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参数资料
| 型号： | TDA8933BTW |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 音频／视频放大 |
| 英文描述： | Class D Audio Amplifier |
| 中文描述： | 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO32 |
| 封装： | 6.10 MM, 0.65 MM PITCH, PLASTIC, SOT-249-1, HTSSOP-32 |
| 文件页数： | 38/42页 |
| 文件大小： | 245K |
| 代理商： | TDA8933BTW |
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TDA8933B_1
NXP B.V. 2008. All rights reserved.
Preliminary data sheet
Rev. 01 — 23 October 2008
5 of 42
NXP Semiconductors
TDA8933B
Class D audio amplier
[1]
The exposed die pad has to be connected to VSSD(HW).
8.
Functional description
8.1 General
The TDA8933B is a mono full-bridge or stereo half-bridge audio power amplier using
class D technology. The audio input signal is converted into a PWM signal via an analog
input stage and a PWM modulator. To enable the output power Diffusion Metal Oxide
Semiconductor (DMOS) transistors to be driven, this digital PWM signal is applied to a
control and handshake block and driver circuits for both the high side and low side. A
2nd-order low-pass lter in the application converts the PWM signal to an analog audio
signal across the loudspeakers.
The TDA8933B contains two independent half bridges with full differential input stages.
The loudspeakers can be connected in the following congurations:
Mono full-bridge: Bridge-Tied Load (BTL)
Stereo half-bridge: Single-Ended (SE)
The TDA8933B contains circuits common to both channels such as the oscillator, all
reference sources, the mode functionality and a digital timing manager. The following
protections are built-in: thermal foldback and overtemperature, current and voltage
protections.
HVP2
19
half supply output voltage 2 for charging single-ended capacitor for
channel 2
VDDP2
20
positive power supply voltage for channel 2
BOOT2
21
bootstrap high-side driver channel 2
OUT2
22
Pulse Width Modulated (PWM) output channel 2
VSSP2
23
negative power supply voltage for channel 2
STAB2
24
decoupling of internal 11 V regulator for channel 2 drivers
STAB1
25
decoupling of internal 11 V regulator for channel 1 drivers
VSSP1
26
negative power supply voltage for channel 1
OUT1
27
PWM output channel 1
BOOT1
28
bootstrap high-side driver for channel 1
VDDP1
29
positive power supply voltage for channel 1
HVP1
30
half supply output voltage 1 for charging single-ended capacitor for
channel 1
OSCIO
31
oscillator input in slave conguration or oscillator output in master
conguration
VSSD(HW)
32
negative digital supply voltage and handle wafer connection
Exposed die
pad[1]
-
Table 3.
Pinning description …continued
Symbol
Pin
Description
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA8933BTW/N2,112 | 功能描述:音频放大器 Class D audio amplifier 32 leads 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 |
| TDA8933BTW/N2,118 | 功能描述:音频放大器 Class D audio amplifier 32 leads 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 |
| TDA8933BTW/N2,512 | 功能描述:音频放大器 TDA8933BTW/HTSSOP32/TUBEDP//N2 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 |
| TDA8933BTW/N2,518 | 功能描述:音频放大器 TDA8933BTW/HTSSOP32/REEL13DP// 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 |
| TDA8933T | 功能描述:音频放大器 2X10W BTL CLASS D AMP+VOLCTRL 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 |
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