参数资料
型号: MAX9767ETJ+T
厂商: Maxim Integrated Products
文件页数: 7/33页
文件大小: 0K
描述: IC AMP AUDIO .75W STER AB 32TQFN
标准包装: 2,500
类型: AB 类
输出类型: 2 通道(立体声)
在某负载时最大输出功率 x 通道数量: 750mW x 2 @ 4 欧姆
电源电压: 2.7 V ~ 5.5 V
特点: 消除爆音,麦克风,静音,短路保护和热保护,关机
安装类型: 表面贴装
供应商设备封装: 32-TQFN-EP(5x5)
封装/外壳: 32-WFQFN 裸露焊盘
包装: 带卷 (TR)
MAX9765/MAX9766/MAX9767
750mW Audio Amplifiers with Headphone Amp,
Microphone Preamp, and Input Mux
______________________________________________________________________________________
15
Pin Description
PIN
MAX9765
MAX9766
MAX9767
NAME
FUNCTION
11
1
SHDN
Active-Low Shutdown. Connect SHDN to VDD for normal operation.
2, 7, 18
2, 7, 8,
18, 23,
24, 27, 32
N.C.
No Connection. Not internally connected.
3
6
OUTL+
Left-Channel Bridged Amplifier Positive Output. OUTL+ also serves as the
left-channel headphone amplifier output.
4, 21
PVDD
Output Amplifier Power Supply. Connect PVDD to VDD.
5, 20
PGND
Power Ground. Connect PGND to GND.
6
3
OUTL-
Left-Channel Bridged Amplifier Negative Output
8
INL2
Left-Channel Input 2
9
INL1
Left-Channel Input 1
10
MICIN+
Differential Microphone Amplifier Noninverting Input
11
MICIN-
Differential Microphone Amplifier Inverting Input
12
AUXIN
Single-Ended Microphone Amplifier Input
13
VDD
Power Supply
14
SVDD
Standby Power Supply. Connect to a standby power supply that is always on,
or connect to VDD through a Schottky diode and bypass with a 220F
capacitor to GND. Short to VDD if clickless operation is not essential.
15
MICBIAS
Microphone Bias Output. Bypass MICBIAS with a 1F capacitor to GND.
16
MICOUT
Microphone Amplifier Output
17
GAINR
Right-Channel Gain Set
19
22
OUTR-
Right-Channel Bridged Amplifier Negative Output
22
19
OUTR+
Right-Channel Bridged Amplifier Positive Output. OUTR+ also serves as the
right-channel headphone amplifier output.
23
ADD
Address Select. A logic high sets the address LSB to 1, a logic low sets the
address LSB to 0.
24
SDA
Bidirectional Serial Data I/O
25
SCL
Serial Clock Line
26, 29
29
GND
Ground
27
INR2
Right-Channel Input 2
28
INR1
Right-Channel Input 1
30
HPS
Headphone Sense Input
31
BIAS
DC Bias Bypass. See BIAS Capacitor section for capacitor selection.
Connect CBIAS capacitor from BIAS to GND.
32
GAINL
Left-Channel Gain Set
—16
16
MICOUT+
Microphone Amplifier Positive Output
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