- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98165 > TAS5710PHPR (TEXAS INSTRUMENTS INC) 20.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 PDF資料下載
參數(shù)資料
| 型號： | TAS5710PHPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 20.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封裝： | 7 X 7 MM, GREEN, PLASTIC, HTQFP-64 |
| 文件頁數(shù)： | 24/57頁 |
| 文件大?。?/td> | 1124K |
| 代理商： | TAS5710PHPR |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁當(dāng)前第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁
APPLICATION INFORMATION
Calculation of Output Signal Level of TAS5710 Feedback Power Stage
SLOS605 – JANUARY 2009............................................................................................................................................................................................... www.ti.com
(Gain Is independent of PVCC)
The gain of the TAS5710 is the total digital gain of the controller multiplied by the gain of the power stage.
For a half-bridge channel of the TAS5710 power stage, the gain is simply:
Power stage gain = 13 × VRMS / Modulation Level
Modulation level = fraction of full-scale modulation of the PWM signal at the input of the power stage.
VRMS(SE) = Audio voltage level at the output of the power stage = 13 × Modulation Level
VRMS(BTL) = 2 × Audio voltage level at the output of the power stage = 26 × Modulation Level
For the TAS5710 controller, the gain is the programmed digital gain multiplied by a scaling factor, called the
maximum modulation level. The maximum modulation level is derived from the modulation limit programmed in
the controller, which limits duty cycle to a set number of percent above 0% and below 100%. Setting the
modulation limit to 97.7% (default) limits the duty cycle between 2.3% and 97.7%.
Controller gain = digital gain × maximum modulation level × (modulation level/digital FFS)
Digital FFS = digital input fraction of full scale
Modulation limit = 97.7%
Maximum modulation level = 2 × modulation limit – 1 = 0.954
The output signal level of the TAS5710 can now be calculated:
VRMS(SE) = digital FFS × digital gain × maximum modulation level × 13
VRMS(BTL) = 2 × VRMS(SE)
With the modulation limit set at the default level of 97.7%, this becomes:
VRMS (BTL) = digital FFS × digital gain × 24.8
Example: Input = –20 dbFS; volume = 0 dB; biquads = ALL PASS; modulation index = 97.7%; mode = BTL
Output VRMS (BTL) = 24.8 × 0.1 × 1 = 2.48 V.
30
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): TAS5710
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TAS5710PHP | 20.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| TAS5715PHPR | 41.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| TAS5715PHP | 41.5 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| TAS5716PAPR | 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
| TAS5716PAP | 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TAS5711 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:20-W DIGITAL AUDIO-POWER AMPLIFIER WITH EQ, DRC, AND 2.1 MODE |
| TAS5711PHP | 功能描述:音頻放大器 2-Channel Dig Audio Amp 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5711PHP | 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC 制造商:Texas Instruments 功能描述:IC, AUDIO PWR AMP, CLASS D, 20W HTQFP-48 |
| TAS5711PHPEVM | 功能描述:音頻 IC 開發(fā)工具 TAS5711PHP Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TAS5711PHPR | 功能描述:音頻放大器 2-Channel Dig Audio Amp 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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。