Datasheet

MAX4298/MAX4299
Ultra-High PSRR Stereo Drivers +
Microphone Amp + 100mA Linear Regulator
4 _______________________________________________________________________________________
8.5
9.5
9.0
10.5
10.0
11.0
11.5
4.2 4.8 5.04.4 4.6 5.2 5.4 5.6
MAX4298
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX4298/99-01
V
CC
(V)
I
CC
(mA)
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
-0.5
1.0
0.5
0
1.5
2.0
2.5
0 1.0 2.0
POWER-UP/POWER-DOWN
MAX4298/9-02
TIME (s)
OUTPUT VOLTAGE (V)
OUT
SPEAKER
R
L
= 32Ω
-2
0
-1
2
1
3
4
01.00.5 1.5 2.0
MUTE PERFORMANCE
MAX4298/9-03
TIME (s)
OUTPUT VOLTAGE (V)
OUT
SPEAKER
R
L
= 32Ω
C
AC
= 220µF
-1
1
0
3
2
5
4
6
MAX4298/99-04
TIME (s)
VOLTAGE (V)
0 0.5 1.0 1.5 2.0
POWER-DOWN/POWER-UP with SCHOTTKY
DIODE AND RESERVOIR CAPACITOR
V
CC
= 0
SV
CC
V
OUT
V
CC
= 5V
R
L
= 32Ω
C
AC
= 22OµF
0.0001
100 100k10k1k
DRIVER OUT
THD+N vs. FREQUENCY
1
0.01
0.001
0.1
MAX4298/99-05
INPUT FREQUENCY (Hz)
THD+N (%)
BW = 80kHz
BW = 22kHz
R
L
= 10kΩ
A
V
= -1
V
OUT
= 1.5V
RMS
0.0001
100 100k10k1k
DRIVER OUT
THD+N vs. FREQUENCY
1
0.01
0.001
0.1
MAX4298/99-06
INPUT FREQUENCY (Hz)
THD+N (%)
R
L
= 32Ω
A
V
= -1
V
OUT
= 1.2V
RMS
BW = 80kHz
BW = 22kHz
0.0001
100 100k10k1k
DRIVER OUT
THD+N vs. FREQUENCY
1
0.01
0.001
0.1
MAX4298/99-07
INPUT FREQUENCY (Hz)
THD+N (%)
R
L
= 16Ω
A
V
= -1
V
OUT
= 1V
RMS
BW = 80kHz
BW = 22kHz
10
1
0.1
0.01
0.001
0.0001
011.50.5 2
DRIVER OUT
THD+N vs. AMPLITUDE
MAX4298/99toc08
OUTPUT VOLTAGE (V
RMS
)
THD+N (%)
A
V
= -1
R
L
= 10kΩ
f
IN
= 1kHz
BW = 22kHz
10
1
0.1
0.01
0.001
0.0001
011.50.5 2
DRIVER OUT
THD+N vs. AMPLITUDE
MAX4298/99toc09
OUTPUT VOLTAGE (V
RMS
)
THD+N (%)
R
L
= 32Ω
A
V
= -1
f
IN
= 1kHz
BW = 22kHz
Typical Operating Characteristics
(V
CC
= SV
CC
= +5V, typical operating circuit, T
A
= +25°C, unless otherwise noted.)