max9726aetpt Maxim Integrated Products, Inc., max9726aetpt Datasheet - Page 6
max9726aetpt
Manufacturer Part Number
max9726aetpt
Description
Max9726 Directdrive, Headphone Amplifier With Bassmax, I?c, Volume And Gain Control
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.MAX9726AETPT.pdf
(24 pages)
DirectDrive, Headphone Amplifier with
BassMax, I
(V
ume (overall gain = 0dB), BassMax disabled. Load connected between OUT_ and PGND where specified. Outputs in phase, both
channels loaded. T
6
DD
0.001
0.01
_______________________________________________________________________________________
0.1
10
= SHDN = 5V, PGND = SGND = 0V, C1 = C2 = 1µF, C
1
10
OUTPUT POWER = 80mW
V
R
CC
L
TOTAL HARMONIC DISTORTION
= 32Ω
PLUS NOISE vs. FREQUENCY
= 5V
100
180
160
140
120
100
120
100
80
60
40
20
80
60
40
20
0
0
FREQUENCY (Hz)
A
2.5
10
= +25°C, unless otherwise noted.) (See the Functional Diagram/Typical Operating Circuit )
OUTPUT POWER = 40mW
1k
THD+N = 10%
3.0
THD+N = 1%
vs. LOAD RESISTANCE
vs. SUPPLY VOLTAGE
LOAD RESISTANCE (Ω)
SUPPLY VOLTAGE (V)
2
OUTPUT POWER
3.5
OUTPUT POWER
10k
C, Volume and Gain Control
THD+N = 10%
THD+N = 1%
100
4.0
V
100k
DD
= 3.3V, f
4.5
R
f
IN
L
IN
5.0
= 1kHz
= 16Ω
= 1kHz
Typical Operating Characteristics (continued)
600
500
400
300
200
100
0
1000
0
5.5
V
f
P
IN
DD
OUT
= 1kHz
R
= 3.3V
= P
L
40
= 16Ω
TOTAL OUTPUT POWER (mW)
PREG
OUTR
POWER DISSIPATION
vs. OUTPUT POWER
+ P
80
OUTL
= C
NREG
120
= 1µF, BM_ = 0V, R
R
L
160
= 32Ω
160
140
120
100
210
180
150
120
80
60
40
20
90
60
30
0
0
2.5
10
200
THD+N = 1%
3.0
vs. LOAD RESISTANCE
vs. SUPPLY VOLTAGE
THD+N = 10%
1000
LOAD RESISTANCE (Ω)
SUPPLY VOLTAGE (V)
900
800
700
600
500
400
300
200
100
OUTPUT POWER
OUTPUT POWER
3.5
THD+N = 10%
0
IN
0
= 10kΩ, R
THD+N = 1%
V
f
P
100
4.0
IN
DD
OUT
= 1kHz
V
= 5V
40
= P
DD
R
TOTAL OUTPUT POWER (mW)
L
4.5
POWER DISSIPATION
OUTR
= 5V, f
vs. OUTPUT POWER
= 16Ω
80
F
+ P
R
f
IN
IN
= 10kΩ, maximum vol-
L
5.0
= 32Ω
= 1kHz
OUTL
= 1kHz
120
1000
5.5
160
R
L
200
= 32Ω
240