參數(shù)資料
型號(hào)： MAX9762ETI+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 4/31頁(yè)
文件大?。?/td> 0K
描述： IC AMP AUDIO PWR 3W MONO 28TQFN
標(biāo)準(zhǔn)包裝： 60
類(lèi)型： AB 類(lèi)
輸出類(lèi)型： 1-通道（單聲道），帶立體聲耳機(jī)
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 3W x 1 @ 3 歐姆; 200mW x 2 @ 16 歐姆
電源電壓： 4.5 V ~ 5.5 V
特點(diǎn)： 消除爆音，I²C，輸入多路復(fù)用器，靜音，關(guān)機(jī)，熱保護(hù)
安裝類(lèi)型： 表面貼裝
供應(yīng)商設(shè)備封裝： 28-TQFN-EP（5x5）
封裝/外殼： 28-WFQFN 裸露焊盤(pán)
包裝： 管件
MAX9760–MAX9763
Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
12
______________________________________________________________________________________
Detailed Description
The MAX9760–MAX9763 feature 3W BTL speaker
amplifiers, 200mW headphone amplifiers, input multi-
plexers, headphone sensing, and comprehensive click-
and-pop suppression. The MAX9760/ MAX9761 are
stereo BTL/headphone amplifiers. The MAX9762/
MAX9763 are mono BTL/stereo headphone amplifiers.
The MAX9760/MAX9762 are controlled through an I2C-
compatible, 2-wire serial interface. The MAX9761/
MAX9763 are controlled through five logic inputs:
MUTE, SHDN, HPS_EN, GAINA/B, and IN1/2 (see
Selector Guide). The MAX9760–MAX9763 feature
exceptional PSRR (100dB at 1kHz), allowing these
devices to operate from noisy digital supplies without
the need for a linear regulator.
The speaker amplifiers use a BTL configuration. The
signal path is composed of an input amplifier and an
output amplifier. Resistor RIN sets the input amplifier’s
gain, and resistor RF sets the output amplifier’s gain.
The output of these two amplifiers serves as the input to
a slave amplifier configured as an inverting unity-gain
follower. This results in two outputs, identical in magni-
tude, but 180° out of phase. The overall gain of the
speaker amplifiers is twice the product of the two
amplifier gains (see Gain-Setting Resistor section). A
feature of this architecture is that there is no phase
inversion from input to output.
Pin Description (continued)
PIN
MAX9760
MAX9761
MAX9762
MAX9763
QFN
TSSOP
QFN
TSSOP
QFN
TSSOP
QFN
TSSOP
NAME
FUNCTION
19
16
19
16
19
16
19
16
INR1
Right-Channel Input 1
20
17
20
17
20
17
20
17
INR2
Right-Channel Input 2
21
18
21
18
21
18
21
18
GAINRA
Right-Channel Gain Set A
22
19
22
19
22
19
22
19
GAINRB
Right-Channel Gain Set B
24
21
24
21
24
21
24
21
OUTR+
Right-Channel Bridged Amplifier
Positive Output. OUTR+ also
serves as the right-channel
headphone amplifier output.
26
23
26
23
26
23
26
23
OUTR-
Right-Channel Bridged Amplifier
Negative Output
28
25
——
28
25
——
SCL
Serial Clock Line
——
—
12
9
12
9
N.C.
No Connection. Not internally
connected.
——
—
18
15
18
15
GAINM
Mono Gain Set
——
126
——
1
26
MUTE
Active-High Mute Input
——
227
——
2
27
HPS_EN
Headphone Enable. A logic high
enables HPS. A logic low disables
HPS and the device is always
configured as a BTL speaker amp.
——
15
12
——
15
12
GAINA/B
Gain Select. A logic low selects
the gain set by GAIN_A. A logic
high selects the gain set by
GAIN_B.
——
28
25
——
28
25
IN1/2
Input Select. A logic low selects
amplifier input 1. A logic high
selects amplifier input 2.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9762ETI+ 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9762ETI+T 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9762ETI-T 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9762EUI 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX9762EUI+ 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
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