- 您现在的位置：买卖IC网 > PDF目录98160 > TAS5086DBTR (TEXAS INSTRUMENTS INC) SPECIALTY CONSUMER CIRCUIT, PDSO38 PDF资料下载
参数资料
| 型号： | TAS5086DBTR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
| 封装： | GREEN, TSSOP-38 |
| 文件页数： | 6/47页 |
| 文件大小： | 814K |
| 代理商： | TAS5086DBTR |
第1页第2页第3页第4页第5页当前第6页第7页第8页第9页第10页第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页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页
PSU
VPP
GND
IN
PWM
TAS5086
OUT
S0270-01
PowerStage
SLES131C – FEBRUARY 2005 – REVISED JUNE 2008 ................................................................................................................................................... www.ti.com
Figure 9. SE Filter Configuration
The TAS5086 supports two mechanisms for controlling the split-capacitor midpoint.
In the extra half-bridge scheme (the TAS5186 power stage is an example of this) an additional half-bridge is
started and brought to a 50-percent duty cycle, i.e., a situation where the average voltage of the half-bridge is
equal to the voltage which must be applied to the split-capacitor midpoint to start up without clicks in the speaker.
A resistor per channel is connected between the extra half-bridge and each midpoint for the split capacitors. The
split capacitors are charged through this resistor. This approach requires an extra VALID pin on the modulator to
control the extra half-bridge, therefore the 1N+2 interface. Figure 10 shows the topology of the extra half-bridge.
In some situations, a channel configured in BTL can be used to charge the split capacitor instead of the extra
half-bridge. This is shown in Figure 11.
The mid-Z scheme charges the split capacitor through the loudspeaker. In order to do this without audible
artifacts the charge current must be limited. This is done by applying a start sequence which charges the output
state between low, high and high-Z. Because the ouput stage is in high-Z in a part of the sequence, the resulting
output impedance can be brought to a level suitable for charging the split capacitors without audible artifacts.
This solution does not require external components, as shown in Figure 9. Not all power stages are compatible
with the mid-Z scheme, double-check the power-stage data sheet for compabitility. The PWM start register
(0x18) programs the TAS5086 for mid-Z or the standard low-Z start sequence.
14
Copyright 2005–2008, Texas Instruments Incorporated
Product Folder Link(s): TAS5086
相关PDF资料 |
PDF描述 |
|---|---|
| TAS5086DBTRG4 | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
| TAS5086DBTG4 | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
| TAS5100AIDAPRG4 | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO32 |
| TAS5100ADAPRG4 | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO32 |
| TAS5100AIDAPR | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TAS5086DBTRG4 | 功能描述:音频 DSP 6 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| TAS5100 | 制造商:TI 制造商全称:Texas Instruments 功能描述:TRUE DIGITAL AUDIO AMPLIFIER TAS5100A PWM POWER OUTPUT STAGE |
| TAS5100A | 制造商:TI 制造商全称:Texas Instruments 功能描述:TRUE DIGITAL AUDIO AMPLIFIER TAS5100A PWM POWER OUTPUT STAGE |
| TAS5100A_07 | 制造商:TI 制造商全称:Texas Instruments 功能描述:TRUE DIGITAL AUDIO AMPLIFIER TAS5100A PWM POWER OUTPUT STAGE |
| TAS5100ADAP | 功能描述:IC AMP AUDIO PWR 30W D 32TSSOP 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) |
发布紧急采购，3分钟左右您将得到回复。