- 您现在的位置：买卖IC网 > PDF目录2091 > MAX9763ETI+T (Maxim Integrated Products)IC AMP AUDIO PWR 3W MONO 28TQFN PDF资料下载
参数资料
| 型号： | MAX9763ETI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/31页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO PWR 3W MONO 28TQFN |
| 标准包装： | 2,500 |
| 类型： | AB 类 |
| 输出类型： | 1-通道（单声道），带立体声耳机 |
| 在某负载时最大输出功率 x 通道数量： | 3W x 1 @ 3 欧姆; 200mW x 2 @ 16 欧姆 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 特点： | 消除爆音，输入多路复用器，静音，关机，热保护， |
| 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) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页
MAX9760–MAX9763
Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
______________________________________________________________________________________
19
When the MAX9760/MAX9762 are configured to auto-
matically detect the presence of a headphone jack, the
device defaults to gain setting A when the device is in
speaker mode. When the MAX9762/MAX9763 are con-
figured as speaker amplifiers, the gain setting defaults
to the mono setting (GAINM).
Single-Ended Headphone Amplifier
The MAX9760–MAX9763 can be configured as single-
ended headphone amplifiers through software or by
sensing the presence of a headphone plug (HPS). In
headphone mode, the inverting output of the BTL
amplifier is disabled, muting the speaker. The gain is
1/2 that of the device in speaker mode, and the output
power is reduced by a factor of 4.
In headphone mode, the load must be capacitively
coupled to the device, blocking the DC bias voltage
from the load (see Typical Application Circuit).
Power Dissipation and Heat Sinking
Under normal operating conditions, the MAX9760–
MAX9763 can dissipate a significant amount of power.
The maximum power dissipation for each package is
given in the Absolute Maximum Ratings section under
Continuous Power Dissipation or can be calculated by
the following equation:
where TJ(MAX) is +150°C, TA is the ambient tempera-
ture, and
θJA is the reciprocal of the derating factor in
°C/W as specified in the Absolute Maximum Ratings
section. For example,
θJA of the QFN package is
+42°C/W.
The increase in power delivered by the BTL configura-
tion directly results in an increase in internal power dis-
sipation over the single-ended configuration. The
maximum power dissipation for a given VDD and load is
given by the following equation:
If the power dissipation for a given application exceeds
the maximum allowed for a given package, either reduce
VDD, increase load impedance, decrease the ambient
temperature, or add heat sinking to the device. Large
output, supply, and ground PC board traces improve the
maximum power dissipation in the package.
Thermal overload protection limits total power dissipa-
tion in these devices. When the junction temperature
exceeds +160°C, the thermal protection circuitry dis-
ables the amplifier output stage. The amplifiers are
enabled once the junction temperature cools by 15°C.
This results in a pulsing output under continuous ther-
mal-overload conditions as the device heats and cools.
P
V
R
DISS MAX
DD
L
() =
2
π
P
TT
DISSPKG MAX
J MAX
A
JA
()
=
θ
REGISTER ADDRESS
0000 0000
BIT
NAME
VALUE
DESCRIPTION
0
Device temperature below thermal limit
7
THRM
1
Device temperature exceeding thermal limit
0
OUTR- current below current limit
6
AMPR-
1
OUTR- current exceeding current limit
0
OUTR+ current below current limit
5
AMPR+
1
OUTR+ current exceeding current limit
0
OUTL- current below current limit
4
AMPL-
1
OUTL- current exceeding current limit
0
OUTL+ current below current limit
3
AMPL+
1
OUTL+ current exceeding current limit
0
Device in speaker mode
2
HPSTS
1
Device in headphone mode
1
X
Don’t Care
—
0
X
Don’t Care
—
Table 6. Status Register Format
相关PDF资料 |
PDF描述 |
|---|---|
| MAX9767ETJ+T | IC AMP AUDIO .75W STER AB 32TQFN |
| MAX9768ETG+T | IC AMP AUDIO 10W MONO D 24TQFN |
| MAX9770EUI+T | IC AMP AUDIO 1.2W MONO D 28TSSOP |
| MAX9773EBP+TG45 | IC AMP AUDIO PWR 1.8W D 20UCSP |
| MAX9776ETJ+T | IC AMP AUDIO PWR 1.5W D 32TQFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9763EUI | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9763EUI+ | 功能描述:IC AMP AUDIO PWR 3W MONO 28TSSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
| MAX9763EUI+T | 功能描述:IC AMP AUDIO PWR 3W MONO 28TSSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:DirectDrive® 类型:H 类 输出类型:耳机，2-通道（立体声） 在某负载时最大输出功率 x 通道数量:35mW x 2 @ 16 欧姆 电源电压:1.62 V ~ 1.98 V 特点:I²C，麦克风，静音，短路保护，音量控制 安装类型:表面贴装 供应商设备封装:25-WLP（2.09x2.09） 封装/外壳:25-WFBGA，WLCSP 包装:带卷 (TR) |
| MAX9765ETJ | 功能描述:音频放大器 RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
| MAX9765ETJ+ | 功能描述:音频放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 产品:General Purpose Audio Amplifiers 输出类型:Digital 输出功率: THD + 噪声: 工作电源电压:3.3 V 电源电流: 最大功率耗散: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:TQFP-64 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。