Datasheet

MAX4295
Mono, 2W, Switch-Mode (Class D)
Audio Power Amplifier
_______________________________________________________________________________________ 7
-0.025
-0.020
-0.015
-0.010
-0.005
0
0.005
0.010
0.015
2.5 3.53.0 4.0 4.5 5.0 5.5
OSCILLATOR FREQUENCY DEVIATION
vs. SUPPLY VOLTAGE
MAX4295 toc26
SUPPLY VOLTAGE (V)
FREQUENCY DEVIATION (%)
1MHz
125kHz
250kHz
500kHz
400µs/div
STARTUP/SHUTDOWN
WAVEFORM
MAX4295 toc27
SHDN
V
OUT
2.5V/div
4V/div
R
L
= 4Ω
f
OSC
= 250kHz
f
IN
= 10kHz
C
SS
= 560pF
Typical Operating Characteristics (continued)
(V
CC
= PV
CC
= +3V, input amplifier gain = -1, SHDN = V
CC
, T
A
= +25°C, unless otherwise noted.)
Pin Description
PIN NAME FUNCTION
1, 12 GND Analog Ground
2, 15 PV
CC
H-Bridge Power Supply
3 OUT+ Positive H-Bridge Output
4, 13 PGND Power Ground
5V
CC
Analog Power Supply
6 VCM Audio Input Common-Mode Voltage. Do not connect. Minimize parasitic coupling to this pin.
7INAudio Input
8 AOUT Input Amplifier Output
9 SHDN Active-Low Shutdown Input. Connect to V
CC
for normal operation. Do not leave floating.
10 FS1 Frequency Select Input 1
11 FS2 Frequency Select Input 2
14 OUT- Negative H-Bridge Output
16 SS Soft-Start