- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98274 > TPA6030A4PWPG4 (TEXAS INSTRUMENTS INC) 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28 PDF資料下載
參數(shù)資料
| 型號： | TPA6030A4PWPG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻控制 |
| 英文描述： | 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28 |
| 封裝： | GREEN, PLASTIC, TSSOP-28 |
| 文件頁數(shù)： | 30/32頁 |
| 文件大?。?/td> | 698K |
| 代理商： | TPA6030A4PWPG4 |
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頁第24頁第25頁第26頁第27頁第28頁第29頁當(dāng)前第30頁第31頁第32頁
TPA6030A4
SLOS395B DECEMBER 2002 REVISED JANUARY 2005
www.ti.com
7
The volume in single-ended (SE) mode is determined by the following equation:
SE Volume + min [(VOLUME * SEDIFF) or (SEMAX)]*6dB, where VOLUME is the voltage (expressed in terms
of %VREF) applied to the VOLUME pin, SEDIFF is the voltage (%VREF) applied to the SEDIFF pin, and SEMAX is the
voltage (%VREF) applied to the SEMAX pin. The SE Volume control is integrated into the 32-step volume control. A block
diagram of the SE Volume control portion is shown in Figure 1.
+
VOLUME
SEDIFF
SEMAX
Control
2:1 Mux
VOLUMESEDIFF
SEMAX
To Next Stage of
32-Step Volume
Control
Figure 1. Block Diagram of the SE Volume Control
Refer to the section entitled Volume Control Description in the Application Information section of this data sheet for more
details regarding the use of the volume control.
Speaker Volume
Headphone Volume With
SEMAX Set to 5VREF
Headphone Volume With
SEMAX Set to 7.2 dB
VOLUME CONTROL
40
30
20
10
0
10
20
30
40
50
60
70
80
90
010
20
30
40
50
%5VREF
60
70
80
90
100
Volume
dB
SEDIFF = 0 V
Figure 2. Speakers (BTL) and Headphones (SE) Volume vs %5VREF
Figure 2 illustrates the functionality of the TPA6030A4 volume control. As the voltage applied to the VOLUME control pin
is increased, the volume increases.
Increasing the voltage on the SEDIFF pin increases the delta in volume between speaker (BTL) and headphone (SE)
volume from a minimum of 6 dB to a maximum reduction in headphone volume, resulting in mute.
The SEMAX input limits the maximum output level in headphone mode. The dashed line shows operation with SEMAX
set to 5VREF, which results in maximum output in headphone mode. The horizontal line in Figure 2 shows operation with
SEDIFF set to 0V, and SEMAX set to 67.3% of 5VREF, for a maximum volume in headphone mode of 7.2 dB.
Neither SEMAX nor SEDIFF have any affect on the volume in speaker mode.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TPA6040A4RHBT | 2.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
| TPA6041A4RHBRG4 | 2.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
| TPA6041A4RHBR | 2.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
| TPA6043A4RHBRG4 | 2.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
| TPA6043A4RHBR | 2.3 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TPA6030A4PWPR | 功能描述:音頻放大器 Wide Supply Voltage Low Power Class-AB 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 |
| TPA6030A4PWPRG4 | 功能描述:音頻放大器 Wide Supply Voltage Low Power Class-AB 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 |
| TPA6040A4 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-W STEREO AUDIO POWER AMPLIFIER WITH DirectPath STEREO HEADPHONE DRIVE AND REGULATOR |
| TPA6040A4EVM | 功能描述:音頻 IC 開發(fā)工具 TPA6040A4 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 |
| TPA6040A4RHB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2-W STEREO AUDIO POWER AMPLIFIER WITH DirectPath STEREO HEADPHONE DRIVE AND REGULATOR |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。