参数资料
型号: MAX9755ETI+T
厂商: Maxim Integrated Products
文件页数: 3/30页
文件大小: 0K
描述: IC AMP AUDIO PWR 2.6W AB 28TQFN
标准包装: 2,500
系列: DirectDrive®
类型: AB 类
输出类型: 2-通道(立体声)带立体声耳机
在某负载时最大输出功率 x 通道数量: 2.6W x 2 @ 3 欧姆; 110mW x 2 @ 16 欧姆
电源电压: 4.5 V ~ 5.5 V
特点: 消除爆音,短路保护和热保护,关闭
安装类型: 表面贴装
供应商设备封装: 28-TQFN-EP(5x5)
封装/外壳: 28-WFQFN 裸露焊盘
包装: 带卷 (TR)
MAX9750/MAX9751/MAX9755
2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
______________________________________________________________________________________
11
Pin Description
PIN
MAX9750
MAX9751
MAX9755
NAME
FUNCTION
1
2
INL
Left-Channel Audio Input
2
BEEP
Audible Alert Beep Input
3, 19
PGND
Power Ground. Connect PGND to GND at a single point on the PCB near
the device.
4
OUTL+
Left-Channel Positive Speaker Output
5
OUTL-
Left-Channel Negative Speaker Output
6, 16
PVDD
Speaker Amplifier Power Supply
7
CPVDD
Charge-Pump Power Supply
8
C1P
Charge-Pump Flying-Capacitor Positive Terminal
9
CPGND
Charge-Pump Ground. Connect CPGND to PGND.
10
C1N
Charge-Pump Flying-Capacitor Negative Terminal
11
CPVSS
Charge-Pump Output. Connect to VSS.
12
VSS
Headphone Amplifier Negative Power Supply
13
HPOUTR
Right-Channel Headphone Output
14
HPOUTL
Left-Channel Headphone Output
15
HPVDD
Headphone Positive Power Supply
17
OUTR-
Right-Channel Negative Speaker Output
18
OUTR+
Right-Channel Positive Speaker Output
20
HPS
Headphone Sense Input
21
BIAS
Common-Mode Bias Voltage. Bypass with a 1F capacitor to GND.
22
SHDN
Shutdown. Drive SHDN low to disable the device. Connect SHDN to VDD
for normal operation.
23
GAIN2
Gain Control Input 2
24
GAIN1
Gain Control Input 1
25
VDD
Power Supply
26
23, 26
GND
Ground. Connect GND to PGND at a single point on the PCB near the
device.
27
28
INR
Right-Channel Audio Input
28
VOL
Analog Volume Control Input
1
INL1
Left-Channel Audio Input 1
2
INL2
Left-Channel Audio Input 2
23
IN1/2
Input Select
24
GAIN
Gain Select
27
INR1
Right-Channel Audio Input 1
28
INR2
Right-Channel Audio Input 2
1, 27
N.C.
No Connection. Not internally connected.
1, 27
N.C.
No Connection. Not internally connected.
EP
Exposed Paddle. Connect to GND.
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