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參數(shù)資料
| 型號： | MAX9761ETI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 6/31頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO PWR 3W STER 28TQFN |
| 標準包裝： | 60 |
| 類型： | AB 類 |
| 輸出類型： | 2-通道（立體聲）帶立體聲耳機 |
| 在某負載時最大輸出功率 x 通道數(shù)量： | 3W x 2 @ 3 歐姆; 200mW x 2 @ 16 歐姆 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 特點： | 消除爆音，輸入多路復用器，靜音，關機，熱保護， |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 28-TQFN-EP（5x5） |
| 封裝/外殼： | 28-WFQFN 裸露焊盤 |
| 包裝： | 管件 |
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MAX9760–MAX9763
Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
14
______________________________________________________________________________________
GND. Driving SHDN low places the devices into shut-
down mode, disables the interface, and resets the I2C
registers to a default state. A logic high on SHDN
enables the devices.
MAX9760/MAX9762 Software Shutdown
A logic high on bit 0 of the SHDN register places the
MAX9760/MAX9762 in shutdown mode. A logic low
enables the device. The digital section of the
MAX9760/MAX9762 remains active when the device is
shut down through the interface. All devices feature a
logic low on the SHDN input.
MUTE
All devices feature a mute mode. When the device is
muted, the input is disconnected from the amplifiers.
MUTE does not shut down the device.
MAX9760/MAX9762 MUTE
The MAX9760/MAX9762 MUTE mode is selected by
writing to the MUTE register (see the Command Byte
Definitions section). The left and right channels can be
independently muted.
MAX9761/MAX9763 MUTE
The MAX9761/MAX9763 feature an active-high MUTE
input that mutes both channels.
Click-and-Pop Suppression
The MAX9760–MAX9763 feature Maxim’s comprehen-
sive click-and-pop suppression. During startup and
shutdown, the common-mode bias voltage of the ampli-
fiers is slowly ramped to and from the DC bias point
using an S-shaped waveform. In headphone mode, this
waveform shapes the frequency spectrum, minimizing
the amount of audible components present at the head-
phone. In speaker mode, the BTL amplifiers start up in
the same fashion as in headphone mode. When enter-
ing shutdown, both amplifier outputs ramp to GND
quickly
and
simultaneously.
The
MAX9760–
MAX9763 can also be connected to a standby power
source that ensures that the device undergoes its full
shutdown cycle even after power has been removed.
Standby Power Supply (SVDD)
The MAX9760–MAX9763 feature a system that provides
clickless power-down when power is inadvertently
removed from the device. SVDD is an optional sec-
ondary supply that powers the device through its shut-
down cycle when VDD is removed. During this cycle,
the amplifier output DC level slowly ramps to GND,
ensuring clickless power-down. If clickless power-down
is required, connect SVDD to either a secondary power
supply that is always on, or connect a reservoir capaci-
tor from SVDD to GND. SVDD does not need to be con-
nected to either a secondary power supply or reservoir
capacitor for normal device operation. If click-and-pop
suppression during power-down is not required, con-
nect SVDD to VDD directly.
MAX9760–
MAX9763
R3
47k
Ω
R1
680k
Ω
R2
10k
Ω
HPS
VDD
OUTL+
OUTR+
Figure 2. HPS Configuration Circuit
INPUTS
HPSD
HPS
SPKR/HP
MODE
MAX9760
GAIN
PATH*
MAX9762
GAIN
PATH*
0
X
BTL
A
M
01
X
SE
B
1
X
0
BTL
A or B
M
1
X
1
SE
A or B
Table 1a. HPS Setting (MAX9760/MAX9761)
INPUTS
HPSEN
HPS
MODE
MAX9761
GAIN PATH*
MAX9763
GAIN PATH*
0
X
BTL
A or B
M
1
0
BTL
A or B
M
1
SE
A or B
Table 1b. HPS Setting (MAX9762/MAX9763)
*Note:
A – GAINA path selected
B – GAINB path selected
M – GAINM path selected
A or B – Gain path selected by GAINAB control bit in register
02h
*Note:
A or B – Gain path selected by external GAINAB
M – GAINM path selected
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9761ETI+ | 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9761ETI+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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9761ETI-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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9761EUI | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9761EUI+ | 功能描述:IC AMP AUDIO PWR 3W STER 28TSSOP RoHS:是 類別:集成電路 (IC) >> 線性 - 音頻放大器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:DirectDrive® 類型:H 類 輸出類型:耳機，2-通道（立體聲） 在某負載時最大輸出功率 x 通道數(shù)量:35mW x 2 @ 16 歐姆 電源電壓:1.62 V ~ 1.98 V 特點:I²C，麥克風，靜音，短路保護，音量控制 安裝類型:表面貼裝 供應商設備封裝:25-WLP（2.09x2.09） 封裝/外殼:25-WFBGA，WLCSP 包裝:帶卷 (TR) |
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