MAX9725AETC+T Maxim Integrated Products, MAX9725AETC+T Datasheet - Page 5

• Manufacturer Part Number: MAX9725AETC+T
• Description: IC AMP AUDIO .025W STER 12TQFN
• Manufacturer: Maxim Integrated Products
• Series: DirectDrive™r
• Type: Class ABr

Specifications of MAX9725AETC+T

• Output Type: Headphones, 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 25mW x 2 @ 16 Ohm
• Voltage - Supply: 900 mV ~ 1.8 V
• Features: Depop, Short-Circuit Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 12-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(V
to 22kHz, T
0.001
DD
0.001
0.01
1V, Low-Power, DirectDrive, Stereo Headphone
100
-100
0.01
0.1
10
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.1
1
1
0
= 1.5V, V
10
10
0
TOTAL HARMONIC DISTORTION PLUS
TOTAL HARMONIC DISTORTION PLUS
V
R
A
V
R
A
V
R
DD
L
V
POWER-SUPPLY REJECTION RATIO
DD
L
V
DD
L
= 16Ω
= 32Ω
= 32Ω
= -2V/V
= -2V/V
= 1V
A
= 1V
= 1V
P
P
NOISE vs. OUTPUT POWER
OUT
= +25°C, unless otherwise noted.) (See the Functional Diagrams. )
OUT
100
NOISE vs. FREQUENCY
PGND
100
= 0.7mW
= 4mW
OUTPUT POWER (mW)
vs. FREQUENCY
FREQUENCY (Hz)
FREQUENCY (Hz)
5
= V
_______________________________________________________________________________________
1k
1k
SGND
f
f
IN
IN
= 20Hz
= 1kHz
10
= 0V, V
f
IN
10k
10k
= 10kHz
SHDN
100k
100k
15
= 1.5V, V
0.001
0.001
0.01
-100
-120
0.01
100
100
0.1
-20
-40
-60
-80
10
0.1
10
Typical Operating Characteristics (continued)
1
1
0
10
0
0
SS
V
P
R
TOTAL HARMONIC DISTORTION PLUS
V
R
A
TOTAL HARMONIC DISTORTION PLUS
V
R
A
DD
OUT
L
DD
L
V
DD
L
V
= 32Ω
= 16Ω
= -2V/V
= 32Ω
= -2V/V
= V
= 1.5V
= 1.5V
= 1V
CROSSTALK vs. FREQUENCY
= 5mW
NOISE vs. OUTPUT POWER
NOISE vs. OUTPUT POWER
100
PVSS,
10
OUTPUT POWER (mW)
OUTPUT POWER (mW)
FREQUENCY (Hz)
5
Amplifier with Shutdown
C1 = C2 = 1µF, C
20
1k
f
f
IN
IN
f
f
IN
IN
= 20Hz
= 1kHz
= 20Hz
= 1kHz
LEFT TO RIGHT
RIGHT TO LEFT
10
f
IN
f
10k
IN
30
= 10kHz
= 10kHz
IN
100k
40
15
= 1µF, THD+N measurement bandwidth = 22Hz
0.001
0.01
-100
-110
100
0.1
-10
-20
-30
-40
-50
-60
-70
-80
-90
10
80
70
60
50
40
30
20
10
1
0
0.9
10
0
OUTPUT POWER vs. SUPPLY VOLTAGE
V
R
TOTAL HARMONIC DISTORTION PLUS
V
R
A
f
R
BOTH INPUTS
DRIVEN IN-PHASE
POWER-SUPPLY REJECTION RATIO
IN
DD
L
DD
L
V
L
= 32Ω
= 32Ω
= -2V/V
= 1kHz
= 16Ω
= 1.5V
= 1.5V
NOISE vs. OUTPUT POWER
100
10
OUTPUT POWER (mW)
SUPPLY VOLTAGE (V)
vs. FREQUENCY
1.1
FREQUENCY (Hz)
f
f
1k
20
IN
IN
= 20Hz
= 1kHz
THD+N = 10%
THD+N = 1%
f
1.3
IN
= 10kHz
10k
30
100k
40
1.5
5