參數(shù)資料
型號： MAX4411EVKIT
廠商： Maxim Integrated Products
文件頁數(shù)： 17/18頁
文件大?。?/td> 0K
描述： EVAL KIT FOR MAX4411
標準包裝： 1
MAX4411
80mW, Fixed-Gain, DirectDrive, Stereo
Headphone Amplifier with Shutdown
8
_______________________________________________________________________________________
Pin Description
PIN
BUMP
QFN
UCSP
NAME
FUNCTION
1
A4
C1P
Flying Capacitor Positive Terminal
2
B4
PGND
Power Ground. Connect to ground (0V).
3
C4
C1N
Flying Capacitor Negative Terminal
4, 6, 8, 12,
16, 20
—
N.C.
No Connection. Not internally connected.
5D4
PVSS
Charge-Pump Output
7D3
SVSS
Amplifier Negative Power Supply. Connect to PVSS.
9
D2
OUTL
Left-Channel Output
10
D1
SVDD
Amplifier Positive Power Supply. Connect to positive supply (1.8V to 3.6V).
11
C2
OUTR
Right-Channel Output
13
C1
INL
Left-Channel Audio Input
14
B1
SHDNR
Active-Low Right-Channel Shutdown. Connect to VDD for normal operation.
15
A1
INR
Right-Channel Audio Input
17
A2
SGND
Signal Ground. Connect to ground (0V).
18
B2
SHDNL
Active-Low Left-Channel Shutdown. Connect to VDD for normal operation.
19
A3
PVDD
Charge-Pump Power Supply. Powers charge-pump inverter, charge-pump logic, and
oscillator. Connect to positive supply (1.8V to 3.6V).
——
EP
Exposed Paddle. Leave unconnected. Do not connect to any voltage including
GND or VDD.
POWER-UP/DOWN WAVEFORM
MAX4411 toc41
OUT_
OUT_FFT
VDD
3V
20dB/div
10mV/div
0V
200ms/div
FFT: 25Hz/div
-100dB
RL = 32
Ω
VIN_ = GND
Typical Operating Characteristics (continued)
(C1 = C2 = 2.2F, THD+N measurement bandwidth = 22Hz to 22kHz, TA = +25°C, unless otherwise noted.)
EXITING SHUTDOWN
MAX4411 toc40
OUTR
SHDNR
2V/div
500mV/div
200
μs/div
fIN = 1kHz
RL = 32
Ω
SHDNL = GND
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