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參數(shù)資料
| 型號(hào)： | MAX4411 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 80mW, Fixed-Gain, DirectDrive, Stereo Headphone Amplifier with Shutdown |
| 中文描述： | 80mW、固定增益、DirectDrive、立體聲耳機(jī)放大器，帶有關(guān)斷 |
| 文件頁(yè)數(shù)： | 8/18頁(yè) |
| 文件大小： | 623K |
| 代理商： | MAX4411 |
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M
80mW, Fixed-Gain, DirectDrive, Stereo
Headphone Amplifier with Shutdown
8
_______________________________________________________________________________________
Pin Description
PIN
QFN
1
2
3
BUMP
UCSP
A4
B4
C4
NAME
FUNCTION
C1P
PGND
C1N
Flying Capacitor Positive Terminal
Power Ground. Connect to ground (0V).
Flying Capacitor Negative Terminal
4, 6, 8, 12,
16, 20
—
N.C.
No Connection. Not internally connected.
5
7
9
10
11
13
14
15
17
18
D4
D3
D2
D1
C2
C1
B1
A1
A2
B2
PV
SS
SV
SS
OUTL
SV
DD
OUTR
INL
SHDNR
INR
SGND
SHDNL
Charge-Pump Output
Amplifier Negative Power Supply. Connect to PV
SS
.
Left-Channel Output
Amplifier Positive Power Supply. Connect to positive supply (1.8V to 3.6V).
Right-Channel Output
Left-Channel Audio Input
Active-Low Right-Channel Shutdown. Connect to V
DD
for normal operation.
Right-Channel Audio Input
Signal Ground. Connect to ground (0V).
Active-Low Left-Channel Shutdown. Connect to V
DD
for normal operation.
Charge-Pump Power Supply. Powers charge-pump inverter, charge-pump logic, and
oscillator. Connect to positive supply (1.8V to 3.6V).
19
A3
PV
DD
—
—
EP
Exposed Paddle. Leave this connection floating.
Do not tie to either GND or V
DD
.
POWER-UP/DOWN WAVEFORM
MAX4411 toc41
OUT_
OUT_FFT
V
DD
3V
20dB/div
10mV/div
0V
200ms/div
FFT: 25Hz/div
R
L
= 32
V
IN_
= GND
-100dB
Typical Operating Characteristics (continued)
(
C1 = C2 = 2.2μF, THD+N measurement bandwidth = 22Hz to 22kHz, T
A
= +25
°
C, unless otherwise noted.
)
EXITING SHUTDOWN
MAX4411 toc40
OUTR
SHDNR
2V/div
500mV/div
200
μ
s/div
f
IN
= 1kHz
R
L
= 32
SHDNL = GND
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