Datasheet

MAX9715
2.8W, Low-EMI, Stereo, Filterless Class D
Audio Amplifier
6 _______________________________________________________________________________________
Pin Description
PIN NAME FUNCTION
1, 12 PGND Power Ground
2 OUTL+ Left-Channel Positive Speaker Output
3 OUTL- Left-Channel Negative Speaker Output
4, 9 PV
DD
Positive Speaker Power-Supply Input. Power-supply input for speaker amplifier output stages. Connect
to V
DD
and bypass with 0.1μF to PGND.
5 N.C. No connection. Not internally connected.
6 GAIN Gain Select. Sets the internal amplifier gain. See the Gain Selection section.
7 GND Ground
8 SHDN Shutdown Control. Drive SHDN low to shut down the MAX9715.
10 OUTR- Right-Channel Negative Speaker Output
11 OUTR+ Right-Channel Positive Speaker Output
13 BIAS Bias Voltage Output. V
BIAS
= 1.8V, bypass BIAS to GND with a 1μF ceramic capacitor.
14 V
DD
Positive Power-Supply Input. Bypass to GND with a 0.1μF ceramic capacitor.
15 INR Right-Channel Input
16 INL Left-Channel Input
— EP Exposed Paddle. Connect EP to an electrically isolated copper pad or GND.
Typical Operating Characteristics (continued)
(V
DD
= 5.0V, C
VDD
= 3 x 0.1μF, C
BIAS
= 1μF, C
INL
= C
INR
= 1μF, A
V
= +10.5dB, T
A
= +25°C, unless otherwise noted.) (See the
Typical Operating Circuit/Functional Diagram )
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
MAX9715 toc16
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT (μA)
5.35.04.8
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0
4.5 5.5
POWER-ON/OFF WAVEFORM
MAX9715 toc17
10ms/div
SHDN
5V/div
I
OUT
200mA/div