08W STER AB 20TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX4409ETP+

• Output Type: Headphones, 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 80mW x 2 @ 16 Ohm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Features: Depop, Short-Circuit and Thermal Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 20-TQFN Exposed Pad
• Product: General Purpose Audio Amplifiers
• Output Power: 80 mW
• Common Mode Rejection Ratio (min): 96 dB
• Thd Plus Noise: 0.002 %
• Operating Supply Voltage: 1.8 V to 3.6 V
• Supply Current: 5 mA
• Maximum Power Dissipation: 2051 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Input Bias Current (max): 0 nA
• Input Offset Voltage: 0.5 mV
• Input Signal Type: Differential
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.8 V
• Amplifier Class: AB
• No. Of Channels: 2
• Supply Voltage Range: 1.8V To 3.6V
• Load Impedance: 16ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: TQFN
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

80mW, DirectDrive, Stereo Headphone
Amplifier with Common-Mode Sense
(
6
C1 = C2 = 2.2µF, R
-100
140
120
100
_______________________________________________________________________________________
250
200
150
100
-10
-20
-40
-50
-60
-70
-80
-90
-30
80
60
40
20
50
0
0
0
1.8
10
10
OUTPUT POWER vs. SUPPLY VOLTAGE
OUTPUT POWER vs. LOAD RESISTANCE
V
f
R
THD+N = 1%
IN PHASE
COMMON-MODE REJECTION RATIO
IN
INPUTS
IN
L
= 1kHz
= 32Ω
= 500mV
2.1
100
100
OUT OF PHASE
LOAD RESISTANCE (Ω)
SUPPLY VOLTAGE (V)
INPUTS 180°
P-P
vs. FREQUENCY
2.4
FREQUENCY (Hz)
IN
OUT OF PHASE
= R
INPUTS 180°
2.7
1k
1k
F
IN PHASE
= R1 = R2 = 10kΩ, THD+N measurement bandwidth = 22Hz to 22kHz, T
INPUTS
3.0
THD+N = 10%
10k
10k
f
V
IN
3.3
DD
= 1kHz
= 3V
100k
100k
3.6
Typical Operating Characteristics (continued)
200
180
160
140
120
100
180
160
140
120
100
80
60
40
20
80
60
40
20
45
40
35
30
25
20
15
10
0
0
5
0
1.8
1.8
10
OUTPUT POWER vs. LOAD RESISTANCE
OUTPUT POWER vs. SUPPLY VOLTAGE
OUTPUT POWER vs. SUPPLY VOLTAGE
f
R
THD+N = 1%
IN
f
R
THD+N = 10%
IN
L
L
= 1kHz
= 16Ω
= 1kHz
= 32Ω
INPUTS 180°
OUT OF PHASE
2.1
2.1
100
INPUTS IN
PHASE
LOAD RESISTANCE (Ω)
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
2.4
2.4
OUT OF PHASE
INPUTS 180°
OUT OF PHASE
INPUTS 180°
2.7
2.7
1k
3.0
3.0
IN PHASE
INPUTS
IN PHASE
THD+N = 1%
INPUTS
10k
V
f
DD
IN
3.3
3.3
= 1kHz
= 1.8V
100k
3.6
3.6
300
250
200
150
100
160
140
120
100
50
80
60
40
20
70
60
50
40
30
20
10
A
0
0
0
1.8
10
= +25°C, unless otherwise noted.
10
OUTPUT POWER vs. LOAD RESISTANCE
OUTPUT POWER vs. LOAD RESISTANCE
OUTPUT POWER vs. SUPPLY VOLTAGE
f
R
THD+N = 10%
IN PHASE
IN
INPUTS
L
= 1kHz
= 16Ω
2.1
INPUTS 180°
OUT OF PHASE
100
100
LOAD RESISTANCE (Ω)
LOAD RESISTANCE (Ω)
SUPPLY VOLTAGE (V)
INPUTS IN
PHASE
OUT OF PHASE
2.4
INPUTS 180°
2.7
1k
1k
OUT OF PHASE
INPUTS 180°
3.0
IN PHASE
INPUTS
THD+N = 1%
THD+N = 10%
10k
10k
f
V
V
IN
f
DD
DD
IN
3.3
= 1kHz
= 1kHz
= 1.8V
= 3V
)
100k
100k
3.6