MAX9715(2005) Ver la hoja de datos (PDF) - Maxim Integrated
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Fabricante
MAX9715 Datasheet PDF : 14 Pages
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2.8W, Low-EMI, Stereo, Filterless Class D
Audio Amplifier
Typical Operating Characteristics (continued)
(VDD = 5.0V, CVDD = 3 x 0.1µF, CBIAS = 1µF, CINL = CINR = 1µF, AV = +10.5dB, TA = +25°C, unless otherwise noted.) (See the
Typical Operating Circuit/Functional Diagram)
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
4.5
4.8
5.0
5.3
5.5
SUPPLY VOLTAGE (V)
POWER-ON/OFF WAVEFORM
MAX9715 toc17
SHDN
5V/div
10ms/div
IOUT
200mA/div
PIN
TQFN TSSOP
1, 12
4, 13
2
5
3
6
4, 9
7, 10
5
—
6
8
7
1, 14
8
9
10
11
11
12
13
15
14
16
15
2
16
3
EP
—
Pin Description
NAME
FUNCTION
PGND
OUTL+
OUTL-
PVDD
N.C.
GAIN
GND
SHDN
OUTR-
OUTR+
BIAS
VDD
INR
INL
EP
Power Ground
Left-Channel Positive Speaker Output
Left-Channel Negative Speaker Output
Positive Speaker Power-Supply Input. Power-supply input for speaker amplifier output stages.
Connect to VDD and bypass with 0.1µF to PGND.
No connection. Not internally connected.
Gain Select. Sets the internal amplifier gain. See the Gain Selection section.
Ground
Shutdown Control. Drive SHDN low to shut down the MAX9715.
Right-Channel Negative Speaker Output
Right-Channel Positive Speaker Output
Bias Voltage Output. VBIAS = 1.8V, bypass BIAS to GND with a 1µF ceramic capacitor.
Positive Power-Supply Input. Bypass to GND with a 0.1µF ceramic capacitor.
Right-Channel Input
Left-Channel Input
Exposed Paddle. Connect EP to an electrically isolated copper pad or GND.
6 _______________________________________________________________________________________
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