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参数资料
| 型号： | LM4832M/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 音频控制 |
| 英文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO28 |
| 封装： | SOIC-28 |
| 文件页数： | 20/23页 |
| 文件大小： | 577K |
| 代理商： | LM4832M/NOPB |
Pin Descriptions
Pin Name
Description
LEFT 3D (1)
RIGHT 3D (28)
An external RC network is connected across these pins. This function
provides left-right channel cross coupling and cancellation to create an
enhanced stereo channel separation effect.
BYPASS (2)
A 0.1 F capacitor is placed between this pin and ground to provide an
AC ground for the internal half-supply voltage reference. The capacitor at
this pin affects “click-pop” and THD performance. Turn-on and turn-off
times are also determined by this capacitor. Refer to the Application
Information section for more information.
POWER AMP OUT LEFT (3) RIGHT (26)
These outputs are intended to drive 8
speakers or 32 headphones.
These outputs should be AC-coupled to the loads. Refer to the
Application Information section for more information.
POWER GND (4)
This pin provides the high current return for the power output stage
MOSFETs and digital circuitry.
LOOP OUT (8, 21) LOOP IN (5, 24)
These pins allow an external signal processor access to the stereo signal.
Please see the Application Information section for more information.
TONE OUT
(6, 23)
These pins are connected to the tone control op amp outputs and drive
the power amplifier inputs. Refer to the Application Information section for
more information.
TONE IN
(7, 22)
These pins are connected to the inputs of the tone control op amps. A
capacitor between the Tone In and Tone Out pins sets the frequency
response of the tone functions. Please refer to the Application Information
section for more information.
INPUTS
(9, 20)
These pins are the stereo inputs for the LM4832. These pins should be
AC-coupled to the input signals.
ANALOG GND (10)
This pin is the AC analog ground for the line level AC signal inputs.
MIC INPUTS (11, 12)
These pins are the two independent selectable microphone inputs. These
pins should be AC-coupled.
MIC OUT (14)
This pin is the output for the microphone amplifier and should be
AC-coupled to the load.
V
DD
(13, 25)
These pins are for the 5V supply. These pins should be separately
bypassed by 0.1 F, or higher, film capacitors. The 5V supply should be
bypassed by a 10 F, or higher, tantalum or aluminum electrolytic
capacitor.
ADDRESS BITS (15, 16)
These pins are used to determine the I
2C address for the LM4832.
CLOCK (17)
This pin is the input for the I
2C clock signal.
DATA (18)
This pin is the input for the I
2C data signal.
GENERAL PURPOSE OUTPUT (19)
This pin provides a general purpose TTL/CMOS output. Please refer to
the Application Information section for more information.
RESET (27)
This pin is a TTL/CMOS input which is used to reset the chip logic and
states.
LM4832
www.national.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LM4832MT/NOPB | 功能描述:IC AMP AUDIO PWR .25W AB 28TSSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:Boomer® 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) |
| LM4832MTX/NOPB | 功能描述:IC AMP AUDIO PWR .25W AB 28TSSOP RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:Boomer® 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) |
| LM4832MX | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Digitally Controlled Tone and Volume Circuit with Stereo Audio Power Amplifier, Microphone Preamp Stage and National 3D Sound |
| LM4832MX/NOPB | 功能描述:IC AMP AUDIO PWR .25W AB 28SOIC RoHS:是 类别:集成电路 (IC) >> 线性 - 音頻放大器 系列:Boomer® 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) |
| LM4832N | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Digitally Controlled Tone and Volume Circuit with Stereo Audio Power Amplifier, Microphone Preamp Stage and National 3D Sound |
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