MAX4409ETP+ Maxim Integrated Products, MAX4409ETP+ Datasheet - Page 5

• 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

(
C1 = C2 = 2.2µF, R
0.001
0.001
0.01
0.01
100
100
-30
-40
-50
-60
-70
-80
-90
0.1
0.1
-10
-20
10
10
1
1
0
10
0
0
TOTAL HARMONIC DISTORTION PLUS
TOTAL HARMONIC DISTORTION PLUS
V
f = 10kHz
R
V
f = 10kHz
R
POWER-SUPPLY REJECTION RATIO
V
V
R
DD
L
DD
L
DD
IN
L
OUTPUTS IN
PHASE
= 32Ω
= 16Ω
= 16Ω
= 1.8V
= 1.8V
= 200mV
10
= 1.8V
NOISE vs. OUTPUT POWER
OUTPUTS IN
PHASE
NOISE vs. OUTPUT POWER
100
10
OUTPUT POWER (W)
OUTPUT POWER (W)
vs. FREQUENCY
P-P
20
FREQUENCY (Hz)
IN
_______________________________________________________________________________________
= R
20
30
1k
F
80mW, DirectDrive, Stereo Headphone
= R1 = R2 = 10kΩ, THD+N measurement bandwidth = 22Hz to 22kHz, T
40
30
10k
OUTPUTS
OUT OF
PHASE
OUTPUTS
OUT OF
PHASE
Amplifier with Common-Mode Sense
50
100k
60
40
0.001
0.01
100
-90
-10
-20
-90
-10
-20
-30
-40
-50
-60
-70
-80
Typical Operating Characteristics (continued)
0.1
-30
-40
-50
-60
-70
-80
10
0
1
0
10
10
0
TOTAL HARMONIC DISTORTION PLUS
V
f = 20Hz
R
V
V
R
POWER-SUPPLY REJECTION RATIO
POWER-SUPPLY REJECTION RATIO
V
V
R
DD
L
DD
IN
L
DD
IN
L
= 32Ω
= 16Ω
= 32Ω
= 1.8V
= 200mV
= 200mV
= 3V
= 1.8V
OUTPUTS IN
PHASE
NOISE vs. OUTPUT POWER
100
100
10
OUTPUT POWER (W)
P-P
vs. FREQUENCY
vs. FREQUENCY
P-P
FREQUENCY (Hz)
FREQUENCY (Hz)
20
1k
1k
10k
OUTPUTS
OUT OF
PHASE
10k
30
100k
100k
40
0.001
0.01
100
0.1
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
10
-80
1
0
0
A
10
0
10
= +25°C, unless otherwise noted.
TOTAL HARMONIC DISTORTION PLUS
V
f = 1kHz
R
V
V
R
V
DD
L
POWER-SUPPLY REJECTION RATIO
DD
IN
L
IN
= 32Ω
OUTPUTS IN
PHASE
= 16Ω
= 1.8V
= 200mV
= 200mV
= 3V
CROSSTALK vs. FREQUENCY
NOISE vs. OUTPUT POWER
100
10
100
LEFT TO RIGHT
OUTPUT POWER (W)
P-P
P-P
vs. FREQUENCY
FREQUENCY (Hz)
FREQUENCY (Hz)
RIGHT TO LEFT
20
1k
1k
30
10k
OUTPUTS
OUT OF
PHASE
10k
100k
100k
)
40
5