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參數資料
| 型號： | TPA6135A2RTET |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 0.025 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC16 |
| 封裝： | 3 X 3 MM, PLASTIC, QFN-16 |
| 文件頁數： | 4/23頁 |
| 文件大小： | 948K |
| 代理商： | TPA6135A2RTET |
GAIN CONTROL
High Output Impedance
+
–
VideoBuffer/Amp
(i.e:THS7375)
TPA6135A2
75 W
OUTR
OUTL
SLOS623A – FEBRUARY 2009 – REVISED APRIL 2009 .................................................................................................................................................. www.ti.com
The TPA6135A2 has two gain settings which are controlled with the GAIN pin. The following table gives an
overview of the gain function.
GAIN VOLTAGE
AMPLIFIER GAIN
≤ 0.6 V
0 dB
≥ 1.3 V
6 dB
Table 1. Windows Vista Premium Mobile Mode Specifications
Windows Premium Mobile Vista
Device Type
Requirement
TPA6135A2 Typical Performance
Specifications
THD+N
≤ –65 dB FS [20 Hz, 20 kHz]
–75 dB FS [20 Hz, 20 kHz]
Analog Speaker Line Jack
Dynamic Range with Signal
(RL = 10 k, FS = 0.707
≤ –80 dB FS A-Weight
–100 dB FS A-Weight
Present
Vrms)
Line Output Crosstalk
≤ –60 dB [20 Hz, 20 kHz]
–90 dB [20 Hz, 20 kHz]
THD+N
≤ –45 dB FS [20 Hz, 20 kHz]
–65 dB FS [20 Hz, 20 kHz]
Analog Headphone Out Jack
Dynamic Range with Signal
(RL = 32, FS = 0.300
≤ –80 dB FS A-Weight
–94 dB FS A-Weight
Present
Vrms)
Headphone Output Crosstalk
≤ –60 dB [20 Hz, 20 kHz]
–90 dB [20 Hz, 20 kHz]
The TPA6135A2 has a HI-Z control pin that increases output impedance while mutting the amplifier. Apply a
voltage greater than 1.3 V to the HI-Z and EN pin to activate the HI-Z mode. This feature allows the headphone
output jack to be shared for other functions besides audio. For example, sharing of a headphone jack between
audio and video as shwon in Figure 26. The TPA6135A2 output impedance is high enough to prevent
attenuating the video signal.
Maximum
External Voltage
Enable Voltage
HI-Z Voltage
Output Impedance
Comments
Applied to the
Output Pins
≤ 0.6 V
20
– 30
–0.3 V to 3.3 V(1)
Shutdown Mode
≤ 0.6 V
≥ 1.3 V
20
–30
≥ 1.3 V
≤ 0.6 V
≤ 1
–
Active Mode
40 k
@ 10 kHz
≥ 1.3 V
4.5 k
@ 1 MHz
–1.8 V to 1.8 V
HI-Z Mode
750
@ 10 MHz
(1)
If VDD is < 3.3 V, then maximum allowed external voltage applied is VDD in this mode
Figure 26. Sharing One Connector Between Audio and Video Signals Example
12
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s) :TPA6135A2
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA6135A2RTET | 制造商:Texas Instruments 功能描述:Audio Power Amplifiers TI |
| TPA6136A2 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:25-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH POP SUPPRESSION |
| TPA6136A2YFFEVM | 功能描述:音頻 IC 開發工具 TPA6136A2YFF Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TPA6136A2YFFR | 功能描述:音頻放大器 25mW DirectPath St Headphone Amp RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TPA6136A2YFFT | 功能描述:音頻放大器 25mW DirectPath St Headphone Amp RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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