Datasheet

MAX4298/MAX4299
Ultra-High PSRR Stereo Drivers +
Microphone Amp + 100mA Linear Regulator
6 _______________________________________________________________________________________
DRIVER OUT
OPEN-LOOP FREQUENCY RESPONSE
INPUT FREQUENCY (kHz)
0.01 10 100 10000.1 1 10,000
GAIN (dB)
90
-10
0
10
20
30
40
50
80
70
60
0
PHASE (deg)
200
20
40
60
80
100
120
180
160
140
GAIN
PHASE
10kΩ || 22nF
MAX4298/99 toc19
0.01 10.1 10 100
MICOUT ALL HOSTILE CROSSTLAK
(INPUT REFERRED)
MAX4298/99 toc20
INPUT FREQUENCY (kHz)
ALL HOSTILE CROSSTALK (dB)
-20
-120
-100
-60
-40
-80
A
V
= -100
MICOUT OPEN LOOP
FREQUENCY RESPONSE
MAX4298/99 toc21
INPUT FREQUENCY (kHz)
GAIN (dB)
90
-10
10
30
50
70
0.01 10 100 10000.1 1
80
60
40
20
0
PHASE
GAIN
10kΩ || 15pF
10,000
0
PHASE (deg)
200
20
40
60
80
100
120
180
160
140
MICOUT OPEN LOOP
FREQUENCY RESPONSE
MAX4298/99 toc22
INPUT FREQUENCY (kHz)
GAIN (dB)
90
-10
10
30
50
70
0.01 10 100 10000.1 1 10,000
80
60
40
20
0
10kΩ || 150pF
200
180
160
140
120
100
80
60
40
20
0
PHASE
GAIN
0 0.5 1.0 1.5
MICOUT
THD+N vs. AMPLITUDE
MAX4298/99 toc23
AMPLITUDE (V
RMS
)
THD+N (%)
10
0.0001
0.001
0.01
0.1
1
2.0
R
L
= 10kΩ
A
V
= -1
f
IN
= 1kHz
BW = 22kHz
3.0
3.1
3.3
3.2
3.4
3.5
04020 60 80 100
REGOUT OUTPUT VOLTAGE
vs. LOAD CURRENT
MAX4298/99 toc24
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
200µs/div
REGOUT TRANSIENT RESPONSE
100mA
V
OUT
30mV/div
0
MAX4298/99 toc25
I
L
200µs/div
REGOUT TRANSIENT RESPONSE
MAX4298/99 toc26
100mA
V
OUT
30mV/div
10mA
I
L
Typical Operating Characteristics (continued)
(V
CC
= SV
CC
= +5V, typical operating circuit, T
A
= +25°C, unless otherwise noted.)