- 您现在的位置：买卖IC网 > PDF目录98267 > TPA0202PWPG4 (TEXAS INSTRUMENTS INC) 2.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 PDF资料下载
参数资料
| 型号： | TPA0202PWPG4 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 2.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| 封装： | GREEN, PLASTIC, HTSSOP-24 |
| 文件页数： | 29/45页 |
| 文件大小： | 1035K |
| 代理商： | TPA0202PWPG4 |
第1页第2页第3页第4页第5页第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页当前第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
TPA0202
2-W STEREO AUDIO POWER AMPLIFIER
SLOS205B – FEBRUARY 1998 – REVISED DECEMBER 2000
35
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
APPLICATION INFORMATION
SE/BTL operation
The ability of the TPA0202 to easily switch between BTL and SE modes is one of its most important cost saving
features. This feature eliminates the requirement for an additional headphone amplifier in applications where
internal stereo speakers are driven in BTL mode but external headphone or speakers must be accommodated.
Internal to the TPA0202, two separate amplifiers drive OUT+ and OUT–. The SE/BTL input (terminal 14)
controls the operation of the follower amplifier that drives LOUT– and ROUT– (terminals 10 and 15). When
SE/BTL is held low, the amplifier is on and the TPA0202 is in the BTL mode. When SE/BTL is held high, the OUT–
amplifiers are in a high output impedance state, which configures the TPA0202 as an SE driver from LOUT+
and ROUT+ (terminals 3 and 22). IDD is reduced by approximately one-half in SE mode. Control of the SE/BTL
input can be from a logic-level CMOS source or, more typically, from a resistor divider network as shown in
Figure 68.
MUX
RLINE IN
RHP IN
+
–
Bypass
SE/BTL
HP/LINE
Rm2
100 k
Rm1
100 k
VDD
COUTR
16
14
Rm3
1 k
+
–
ROUT – 15
ROUT+ 22
Left
Channel
20
21
0.1
F
Figure 68. TPA0202 Resistor Divider Network Circuit
Using a readily available 1/8-in. (3.5 mm) stereo headphone jack, the control switch is closed when no plug is
inserted. When closed the 100-k
/1-k divider pulls the SE/BTL input low. When a plug is inserted, the 1-k
resistor is disconnected and the SE/BTL input is pulled high. When the input goes high, the OUT– amplifier is
shutdown causing the speaker to mute (virtually open-circuits the speaker). The OUT+ amplifier then drives
through the output capacitor (CO) into the headphone jack.
As shown in the full feature application (Figure 63), the input MUX control can be tied to the SE/BTL input. The
benefits of doing this are described in the following input MUX operation section.
相关PDF资料 |
PDF描述 |
|---|---|
| TPA0202PWPRG4 | 2.2 W, 2 CHANNEL, AUDIO AMPLIFIER, PDSO24 |
| TPA0211DGN | 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA0211DGNR | 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA0211DGNG4 | 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
| TPA0211DGNRG4 | 2 W, 1 CHANNEL, AUDIO AMPLIFIER, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPA0202PWPR | 功能描述:音频放大器 2W St Aud Pwr Amp 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 |
| TPA0202PWPRG4 | 功能描述:音频放大器 2W St Aud Pwr Amp 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 |
| TPA0211 | 制造商:TI 制造商全称:Texas Instruments 功能描述:2-W MONO AUDIO POWER AMPLIFIER |
| TPA0211_07 | 制造商:TI 制造商全称:Texas Instruments 功能描述:2-W MONO AUDIO POWER AMPLIFIER |
| TPA0211DGN | 功能描述:音频放大器 2W Mono Audio 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 |
发布紧急采购，3分钟左右您将得到回复。