MAX9718(2003) Просмотр технического описания (PDF) - Maxim Integrated
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MAX9718 Datasheet PDF : 23 Pages
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Low-Cost, Mono/Stereo,
1.4W Differential Audio Power Amplifiers
Typical Operating Characteristics (continued)
(VCC = 5V, CBIAS = 0.1µF, THD+N measurement bandwidth = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. TEMPERATURE
6
5
VCC = 5V
4
3
VCC = 3V
2
1
0
-40 -15
10
35
60
85
TEMPERATURE (°C)
SHUTDOWN CURRENT
vs. TEMPERATURE
0.03
0.02
VCC = 5V
0.01
0
VCC = 3V
-0.01
-0.02
-0.03
-40 -15
10
35
60
85
TEMPERATURE (°C)
TURN-ON TIME
vs. DC BIAS BYPASS CAPACITOR
80
TO -3dB OF FINAL VALUE
70
VCC = 5V
60
50
40
VCC = 3V
30
20
10
0
0
0.20 0.40 0.60 0.80 1.00
CBIAS (µF)
MAX9718
TDFN/
µMAX
UCSP
1
C2
—
—
2
C1
3
B2
4
A1
5
A2
6
A3
7
B3
8
—
9
B1
10
C3
—
—
—
—
—
—
—
—
—
—
PIN
MAX9719
TQFN UCSP TSSOP
—
—
—
9
B3
11
—
—
—
—
—
—
—
5
—
1, 6, 11
13
8, 14
—
2
3
4
7
10
—
B2
—
A2,
C2, C4
—
A4, D3
—
C1
B1
A1
A3
B4
—
7
—
3, 8,13
15
16, 10
—
4
5
6
9
12
Pin Description
NAME
FUNCTION
SHDN
SHDN
IN-
SHDM
IN+
BIAS
OUT-
Shutdown Input. The polarity of SHDN is dependent on the state
of SHDM.
Shutdown Input. Active-low shutdown input.
Inverting Input
Shutdown-Mode Polarity Input. SHDM controls the polarity of
SHDN. Connect SHDM high for an active-high SHDN input.
Connect SHDM low for an active-low SHDN input (see Table 1).
Noninverting Input
DC Bias Bypass
Bridge Amplifier Negative Output
GND Ground
N.C.
VCC
OUT+
INR+
INL-
INL+
OUTL+
OUTL-
No Connection. Not internally connected.
Power Supply
Bridge Amplifier Positive Output
Right-Channel Noninverting Input
Left-Channel Inverting Input
Left-Channel Noninverting Input
Left-Channel Bridge Amplifier Positive Output
Left-Channel Bridge Amplifier Negative Output
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